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WO2001002325A1 - Alkylbenzenes derived from fischer-tropsch hydrocarbons and their use in drilling fluids - Google Patents

Alkylbenzenes derived from fischer-tropsch hydrocarbons and their use in drilling fluids Download PDF

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Publication number
WO2001002325A1
WO2001002325A1 PCT/ZA2000/000119 ZA0000119W WO0102325A1 WO 2001002325 A1 WO2001002325 A1 WO 2001002325A1 ZA 0000119 W ZA0000119 W ZA 0000119W WO 0102325 A1 WO0102325 A1 WO 0102325A1
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composition
drilling fluid
alkyl chain
alkyl
branched
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French (fr)
Inventor
Sybrandus Kindermans
Dave Hedley Morgan
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Sasol Technology Pty Ltd
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Sasol Technology Pty Ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/02—Well-drilling compositions
    • C09K8/32—Non-aqueous well-drilling compositions, e.g. oil-based
    • C09K8/34—Organic liquids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C07C15/02—Monocyclic hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C07C15/02—Monocyclic hydrocarbons
    • C07C15/107—Monocyclic hydrocarbons having saturated side-chain containing at least six carbon atoms, e.g. detergent alkylates

Definitions

  • the invention relates to the use of Fischer-Tropsch hydrocarbons for the . production of alkyl benzene (AB) and drilling fluid compositions.
  • the Fischer-Tropsch process is a well known process for the production of hydrocarbons from carbon monoxide and hydrogen i.e from syngas.
  • the Fischer-Tropsch reaction for the production of the hydrocarbons may be effected in a fixed bed, in a slurry bed, or in a fluidised bed reactor.
  • the Fischer-Tropsch reaction conditions may include utilising a reaction temperature of between 190°C and 340°C, with the actual reaction temperature being largely determined by the reactor configuration.
  • the reaction temperature is preferably between 300°C and 340°C; when a fixed bed reactor is used, the reaction temperature is preferably between 200°C and 250°C; and when a slurry bed reaction is used, the reaction temperature is preferably between 190°C and 270°C.
  • An inlet synthesis gas pressure to the Fischer-Tropsch reactor of between 1 and 50 bar, preferably between 15 and 50 bar, may be used.
  • the synthesis gas may have a H 2 :CO molar ratio, in the fresh feed, of 1 ,5:1 to 2,5:1 , preferably 1 ,8:1 to 2,2:1.
  • a gas recycle may optionally be employed to the reaction stage, and the ratio of the gas recycle rate to the fresh synthesis gas feed rate, on a molar basis, may then be between 1 :1 and 3:1 , preferably between 1 ,5:1 and 2,5:1.
  • a space velocity, in m 3 (kg catalyst) "1 of from 1 to 20, preferably from 8 to 12, may be utilised in the reaction stage.
  • an iron-based, a cobalt-based or an iron/cobalt-based Fischer-Tropsch catalyst can be used in the Fischer-Tropsch reaction stage, however, an iron-based catalyst is preferred.
  • an alkyl benzene (AB) composition derived from Fischer-Tropsch process products, said AB composition including from 10% to 90% branched alkyl chain AB, said alkyl chain having branches of from 1 to 2 carbon atoms.
  • the AB of the AB composition is predominantly linear.
  • the AB composition includes between 10% and 49% branched alkyl chain AB.
  • the AB composition includes about 25% branched alkyl chain AB.
  • the branched alkyl chain AB portion of the AB composition is predominantly mono-methyl branched.
  • the branched alkyl chain AB portion of the AB composition may include di-methyl and/or ethyl branched alkyl chain AB.
  • the branching on the alkyl chain of the AB is predominantly on the C4+ carbon atoms, with some branching on the C2 carbon atom of the alkyl chain. Typically, the branching on the alkyl chain of the AB is at least 70% on the C4+ carbon atoms.
  • the branching on the alkyl chain of the AB may exceed 90% on the C4+ carbon atoms.
  • the AB of the AB composition may be obtained by alkylation of benzene with Fischer-Tropsch process products.
  • the AB composition may include
  • the AB of the AB composition may have up to 16 carbon atoms on the alkyl chain.
  • the alkylation of the benzene may proceed under conventional or novel process conditions using conventional or novel catalysts.
