JPH111690A - Equipment for processing gas turbine fuel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide equipment for processing gas turbine fuel, wherein a heat transfer system is employed, without using a distillation tower comprising a tall tank, to thereby make the equipment compact. SOLUTION: A heavy oil feedstock (a) from a raw material tank 1 is heated in a heating exchanger 3, and charged into a gas-liquid separator 11, wherein a light fraction (b) is vaporized and separated from a residual heavy fraction (c). The residual heavy fraction (c) enters heat transfer tubes 12 below the gas-liquid separator 11. The heat transfer tubes 12 are given heat by a heat source fluid (f) in a heating unit 14 and serve to heat the heavy fraction (c) and vaporize the light fraction (b). The bubbles of the light fraction (b) ascend, are taken out from the upper part, and pass through a mist separator 8, a cooler 9 and a light fraction tank 10, from which the light fraction is fed into light fraction consuming installations 61, i.e., a gas turbine fuel system. A part of the heavy fraction (c) is taken out from a descending liquid line 22 through the lower part of the gas-liquid separator 11 and fed as an outgoing heavy fraction (d) into heavy fraction consuming installations 62.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas turbine fuel treatment system, which is a gas turbine fuel treatment system in which the equipment is reduced in size without using a high distillation column.

[0002]

2. Description of the Related Art FIG. 7 is a system diagram of a conventional atmospheric distillation apparatus using a simple topping method. In the figure, a heavy oil 41 as a raw material is heated in a heating furnace 42, elevates the temperature and evaporates, and is supplied with latent heat and sensible heat and flows into a lower portion of a distillation column 43.
The distillation column 43 has a multi-story structure with a high tank, and has a top circulation flow path 45 at the top, and the inflowing material is evaporated and vaporized in each of the plates to sequentially raise light components, Minutes fall down. By such an operation, the raw material is divided into a light component and a heavy component.

[0003] The distillation column 43 is provided with an upper overhead circulation reflux system 4.
5, the light component evaporated to the upper part by the pump 44 is circulated to regulate the temperature.
The optimum number of shelves is determined by the combination with 5, and the combination of both adjusts the light weight to the required specification.

Lights from the upper part of the distillation column 43 are supplied to a cooler 46.
And stored in the receiving tank 47, sent to the consuming equipment 61, and by the pump 48 as necessary.
9 is supplied to the consuming equipment 61 from the backup line 63 when the demand from the consuming equipment 61 is large and the supply from the production line is insufficient to satisfy the demand.

On the other hand, the heavy components fall to the lower part of the distillation column 43, where they pass through the stripping steam 50 to re-evaporate the light components, and the remaining heavy components are pumped by the heat exchanger 52 and cooled by the pump 51. It is sent to the vessel 53, cooled and sent to the heavy consumption facility 62.

FIGS. 8A and 8B are structural views of the inside of the distillation column described above, wherein FIG. 8A is a longitudinal sectional view of the inside, and FIG. 8B is a transverse sectional view. As shown in FIG. 8 (b), a plurality of perforated plates 70 having a large number of holes at the center are arranged inside, and as shown in FIG. A downcomer 71 is provided which connects to 70. The downcomers 71 are provided on the left and right sides alternately from top to bottom.

In the distillation column 43 having the above-described structure, the vapor of the raw material that flows in rises through a large number of holes in the perforated plate 70 and flows into the next upper space, then rises to the next stage and evaporates upward. Eventually, heavy components fall down from the downcomer 71 from above, flow to the opposite side on the perforated plate 70, and fall down sequentially from the next downcomer 71. The rising steam is perforated plate 70
The air flows through the layer of the heavy component flowing to the upper surface from the large number of holes as bubbles, and the heavy component liquefied in this process is put in the layer and rises sequentially to the upper portion. Only steam will be separated.

[0008]

The conventional simple topping method atmospheric distillation column described above is the most common distillation system currently used, but has the following points to be improved.

(1) The distillation column 43 has a shelf composed of a large number of perforated plates 70, and is large and large.

(2) When starting the distillation apparatus, a warming time of several hours is required, and DSS (Daily Star) is required.
t and Stop).

