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CN1566289A - Production process for lignin alcohol fuel - Google Patents

Production process for lignin alcohol fuel Download PDF

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Publication number
CN1566289A
CN1566289A CN 03134347 CN03134347A CN1566289A CN 1566289 A CN1566289 A CN 1566289A CN 03134347 CN03134347 CN 03134347 CN 03134347 A CN03134347 A CN 03134347A CN 1566289 A CN1566289 A CN 1566289A
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CN
China
Prior art keywords
liquid
ethanol
lignin
pulping
raffinate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 03134347
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Chinese (zh)
Inventor
陈海峰
张美云
李新平
张勇
徐永建
王建梅
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Shaanxi University of Science and Technology
Original Assignee
Shaanxi University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shaanxi University of Science and Technology filed Critical Shaanxi University of Science and Technology
Priority to CN 03134347 priority Critical patent/CN1566289A/en
Publication of CN1566289A publication Critical patent/CN1566289A/en
Pending legal-status Critical Current

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Abstract

本发明涉及一种木素醇燃料制造工艺,尤其涉及一种用乙醇法造纸制浆所得蒸煮残液为主要原料,制作木素醇这种液体清洁燃料的工艺。该发明解决了以往乙醇法制浆蒸煮残液处理过程中,存在的乙醇回收能量消耗高、副产品木质素的高效利用技术尚不成熟等问题,促进制浆企业经济效益的进一步提高,并对缓解矿物能源日趋紧缺的局面有帮助,因而具有良好的社会效益和经济效益。The invention relates to a lignin alcohol fuel manufacturing process, in particular to a process for producing lignin alcohol as a liquid clean fuel by using the cooking raffinate obtained from ethanol papermaking and pulping as the main raw material. The invention solves the problems of high energy consumption of ethanol recovery and immature technology of high-efficiency utilization of by-product lignin in the process of processing raffinate of ethanol pulping in the past, and promotes the further improvement of the economic benefits of pulping enterprises, and alleviates the The situation of increasing shortage of mineral energy is helpful, so it has good social and economic benefits.

Description

The lignin alcohol fuel manufacturing operation
One, affiliated technical field
The present invention relates to a kind of lignin alcohol fuel manufacturing operation, relating in particular to a kind of is main raw material with Ethanol Method paper-making pulping gained boiling raffinate, makes a kind of technology of liquid cleaning fuel.Belong to the pulping technology for paper-making field.
Two, background technology
The ethanol pulping technology is considered to one of clean paper making pulping technique of potentialization.Yet this technology will use a large amount of aqueous ethanolic solutions to dissolve organic substances such as xylogen in the fibrous material, when carrying out fiber separation, produces a large amount of pulping and digesting raffinates.Exist the ethanol recovered energy to consume problems such as efficient technique of rainwater utilization high, the byproduct xylogen is still immature in the boiling raffinate treating processes in the past, influenced the further raising of slurrying business economic benefit.
Three, summary of the invention
Consume problems such as efficient technique of rainwater utilization high, the byproduct xylogen is still immature in order to solve the ethanol recovered energy that exists in the ethanol pulping boiling raffinate treating processes, the invention provides one and apply mechanically the pulping and digesting raffinate as main raw material, make a kind of novel clean fuel liquid that is called lignin alcohol, no longer carry out the lock out operation of alcoholic acid recovery and xylogen.Can effectively improve the ethanol pulping economic benefit of enterprises.
The present invention solves the technology that its technical problem adopts: the Ethanol Method paper-making pulping raffinate (temperature is at 75~200 ℃) in the storage tank is pumped in the settler, and add CaO or Ca (HO) 2, make the liquid pH value between 6.5~8; Add 3~35% (in liquid mass) xylogen or alkali lignins again, and an amount of additive and stirring fully, be incubated 20~60 minutes, make the acetate neutralization in the raw material and generate lime acetate; Then, it is cooled to room temperature, left standstill 12~48 hours, make most of insoluble substance precipitation and separation; At last clear liquid is filtered or centrifugation, remove trickle solid matters such as wherein contained lime acetate, fiber fines and dust, the gained homogeneous liquid is the liquid lignin alcohol fuel of cleaning.
The invention has the beneficial effects as follows: the ethanol pulping raffinate changes into New-type fuel through processing, can realize the comprehensive utilization of fibrous material; And need not reclaim ethanol, energy expenditure is low; Simplify technological process and equipment, reduced the slurrying production cost, helpful to alleviating fossil energy situation in short supply day by day, thereby have good social benefit and economic benefit.
Four, embodiment
Ethanol Method paper-making pulping raffinate (temperature is at 75~200 ℃) in the storage tank is pumped in the settler, and add CaO or Ca (HO) 2, make the liquid pH value between 6.5~7.5; Add 3~35% (in liquid mass) xylogen and an amount of additive and stirring fully again, be incubated 20~60 minutes, make the acetate neutralization in the raw material and generate lime acetate; Then, it is cooled to room temperature, left standstill 12~48 hours, make most of insoluble substance precipitation and separation; At last clear liquid is filtered, remove trickle solid matters such as wherein contained lime acetate, fiber fines and dust, the gained homogeneous liquid is the lignin alcohol liquid fuel of cleaning.