  • Typical catalysts for alkylation of the benzene include homogeneous Lewis acids including metal halides such as aluminium trichloride, Bronsted acids such as hydrogen fluoride, sulphuric acid, and phosphoric acid, and heterogeneous catalysts such as amorphous and crystalline silica alumina.
  • Methyl branching on the alkyl side chain leads to the formation of quaternary carbons which decreases biodegradeability.
  • narrow pore zeolites such as dealuminated mordenite, offretite and Beta zeolite, give higher selectivity to alkylation towards the end positions of the alkyl chain, typically on the 2-position of the alkyl chain. This leads to a reduction in the amount of quaternary carbons formed after alkylation and hence improves the biodegradation qualities of the product.
  • the AB composition requires no work up to increase or decrease the linearity and utilises as feedstock for production thereof the products of the Fischer-Tropsch process.
  • the feedstock is an olefinic product stream from a high temperature Fischer-Tropsch process, although the invention is not limited to any particular Fisher-Tropsch process conditions.
  • Fischer-Tropsch process products for the derivation of AB has economic advantages over other AB production processes in that the peculiar branched to linear ratios of the high temperature Fischer-Tropsch derived AB, as well as the peculiar branch types and branch positions allow for process steps such as delinearization or linearization to be omitted. Furthermore, the inventors believe that the AB composition of the invention is suitable as a substitute for presently used AB without extensive adjustment of detergent formulations.
  • a drilling fluid composition derived from Fischer-Tropsch process products
  • drilling fluid composition including between 10% and 90% branched
  • hydrocarbons having branches of from 1 to 2 carbon atoms having branches of from 1 to 2 carbon atoms.
  • the hydrocarbons of the drilling fluid composition are predominantly linear.
  • the hydrocarbons of the drilling fluid composition are ⁇ -
  • the drilling fluid composition includes between 10% and 49% branched hydrocarbons.
  • the drilling fluid composition includes between about 25% branched hydrocarbons.
  • the branched hydrocarbons portion of the drilling fluid composition is predominantly mono-methyl branched.
  • the branched hydrocarbons portion of the drilling fluid composition may include dimethyl and/or ethyl branched hydrocarbons.
  • the hydrocarbons of the drilling fluid composition may be obtained from high temperature Fischer-Tropsch process products.
  • the drilling fluid composition may include hydrocarbons having from 12 to 18 carbon atoms. However, in some cases the hydrocarbons of the drilling fluid composition may have from 14 to 16 carbon atoms.
  • the hydrocarbons may either be used directly as drilling fluids or used to alkylate benzene to form alkylated benzenes usable as drilling fluids.
  • a mixture of Benzene and an olefin containing Fischer-Tropsch stream of carbon range 11 to 12 with an olefin benzene molar ratio of 1 :5 was treated with anhydrous aluminium trichloride, 5 mass%, in a round bottomed flask at a temperature range of 60 °C to 80 °C and at atmospheric pressure for 6 hours. Removal of a light fraction at 120 °C and a vacuum of up to 5 mbar and subsequent distillation of the remaining reaction mixture at a temperature of 135 °C and a vacuum of up to 1 mbar gave Cn to C 12 alkylated benzene.
  • Ci6 Fischer-Tropsch ⁇ -olefins were obtained by metathesis and were
  • drilling fluid composition useable as a drilling fluid composition.
  • the drilling fluid composition included about 75% linear ⁇ -olefins and
  • the drilling fluid compositions in accordance with the invention had the following physical properties:
  • the properties are for a typical C 12 -C 16 internal linear and branched
  • ⁇ -olefins useful as drilling fluids include:
  • a drilling fluid including:
  • a linear component making up about 75.1 % of the composition A linear component making up about 75.1 % of the composition.
  • a mono-methyl branched component making up about 24.9% of the drilling fluid composition.
  • a drilling fluid composition including: A linear component of mainly hexadec-1 -ene in amounts of between 2 and 40%, depending on process conditions; and
  • a mono-methyl branched component of between 60% and 98% of the drilling fluid composition is provided.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Lubricants (AREA)

Abstract

The invention provides for the use of Fischer-Tropsch hydrocarbons for the production of alkyl benzenes, detergents and drilling fluids having advantageous branching properties.