(3) Distillation equipment is heavy equipment consuming equipment 62
It is operated under the rate of consumption of heavy fractions, and if the light fraction is excessive, it is stored in the light oil storage tank 49, and if it is insufficient, it is paid out from the storage tank 49 and adjusted. The function requires considerable equipment.

(4) The operation load of the distillation column is 35 to 100% for a column using a perforated plate, and preferably 50% or more, while the amount of circulating mass in the distillation column is 80%, and the amount discharged is 20%. %, And the fractionated fraction becomes larger than the required light fraction.

Therefore, in the present invention, the apparatus is reduced in size by the heat transfer evaporation method without using a high distillation column as in the conventional distillation apparatus, and has a compact structure which can be operated mainly for the consumption of light oil. It is an object of the present invention to provide a gas turbine fuel processor that can be used by directly connecting to a turbine fuel supply system.

Further, in the present invention, the arrangement of the heating tubes is devised by adopting a heat transfer evaporation method, the raw material is flowed in a shelf system and efficiently heated by the heating tubes, and the light and heavy components are separated. It is also a basic object to provide a gas turbine fuel supply device in which a device that can be separated is made compact.

[0015]

The present invention provides the following means (1) to (3) in order to solve the above-mentioned problems.

(1) means for pressurizing and heating the raw material heavy oil; the raw material from the pressurizing and heating means is charged, and a part of the raw material is vaporized to a light component, and the light component and the remaining heavy component A gas-liquid separator that separates the liquid and the liquid;
A heat transfer tube for guiding the heavy component separated by the gas-liquid separator and heating it to evaporate the light component; a heating vessel for covering the heat transfer tube and flowing a heat source fluid to heat the heat transfer tube; A gas turbine fuel comprising: a tank for guiding the light components from an upper portion of a gas-liquid separator, storing the light components after cooling, and a means for extracting the heavy component from a lower portion of the gas-liquid separator. Processing equipment.

(2) means for pressurizing and heating the raw material heavy oil; the raw material from the pressurizing and heating means is charged, and a part of the raw material is vaporized to a light component, and the light component and the remaining heavy component A gas-liquid separator that separates into two parts; a heating vessel through which the heating fluid flows from the lower part to the upper part; an inclined surface that keeps a predetermined space in the heating vessel; And a plurality of tray stages for sequentially communicating between the respective stages and for allowing the remaining heavy components from the gas-liquid separator to flow down sequentially; and a plurality of tray stages which are vertically penetrated through the respective shelf stages, and A plurality of heat transfer tubes which flow from the lower part to the upper part of the plurality of trays and heat the remaining heavy part which flows down; and a tank which guides the light part from the upper part of the gas-liquid separator, cools and stores the light part; Means for extracting the heavy components from the lower part of the gas-liquid separator. -Bin fuel processor.

(3) The gas turbine fuel processor according to (2), wherein the heating fluid flows a light component vaporized from a gas-liquid separator from a lower portion of the heating vessel and circulates.

In (1) of the present invention, the raw material heavy oil is pressurized by a pump or the like by a pressurizing and heating means and then charged into a gas-liquid separator. In the gas-liquid separator, light components are separated by flashing vaporization at the time of injection, and the light components are taken out from the upper part of the gas-liquid separator, stored in a tank, and supplied from the tank to a fuel supply system of a gas turbine. On the other hand, the remaining heavy components enter the heat transfer tubes from the lower part of the gas-liquid separator, and the heat transfer tubes are heated by the heat source fluid of the heating equipment. Therefore, the remaining heavy components are heated to vaporize the light components. The vaporized light component rises as bubbles in the heat transfer tube, and is led to the tank together with the light component separated by the gas-liquid separator. In addition, the heavy components are discharged from the gas-liquid separator by the heavy component extracting means.

In (1) of the present invention, any heat source fluid can be used as the heat source fluid, either steam or furnace exhaust, by the heat transfer tube evaporation method without using the conventional high tank and multi-stage distillation column as described above. In addition, since heat input can be applied collectively, the size and size of the apparatus can be reduced.