Claims (2)

1、一种用乙醇法制浆蒸煮残液作为主要原料,制造液体木素醇燃料的方法,其特征是:1. A method of making liquid lignin alcohol fuel with ethanol pulping and cooking raffinate as main raw material, characterized in that: a:给乙醇法造纸制浆残液(温度在75~200℃)中加入CaO或Ca(HO)2,或者是二者的混合物,使液体中的乙酸中和并生成乙酸钙,保持液体PH值在6.5~8之间;a: Add CaO or Ca(HO) 2 , or a mixture of the two, to the ethanol paper pulping raffinate (temperature 75-200°C) to neutralize the acetic acid in the liquid and generate calcium acetate to maintain the pH of the liquid The value is between 6.5 and 8; b:向中和后的液体中加入3~35%(以液体质量计)木质素或碱木素,以及适量添加剂并充分的搅拌,保温20~60分钟,然后,将其冷却至室温,静置12~48小时,使大部分不溶物质沉淀并分离,获得清液;b: Add 3 to 35% (by liquid mass) lignin or alkali lignin, and an appropriate amount of additives to the neutralized liquid and stir well, keep it warm for 20 to 60 minutes, then cool it to room temperature, Set aside for 12 to 48 hours to precipitate and separate most of the insoluble substances to obtain clear liquid; c:对清液过滤或离心分离,除掉其中所含的乙酸钙、细小纤维及灰尘等细微固体物质,所得均相液体即为清洁的木素醇液体燃料。c: Filtrate or centrifuge the clear liquid to remove fine solid substances such as calcium acetate, fine fibers and dust contained in it, and the obtained homogeneous liquid is clean lignin alcohol liquid fuel. 2、如权力要求书1所述,给乙醇法造纸制浆残液(温度在75~200℃)中加入CaO或Ca(HO)2,也可以是其它能与有机酸中和并生成不溶性盐的碱金属氧化物或碱,保持液体PH值在6.5~8之间;2. As described in claim 1, add CaO or Ca(HO) 2 to the ethanol paper pulping raffinate (at a temperature of 75-200°C), or other substances that can neutralize organic acids and form insoluble salts Alkali metal oxides or alkalis, keep the pH value of the liquid between 6.5 and 8;
CN 03134347 2003-07-03 2003-07-03 Production process for lignin alcohol fuel Pending CN1566289A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03134347 CN1566289A (en) 2003-07-03 2003-07-03 Production process for lignin alcohol fuel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03134347 CN1566289A (en) 2003-07-03 2003-07-03 Production process for lignin alcohol fuel

Publications (1)

Publication Number Publication Date
CN1566289A true CN1566289A (en) 2005-01-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 03134347 Pending CN1566289A (en) 2003-07-03 2003-07-03 Production process for lignin alcohol fuel

Country Status (1)

Country Link
CN (1) CN1566289A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101932670A (en) * 2007-08-14 2010-12-29 卑尔根技术交易股份公司 One-step conversion of solid lignin to liquid products
CN102154036A (en) * 2011-03-10 2011-08-17 杜良才 Method for producing boiler fuel by utilizing papermaking black liquid
CN102182095A (en) * 2011-03-31 2011-09-14 陕西科技大学 Method for recycling ethanol pulping waste liquor
WO2011131144A1 (en) * 2010-04-23 2011-10-27 Qin Caidong Mixed fuel containing lignin, production process thereof and fuel injector using the same
CN102277760A (en) * 2011-08-30 2011-12-14 内蒙古科技大学 Pre-processing method in process of producing paper pulp

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101932670A (en) * 2007-08-14 2010-12-29 卑尔根技术交易股份公司 One-step conversion of solid lignin to liquid products
US8673027B2 (en) 2007-08-14 2014-03-18 Bergen Teknologioverforing As One-step conversion of solid lignin to liquid products
CN101932670B (en) * 2007-08-14 2014-04-02 卑尔根技术交易股份公司 One-step conversion of solid lignin to liquid products
WO2011131144A1 (en) * 2010-04-23 2011-10-27 Qin Caidong Mixed fuel containing lignin, production process thereof and fuel injector using the same
CN102858926A (en) * 2010-04-23 2013-01-02 秦才东 Mixed fuel containing lignin, production method thereof, and fuel injector capable of using the mixed fuel
CN102154036A (en) * 2011-03-10 2011-08-17 杜良才 Method for producing boiler fuel by utilizing papermaking black liquid
CN102154036B (en) * 2011-03-10 2013-07-24 杜良才 Method for producing boiler fuel by utilizing papermaking black liquid
CN102182095A (en) * 2011-03-31 2011-09-14 陕西科技大学 Method for recycling ethanol pulping waste liquor
CN102277760A (en) * 2011-08-30 2011-12-14 内蒙古科技大学 Pre-processing method in process of producing paper pulp
CN102277760B (en) * 2011-08-30 2014-05-14 内蒙古科技大学 Pre-processing method in process of producing paper pulp

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