Description

ALKYLBENZENES DERIVED FROM FISCHER-TROPSCH HYDROCARBONS AND THEIR USE IN DRILLING FLUIDS
Field of the Invention
The invention relates to the use of Fischer-Tropsch hydrocarbons for the. production of alkyl benzene (AB) and drilling fluid compositions.
Background to the Invention
The Fischer-Tropsch process is a well known process for the production of hydrocarbons from carbon monoxide and hydrogen i.e from syngas.
The prior art, in US 3 674 885, teaches that AB derived from Fischer- Tropsch process products is almost entirely linear as the AB derivation feedstock from the Fischer-Tropsch process comprises of almost entirely linear paraffins and olefins with very small amounts, if any, of branched-chain compounds. In recent years this was believed to be very positive as linear alkyl benzene (LAB) were preferred in the production of bio-degradable detergents.
Summary of the Invention
Surprisingly, after extensive research and experimentation, it has now been found by the inventors that the AB derived from Fischer-Tropsch process products although having substantial branching has acceptable bio- degradability and cold water detergency.
The Fischer-Tropsch reaction for the production of the hydrocarbons, such as olefins, may be effected in a fixed bed, in a slurry bed, or in a fluidised bed reactor. The Fischer-Tropsch reaction conditions may include utilising a reaction temperature of between 190°C and 340°C, with the actual reaction temperature being largely determined by the reactor configuration. Thus, when a fluidised bed reactor is used, the reaction temperature is preferably between 300°C and 340°C; when a fixed bed reactor is used, the reaction temperature is preferably between 200°C and 250°C; and when a slurry bed reaction is used, the reaction temperature is preferably between 190°C and 270°C.
An inlet synthesis gas pressure to the Fischer-Tropsch reactor of between 1 and 50 bar, preferably between 15 and 50 bar, may be used. The synthesis gas may have a H2:CO molar ratio, in the fresh feed, of 1 ,5:1 to 2,5:1 , preferably 1 ,8:1 to 2,2:1. A gas recycle may optionally be employed to the reaction stage, and the ratio of the gas recycle rate to the fresh synthesis gas feed rate, on a molar basis, may then be between 1 :1 and 3:1 , preferably between 1 ,5:1 and 2,5:1. A space velocity, in m3 (kg catalyst)"1 , of from 1 to 20, preferably from 8 to 12, may be utilised in the reaction stage. In principle, an iron-based, a cobalt-based or an iron/cobalt-based Fischer-Tropsch catalyst can be used in the Fischer-Tropsch reaction stage, however, an iron-based catalyst is preferred.
Thus, according to a first aspect of the invention, there is provided an alkyl benzene (AB) composition derived from Fischer-Tropsch process products, said AB composition including from 10% to 90% branched alkyl chain AB, said alkyl chain having branches of from 1 to 2 carbon atoms.
Generally, the AB of the AB composition is predominantly linear.
Typically, the AB composition includes between 10% and 49% branched alkyl chain AB.
The AB composition includes about 25% branched alkyl chain AB.
In most embodiments the branched alkyl chain AB portion of the AB composition is predominantly mono-methyl branched. However, the branched alkyl chain AB portion of the AB composition may include di-methyl and/or ethyl branched alkyl chain AB.
The branching on the alkyl chain of the AB is predominantly on the C4+ carbon atoms, with some branching on the C2 carbon atom of the alkyl chain. Typically, the branching on the alkyl chain of the AB is at least 70% on the C4+ carbon atoms.
The branching on the alkyl chain of the AB may exceed 90% on the C4+ carbon atoms.
The AB of the AB composition may be obtained by alkylation of benzene with Fischer-Tropsch process products.
For purposes of detergent production, the AB composition may include