In the method (2) of the present invention, the raw material is charged into the gas-liquid separator by the same pressurizing and heating means, and the charged raw material is separated into light components by flashing vaporization in the gas-liquid separator. Is taken out from the upper part of the gas-liquid separator, stored in the tank, and supplied from the tank to the fuel supply system of the gas turbine. A part of the remaining heavy matter from the gas-liquid separator flows into the trays, flows down the respective trays, and is heated by the heat transfer tubes in the course of the falling to evaporate the lighter components sequentially. The light fraction passes through the space of each shelf, enters the gas-liquid separator, and is taken out to the tank together with the light fraction separated by the gas-liquid separator. The heavy fraction is taken out from the end of the shelf as the heavy fraction to be discharged by the heavy fraction extraction means.

In the invention of the above (2), since the remaining heavy components are flowed in a tray system and heated by the heat transfer tube, the light components and the heavy components can be efficiently separated. At the same time, heat input can be performed collectively as in the invention of (1), and a small and compact device can be obtained.

In the method (3) of the present invention, the heat source fluid is extracted and circulated by extracting a part of the light portion, and the light portion vaporized from the remaining heavy portion is circulated and used, so that another heat source fluid is unnecessary. Thus, the device can be made compact.

[0024]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a configuration diagram of a gas turbine fuel processing facility according to a first embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a raw material tank, and a raw material a
2 is a transfer pump for pumping the raw material a, and 3 is a heating heat exchanger for preheating the raw material a. Reference numeral 11 denotes a gas-liquid separator, into which a raw material a is charged, and which is separated into a light component b and a residual heavy component c. Reference numeral 12 denotes a heat transfer tube communicating with a lower portion of the gas-liquid separator 11;
Reference numeral 3 denotes a header, which communicates the heat transfer tube 12 at a lower portion. Numeral 14 denotes a heating facility which accommodates a heat transfer tube and heats it with a heat source fluid f.

Reference numeral 8 denotes a mist separator connected to the upper part of the gas-liquid separator 11, reference numeral 9 denotes a cooler, and reference numeral 10 denotes a light fraction tank. The stored light fraction is supplied to a light fraction consuming facility 61, that is, a gas turbine fuel supply system. Supply. Reference numeral 22 denotes a liquid descending line which supplies the heavy fraction d separated by the gas-liquid separator 11 to the heavy fraction consuming equipment 62 through the valve 51 by the circulation pump 15,
The heavy component d is returned to the header 13 through the valve 52.

In the first embodiment of the above construction, the heavy oil a as the raw material is pressurized by the transfer pump 2 from the raw material tank 1, preheated by the heating heat exchanger 3, and charged into the gas-liquid separator 11. . In the gas-liquid separator 11, when the raw material a is charged, the light component b is separated by the flashing vaporization at that time, and the remaining heavy component c accumulates in the lower part of the gas-liquid separator 11, and the electric power communicates with the lower part. Fill the heat tube 12.

Since the heat transfer tube 12 is heated by the heat source fluid f flowing in the heating equipment 14, the remaining heavy portion c inside is heated, and the light portion b is further vaporized from the remaining heavy portion c. The portion b becomes bubbles and rises in the heat transfer tube 12 and accumulates in the upper part of the gas-liquid separator 11.

The light portion b from the upper part of the gas-liquid separator 11 enters the mist separator 8, where the mist is removed, enters the cooler 9, is cooled and enters the light portion tank 10, and the liquid light portion h
Stored as The stored liquid light component h is supplied to the light component consuming equipment 61, that is, the gas turbine fuel supply system.

On the other hand, a part of the heavy fraction c separated by the gas-liquid separator 11 is transported from the lower part of the gas-liquid separator 11 by the circulation pump 15 of the liquid descending line 22, and discharged through the valve 51. It is supplied to the heavy component consuming equipment 62 as d.
Further, by closing the valve 51 and opening the valve 52, the gas is supplied from the lower part of the gas-liquid separator 11 to the header 13,
It can also promote circulation.

According to the gas turbine fuel processor of the first embodiment described above, the remaining heavy components separated by the gas-liquid separator 11 are indirectly heated in the heat transfer pipe 12 by the heat source fluid f. , Any fluid (steam, furnace exhaust,
Etc.) are available.