AB having between 10 and 14 carbon atoms on the alkyl chain. However, in some cases the AB of the AB composition may have up to 16 carbon atoms on the alkyl chain.
The alkylation of the benzene may proceed under conventional or novel process conditions using conventional or novel catalysts. Typical catalysts for alkylation of the benzene include homogeneous Lewis acids including metal halides such as aluminium trichloride, Bronsted acids such as hydrogen fluoride, sulphuric acid, and phosphoric acid, and heterogeneous catalysts such as amorphous and crystalline silica alumina.
Methyl branching on the alkyl side chain leads to the formation of quaternary carbons which decreases biodegradeability. Surprisingly, narrow pore zeolites, such as dealuminated mordenite, offretite and Beta zeolite, give higher selectivity to alkylation towards the end positions of the alkyl chain, typically on the 2-position of the alkyl chain. This leads to a reduction in the amount of quaternary carbons formed after alkylation and hence improves the biodegradation qualities of the product.
The AB composition requires no work up to increase or decrease the linearity and utilises as feedstock for production thereof the products of the Fischer-Tropsch process. Typically, the feedstock is an olefinic product stream from a high temperature Fischer-Tropsch process, although the invention is not limited to any particular Fisher-Tropsch process conditions.
The inventors believe that the direct use of the high temperature
Fischer-Tropsch process products for the derivation of AB has economic advantages over other AB production processes in that the peculiar branched to linear ratios of the high temperature Fischer-Tropsch derived AB, as well as the peculiar branch types and branch positions allow for process steps such as delinearization or linearization to be omitted. Furthermore, the inventors believe that the AB composition of the invention is suitable as a substitute for presently used AB without extensive adjustment of detergent formulations.
According to a second aspect of the invention, there is provided a drilling fluid composition derived from Fischer-Tropsch process products, the
drilling fluid composition including between 10% and 90% branched
hydrocarbons having branches of from 1 to 2 carbon atoms. Generally, the hydrocarbons of the drilling fluid composition are predominantly linear.
Typically, the hydrocarbons of the drilling fluid composition are α-
olefins.
Typically, the drilling fluid composition includes between 10% and 49% branched hydrocarbons.
The drilling fluid composition includes between about 25% branched hydrocarbons.
In most embodiments the branched hydrocarbons portion of the drilling fluid composition is predominantly mono-methyl branched. However, the branched hydrocarbons portion of the drilling fluid composition may include dimethyl and/or ethyl branched hydrocarbons.
The hydrocarbons of the drilling fluid composition may be obtained from high temperature Fischer-Tropsch process products.
For purposes of drilling fluid production, the drilling fluid composition may include hydrocarbons having from 12 to 18 carbon atoms. However, in some cases the hydrocarbons of the drilling fluid composition may have from 14 to 16 carbon atoms. The hydrocarbons may either be used directly as drilling fluids or used to alkylate benzene to form alkylated benzenes usable as drilling fluids.
The inventors believe that the direct use of the high temperature Fischer-Tropsch process products for the derivation of hydrocarbons for drilling fluid compositions has economic advantages over other drilling fluid composition production in that the peculiar branched to linear ratios of the high temperature Fischer-Tropsch derived hydrocarbons as well as the peculiar branch types and branch positions allow for preliminary and intermediate process steps such as delinearization or linearization to be omitted.