Further, in the portion where the heat transfer tube is used as the heating equipment, the heating is individually performed, and in FIG. 7, the heat is input by the stripping steam 50. In the first embodiment, Since heat is input collectively with the heat source fluid f by the heating equipment 14 accommodating the plurality of heat transfer tubes 12, the equipment can be made compact. Further, this apparatus can cope with either a forced circulation system or a monotube system (non-circulation system).

FIG. 2 is a configuration diagram of a gas turbine fuel processor according to a second embodiment of the present invention. In FIG.
1 is a raw material tank, 2 is a transfer pump, and the raw material a is supplied to the header 13 from the lower part of the heating equipment 14. 2
Reference numeral 1 denotes a gas-liquid separator, in which a mist separator 18 and a mist catch element 23 are integrated. Other configurations are the same as those of the first embodiment shown in FIG.

In the gas turbine fuel processor of the second embodiment having the above-described structure, the raw material a is supplied from the raw material tank 1 to the header 13 by the transfer pump 2 and enters the heat transfer pipe 12 where it is heated by the heat of the heat source fluid f. Then, the light component b is vaporized. The light component b rises as bubbles in the heat transfer tube 12 and stays in the upper part of the gas-liquid separator 21.

The light component b from the upper part of the gas-liquid separator 21 is:
The mist contained in the light component b is removed by the mist catch element into the mist separator 18 communicating with the upper part of the gas-liquid separator 21, cooled by the cooler 9, enters the light component tank 10, Stored in minutes h. The stored liquid light component h is supplied to the light component consuming equipment 61, that is, the gas turbine fuel supply system.

On the other hand, a part of the heavy fraction c separated by the gas-liquid separator 21 is discharged from the lower part of the gas-liquid separator 21 by the circulation pump 15 and supplied to the heavy fraction consuming equipment 62 as the heavy fraction d. Is done.

According to the gas turbine fuel processor of the second embodiment, the raw material a is supplied to the header 13, the heating is performed by the heat transfer tube 12, and the heavy liquid is removed by eliminating the liquid descending line 22 shown in FIG. The material is made into a one-sewer system from the bottom to the top without recirculation, and the mist separator 18 and the mist catch element 23 are integrated with the gas-liquid separator 21 to achieve compactness. . Of course, in addition to the above effects, the same effects as those of the first embodiment can be obtained.

FIG. 3 is a configuration diagram of a gas turbine fuel processor according to a third embodiment of the present invention. In the third embodiment, a plurality of heat transfer tubes are vertically arranged on a shelf in the heating equipment to heat a heavy component.

In FIG. 3, reference numeral 31 denotes a gas-liquid separator;
A weir 37 is provided as a flow path, and the heating equipment 34 is provided by the flow path.
Are provided in communication. Top plate 3 in heating equipment 34
9 and a bottom plate 40 are provided with a space having an inclination angle α, the space is inclined from the inlet side of the gas-liquid separator 31, and a vertical passage is formed by a head plate 38 on the side surface of the heating equipment to form a vertical passage. It communicates downward from the vertical passage.

Below this, a top plate 39 and a bottom plate 40 are similarly arranged at an inclination angle α toward the opposite side surface so as to form a space. Constitute a vertical passage, and form a shelf that communicates sequentially with the lower stage. At the entrance of the vertical passage formed by the end plate 38, a multistage weir 36 is provided.

A number of heat transfer tubes 32 are arranged vertically and parallel between the top plate 39 and the bottom plate 40 of each shelf, and communicate between the upper and lower shelf. Reference numeral 41 denotes a payout chamber, which is provided at the last outlet at the bottom of the heating equipment 34 in the space formed by the top plate 39 and the bottom plate 40. The heat source fluid f flows from below into the space between each of the shelves thus formed, passes through a number of heat transfer tubes 32, and sequentially flows into the space of the upper shelves,
It flows out from the upper part of the heating equipment 34. Further, the remaining heavy component c flows out over the weir 37 and flows downward in the space formed by the top plate 39 and the bottom plate 40.

FIG. 4 is a detailed sectional view of a shelf formed by the top plate 39, the bottom plate 40, and the end plate 38 in the third embodiment described above. In FIG. 4, the top plate 39 is provided as described above.
A number of heat transfer tubes 32 are disposed between the heat transfer tubes 32 and the bottom plate 40, and the periphery of the heat transfer tubes 32 is immersed in the remaining heavy component c flowing from the upstream side in the space, and the heavy component c is formed by the end plate 38. Flows down through the vertical passage.

The heat source fluid f is supplied from the lower part of the heating equipment 34, flows from the bottom plate 40 through the heat transfer tubes 32, and flows above the top plate 39. At this time, the remaining heavy component c flowing around the heat transfer tubes 32 is Both the heat transfer f ₁ + f ₂ , the bottom plate heat transfer f ₂ and the heat transfer tube heat transfer f ₁ , are performed by the heat source fluid, and flow through the flow path which is heated and formed sequentially at the inclination angle α.

In this process, the heavy component c is sequentially heated in each shelf, and the light component b is vaporized from the remaining heavy component c, and passes through the space between the top plate 39 and the bottom plate 40 as air bubbles.
The gas sequentially flows to the upstream side and gathers in the gas-liquid separator 31 on the upstream side. On the other hand, the remaining heavy fraction c in which the light fraction b is vaporized flows sequentially to the lower stage due to the inclination of each shelf, is taken out from the dispensing chamber 41 of the lowest shelf as the discharged heavy fraction, and supplied to the heavy fraction consuming equipment 62. Is done.

FIG. 5 is a perspective view of the heating equipment according to the third embodiment described above. As shown in FIG.
There is a top plate 39 inside, a bottom plate 40 is arranged below the bottom plate 40 to form a space, and a number of heat transfer tubes 32 are vertically arranged between the top plate 39 and the bottom plate 40 to form a shelf layer <1>. This layer <1> is configured to communicate with the lower shelf <2> in a vertical passage formed by the end plate 38.

The heavy component c from the gas-liquid separator 31 flows into the upper layer <1> from the weir 17 and comes into contact with the periphery of the heat transfer tube 32 in the layer <1> as shown by oblique lines. While being heated, it flows into the lower layer <2> through the vertical passage formed by the end plate 38, and flows out sequentially to the lower layer.

FIG. 6 is a configuration diagram of a gas turbine fuel processor according to a fourth embodiment of the present invention. The fourth embodiment is different from the third embodiment shown in FIGS.
Skip 9, it makes a heat transfer pipe 32 disposed on the bottom plate 40, further, instead of the heat source fluid f, to extract a portion of the b ₁ of vaporized light fractions b, and heat is heated by the heating heat exchanger 3 supplemented, circulation use is for extraction utilized in conjunction with the light fraction b ₂ vaporized in the trays. Except for the above, the third embodiment is the same as the third embodiment shown in FIGS.

According to the gas turbine fuel processors of the third and fourth embodiments described above, a shelf is formed in the heating equipment 34 by the top plate 39 and the bottom plate 40, and each shelf is a head plate 39.
In this case, the heat source fluid and the raw material are indirectly heated as in the first and second embodiments, so that the heat source fluid is arbitrary. (Steam, furnace exhaust, etc.) can be used, and heat input for heating can be applied collectively.

[0048]

The present invention relates to (1) a means for pressurizing and heating heavy oil as a raw material; a raw material from the pressurizing and heating means is charged, and a part of the raw material is vaporized into light components. A gas-liquid separator for separating light and residual heavy components; communicating with the lower part of the gas-liquid separator, guiding the heavy components separated by the gas-liquid separator, heating and evaporating the light components A heat transfer tube that covers the heat transfer tube and heats the heat transfer tube by flowing a heat source fluid; and a tank that guides the light components from above the gas-liquid separator, stores the light component after cooling, and stores the light component. Means for extracting the heavy components from the lower part of the gas-liquid separator. With such a configuration, without using a conventional high tank, multi-stage distillation tower, any heat source fluid can be used as the heat source fluid by steam or furnace exhaust without using a heat transfer tube evaporation method,
In addition, since heat input can be applied collectively, the size and size of the apparatus can be reduced.