EXAMPLES
Example 1 - Alkyl Benzene
Alkylation of benzene with Cn to C12 Fischer-Tropsch olefins.
A mixture of Benzene and an olefin containing Fischer-Tropsch stream of carbon range 11 to 12 with an olefin benzene molar ratio of 1 :5 was treated with anhydrous aluminium trichloride, 5 mass%, in a round bottomed flask at a temperature range of 60 °C to 80 °C and at atmospheric pressure for 6 hours. Removal of a light fraction at 120 °C and a vacuum of up to 5 mbar and subsequent distillation of the remaining reaction mixture at a temperature of 135 °C and a vacuum of up to 1 mbar gave Cn to C12 alkylated benzene.
Example 2
An olefinic C11/C12 Fischer-Tropsch feedstock was used to alkylate benzene to produce alkyl benzenes (AB's) .
For the alkylation of benzene with the Fischer-Tropsch product, 1 mole
of the -olefins, 10 mole of benzene and 10 wt% based on the olefin mixture
of a shape selective Beta - zeolite, amorphous silica, and ultra stable Y- zeolite (USY)catalyst, were added in three separate runs to a stainless steel autoclave. The autoclave was purged with N2 and then charged to 8 bar(g) N2. The mixture was stirred and heated to about 150°C for 16 hours. It was then cooled and removed from the autoclave. The reaction mixture was in
each case filtered to remove the catalyst and the unreacted benzene was
removed in vacuo using a rotary evaporator.
The product was sulfonated with an equivalent of chlorosulfonic acid using methylene chloride as solvent. The methylene chloride was distilled
away. The sulfonated product was neutralized with sodium methoxide in
methanol and the methanol was evaporated to give alkyl benzene sulfonate, sodium salt mixture. The above runs are set out in tables 1 to 4below.
In Table 1 , an olefinic C11/C12 feed is used to alkylate benzene in the presence of the amorphous silica-alumina catalyst for 24 hours. The overall reaction of C11/C12 to AB is 37.6 % of the C11/C12 feed.
In Tables 2, 3 and 4, the olefinic C11/C12 feedstock is reacted in the presence of the three catalyst types with benzene to form alkyl benzene's. An analysis of the AB's to determine the position of the phenyl group on the alkyl chain of the AB's indicates that the 2 position is favoured in all cases, with a marked favouring when beta-zeolite catalyst is used.
Table 1: Alkylation of Benzene with C11/C12 Olefins
Figure imgf000011_0001
Table 2 Alkylation of Benzene with C11/C12 Olefins in the presence of three different catalysts
Figure imgf000011_0002
Table 3: Analysis of C11 Alkyl Benzene produced in the presence of three different catalysts
Figure imgf000011_0003
Table 4: Analysis of C12 Alkyl Benzene produced in the presence of three different catalysts
Figure imgf000012_0001
Example 3 - Drilling Fluids
Ci6 Fischer-Tropsch α-olefins were obtained by metathesis and were
useable as a drilling fluid composition.
The drilling fluid composition included about 75% linear α-olefins and
about 25% branched α-olefins, which α-olefins were predominantly mono-
methyl, di-methyl and ethyl branched.
The drilling fluid compositions in accordance with the invention had the following physical properties:
The properties are for a typical C12-C16 internal linear and branched
combination of olefinic product made in accordance with the present invention: Viscocity: 1 -2 cSt @ 100'C Flash point: >90'C Linear: branch ratio 1 :1 to 5:1 Pour Point: < O'C
Examples of the α-olefins useful as drilling fluids include:
1 ) A drilling fluid including:
A linear component making up about 75.1 % of the composition; and
A mono-methyl branched component making up about 24.9% of the drilling fluid composition.
2) A drilling fluid composition including: A linear component of mainly hexadec-1 -ene in amounts of between 2 and 40%, depending on process conditions; and
A mono-methyl branched component of between 60% and 98% of the drilling fluid composition.

Claims

Claims
1. An alkyl benzene (AB) composition derived from Fischer-Tropsch process products, said AB composition including from 10% to 90% branched alkyl chain AB, said alkyl chain having branches of from 1 to 2 carbon atoms.
2. An alkyl benzene composition as claimed in claim 1 , wherein the alkyl chains of the AB of the AB composition are predominantly linear.
3. An alkyl benzene composition as claimed in claim 1 or claim 2, wherein the AB composition includes between 10% and 49% branched alkyl chain AB.
4. An alkyl benzene composition as claimed in any one of the preceding claims, wherein the AB composition includes 25% branched alkyl chain AB.
5. An alkyl benzene composition as claimed in any one of the preceding claims, wherein the branched alkyl chain AB portion of the AB composition is predominantly mono-methyl branched.
6. An alkyl benzene composition as claimed in any one of the preceding claims, wherein the branched alkyl chain AB portion of the AB composition includes di-methyl and/or ethyl branched alkyl chain AB.
7. An alkyl benzene composition as claimed in any one of the preceding claims, wherein the branching on the alkyl chain of the AB is predominantly on
the C4+ carbon atoms of the alkyl chain.
8. An alkyl benzene composition as claimed in any one of the preceding claims, wherein the branching on the alkyl chain of the AB includes branching on the C2 carbon atom of the alkyl chain.
9. An alkyl benzene composition as claimed in any one of the preceding claims, wherein the branching on the alkyl chain of the AB is at least 70% on the C4+ carbon atoms of the alkyl chain.
10. An alkyl benzene composition as claimed in any one of the preceding claims, wherein the branching on the alkyl chain of the AB is at least 90% on the C4+ carbon atoms of the alkyl chain.
11. An alkyl benzene composition as claimed in any one of the preceding claims, wherein the AB of the AB composition is obtained by alkylation of benzene with Fischer-Tropsch process products.
12. An alkyl benzene composition as claimed in any one of the preceding claims, which includes AB having an alkyl chain of from 10 to 16 carbon atoms.
13. An alkyl benzene composition as claimed in any one of the preceding claims, which includes AB having an alkyl chain of from 10 to 14 carbon atoms.
14. An alkyl benzene composition as claimed in any one of the preceding claims, wherein the phenyl group of the AB is predominantly towards the end positions of the alkyl chain.
15. An alkyl benzene composition as claimed in any one of the preceding claims, wherein the phenyl group of the AB is predominantly in the second position of the alkyl chain.
16. An alkyl benzene composition as claimed in any one of the preceding claims, wherein the feedstock for the production of the alkyl chain is an olefininc product stream from a high temperature Fischer-Tropsch process.
17. A drilling fluid composition derived from Fischer-Tropsch process products, the drilling fluid composition including between 10% and 90% branched hydrocarbons having branches of from 1 to 2 carbon atoms.
18. A drilling fluid composition as claimed in claim 17, wherein the hydrocarbons of the drilling fluid composition are predominantly linear.
19. A drilling fluid composition as claimed in claim 17 or 18, wherein the
hydrocarbons of the drilling fluid composition are predominantly α-olefins.
20. A drilling fluid composition as claimed in any one of claims 17 to 19, which includes between 10% and 49% branched hydrocarbons.
21. A drilling fluid composition as claimed in any one of claims 17 to 19, which includes 25% branched hydrocarbons.
22. A drilling fluid composition as claimed in any one of claims 17 to 21, wherein the branched hydrocarbons of the drilling fluid composition are predominantly mono-methyl branched.
23. A drilling fluid composition as claimed in any one of claims 17 to 22, wherein the branched hydrocarbons of the drilling fluid composition include dimethyl and/or ethyl branched hydrocarbons.
24. A drilling fluid composition as claimed in any one of claims 17 to 23, wherein the hydrocarbons are obtained from high temperature Fischer- Tropsch process products.
25. A drilling fluid composition as claimed in any one of claims 17 to 24, which includes hydrocarbons having from 12 to 18 carbon atoms.
26. A drilling fluid composition as claimed in any one of claims 17 to 24, which includes hydrocarbons having from 14 to 16 carbon atoms.
27. A drilling fluid composition as claimed in any one of claims 17 to 26, wherein the hydrocarbons are used to alkylate benzene to form alkylated benzenes usable as drilling fluids.
28. An alkyl benzene composition, substantially as herein described and illustrated.
29. A drilling fluid composition, substantially as herein described and illustrated.
30. A new alkyl benzene composition or a new drilling fluid composition, substantially as herein described and illustrated.
PCT/ZA2000/000119 1999-07-06 2000-07-06 Alkylbenzenes derived from fischer-tropsch hydrocarbons and their use in drilling fluids Ceased WO2001002325A1 (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001064610A1 (en) * 2000-02-29 2001-09-07 Chevron U.S.A. Inc. Synthesis of alkylbenzenes and synlubes from fischer-tropsch products
GB2399571A (en) * 2001-10-19 2004-09-22 Chevron Usa Inc Distillate fuel blend containing alkylaromatics and alkylcycloparaffins
US6890423B2 (en) 2001-10-19 2005-05-10 Chevron U.S.A. Inc. Distillate fuel blends from Fischer Tropsch products with improved seal swell properties
FR2866645A1 (en) * 2004-02-19 2005-08-26 Inst Francais Du Petrole PROCESS FOR PRODUCING PHENYLALCANES USING HYDROCARBON CUT FROM THE FISCHER-TROPSCH PROCESS
WO2005001002A3 (en) * 2003-06-19 2005-12-15 Chevron Usa Inc Stable, moderately unsaturated distillate fuel blend stocks prepared by low pressure hydroprocessing of fischer-tropsch products
US7311815B2 (en) 2003-02-20 2007-12-25 Syntroleum Corporation Hydrocarbon products and methods of preparing hydrocarbon products
US7465846B2 (en) 2003-03-10 2008-12-16 Sasol Technology (Proprietary) Limited Extraction of oxygenates from a hydrocarbon stream
US7737312B2 (en) 2003-03-10 2010-06-15 Sasol Technology (Proprietary) Limited Production of linear alkyl benzene
US7863492B2 (en) 2003-03-10 2011-01-04 Sasol Technology (Proprietary) Limited Production of linear alkyl benzene