(2) of the present invention is a means for pressurizing and heating the heavy oil as a raw material; the raw material from the pressurizing and heating means is charged, and a part of the raw material is vaporized to a light component, Gas-liquid separator that separates the remaining fluid into heavy and heavy components; a heating container through which the heating fluid flows from the lower part to the upper part; a slope having a predetermined space in the heating container; And a plurality of tray stages for sequentially communicating between the stages and successively flowing down the remaining heavy components from the gas-liquid separator; and being vertically penetrated through the respective shelf stages. A plurality of heat transfer tubes for flowing the heating fluid from the lower portion to the upper portion of the plurality of shelves and heating the remaining heavy portion flowing down; and guiding the light portion from the upper portion of the gas-liquid separator and cooling the same. A storage tank; and means for extracting the heavy components from the lower part of the gas-liquid separator. It is. With such a configuration, the remaining heavy components are flowed in a tray system and heated by the heat transfer tubes, so that the light components and the heavy components can be efficiently separated, and the invention of (1). The heat input can be performed collectively as in the above, and a small and compact device can be obtained.

According to a third aspect of the present invention, in the first aspect of the present invention, the heating fluid is such that a light component vaporized from a gas-liquid separator flows from a lower portion of the heating vessel and is circulated. With such a configuration, the heat source fluid is extracted and circulated for a part of the light component, and the light component vaporized from the remaining heavy component is circulated and used. Can be put together.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a gas turbine fuel processing device according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a gas turbine fuel processor according to a second embodiment of the present invention.

FIG. 3 is a configuration diagram of a gas turbine fuel processing device according to a third embodiment of the present invention.

FIG. 4 is a detailed view of a shelf in a gas turbine fuel processor according to a third embodiment of the present invention, showing a state of heat transfer to a raw material.

FIG. 5 is a perspective view showing a flow state of heating equipment in a gas turbine fuel processor according to a third embodiment of the present invention.

FIG. 6 is a configuration diagram of a gas turbine fuel processor according to a fourth embodiment of the present invention.

FIG. 7 is a system diagram of a conventional atmospheric distillation apparatus using a simple topping method.

8A and 8B show a configuration inside a distillation column of a conventional atmospheric distillation apparatus, wherein FIG. 8A is a longitudinal sectional view, and FIG. 8B is a view taken along the line XX of FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 raw material tank 2 transfer pump 3 heating heat exchanger 8 mist separator 9 cooler 10 light fractionation tank 11, 21, 31 gas-liquid separator 12, 32 heat transfer tube 13 header 14, 34 heating equipment 15 circulation pump 22 liquid descending line 23 Mist catch element 36, 37 Weir 38 End plate 39 Top plate 40 Bottom plate 41 Dispensing room

Claims (3)

[Claims] 1. A means for pressurizing and heating a heavy oil as a raw material; a raw material from the pressurizing and heating means is supplied, and a part of the raw material is vaporized into a light component, and the light component and the residual heavy component are A gas-liquid separator which is separated into a gas-liquid separator and a heat transfer tube which communicates with a lower portion of the gas-liquid separator and guides heavy components separated by the gas-liquid separator, and heats and evaporates light components; A heating vessel that covers the periphery of the heat transfer pipe and heats the heat transfer tube by flowing a heat source fluid; a tank that guides the light components from an upper portion of the gas-liquid separator, stores the light component after cooling, and a lower portion of the gas-liquid separator. Means for removing the heavy components. 2. A means for pressurizing and heating the heavy oil as a raw material; a raw material from the pressurizing and heating means is supplied, and a part of the raw material is vaporized to a light fraction, and the light fraction and the residual heavy fraction A heating-liquid container through which a heating fluid flows from the lower part to the upper part; and a slope having a predetermined space in the heating container and arranged in multiple stages from the top to the bottom. A plurality of shelves for successively communicating between the respective stages and for allowing the remaining heavy components from the gas-liquid separator to flow down sequentially; and A plurality of heat transfer tubes that flow from the lower part of the plurality of trays to the upper part and heat the remaining heavy part that flows down; a tank that guides the light part from an upper part of the gas-liquid separator, stores the light part after cooling, and Means for taking out the heavy components from the lower part of the gas-liquid separator. Fuel processor. 3. The gas turbine fuel processing apparatus according to claim 2, wherein the heating fluid flows a light component vaporized from a gas-liquid separator from a lower portion of the heating vessel and circulates the light component.