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB990744A (en) * 1960-12-30 1965-04-28 Universal Oil Prod Co Process for producing an alkylaryl compound suitable for the preparation of biologically soft detergent
US3674885A (en) * 1970-10-09 1972-07-04 Atlantic Richfield Co Alkylation of benzene utilizing fischer-tropsch olefin-paraffin mixtures

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB990744A (en) * 1960-12-30 1965-04-28 Universal Oil Prod Co Process for producing an alkylaryl compound suitable for the preparation of biologically soft detergent
US3674885A (en) * 1970-10-09 1972-07-04 Atlantic Richfield Co Alkylation of benzene utilizing fischer-tropsch olefin-paraffin mixtures

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1017470C2 (en) * 2000-02-29 2002-02-18 Chevron Usa Inc Synthesis of alkylbenzenes and synlubes from Fischer-Tropsch products.
WO2001064610A1 (en) * 2000-02-29 2001-09-07 Chevron U.S.A. Inc. Synthesis of alkylbenzenes and synlubes from fischer-tropsch products
GB2399571A (en) * 2001-10-19 2004-09-22 Chevron Usa Inc Distillate fuel blend containing alkylaromatics and alkylcycloparaffins
GB2399571B (en) * 2001-10-19 2005-04-06 Chevron Usa Inc Distillate fuel blends from Fischer-Tropsch products with improved seal swell properties
US6890423B2 (en) 2001-10-19 2005-05-10 Chevron U.S.A. Inc. Distillate fuel blends from Fischer Tropsch products with improved seal swell properties
GB2384247B (en) * 2001-10-19 2005-05-11 Chevron Usa Inc Distillate fuel blends from fischer-tropsch products with improved seal swell properties
US7608181B2 (en) 2001-10-19 2009-10-27 Chevron U.S.A. Inc. Distillate fuel blends from Fischer Tropsch products with improved seal swell properties
US7311815B2 (en) 2003-02-20 2007-12-25 Syntroleum Corporation Hydrocarbon products and methods of preparing hydrocarbon products
US7465846B2 (en) 2003-03-10 2008-12-16 Sasol Technology (Proprietary) Limited Extraction of oxygenates from a hydrocarbon stream
US7737312B2 (en) 2003-03-10 2010-06-15 Sasol Technology (Proprietary) Limited Production of linear alkyl benzene
US7863492B2 (en) 2003-03-10 2011-01-04 Sasol Technology (Proprietary) Limited Production of linear alkyl benzene
GB2421512A (en) * 2003-06-19 2006-06-28 Chevron Usa Inc Stable, moderately unsaturated distillate fuel blend stocks prepared by low pressure hydroprocessing of Fischer-Tropch products
WO2005001002A3 (en) * 2003-06-19 2005-12-15 Chevron Usa Inc Stable, moderately unsaturated distillate fuel blend stocks prepared by low pressure hydroprocessing of fischer-tropsch products
GB2421512B (en) * 2003-06-19 2008-10-29 Chevron Usa Inc Stable, moderately unsaturated distillate fuel blend stocks prepared by low pressure hydroprocessing of Fischer-Tropch products
CN100465251C (en) * 2003-06-19 2009-03-04 切夫里昂美国公司 Stable, Moderately Unsaturated Distillate Fuel Blending Feedstock Produced by Low-Pressure Hydroprocessing of Fischer-Tropsch Products
EP1568675A1 (en) * 2004-02-19 2005-08-31 Institut Français du Pétrole Process for making phenylalcanes using a hydrocarbon fraction coming from the Fischer-Tropsch process.
FR2866645A1 (en) * 2004-02-19 2005-08-26 Inst Francais Du Petrole PROCESS FOR PRODUCING PHENYLALCANES USING HYDROCARBON CUT FROM THE FISCHER-TROPSCH PROCESS

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