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CN1940021A - Production of biological diesel oil - Google Patents

Production of biological diesel oil Download PDF

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Publication number
CN1940021A
CN1940021A CNA2005100472874A CN200510047287A CN1940021A CN 1940021 A CN1940021 A CN 1940021A CN A2005100472874 A CNA2005100472874 A CN A2005100472874A CN 200510047287 A CN200510047287 A CN 200510047287A CN 1940021 A CN1940021 A CN 1940021A
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biodiesel
oil
transesterification
agent
preparation
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CN100408656C (en
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刘波
赵宗保
孙艳
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Dalian Institute of Chemical Physics of CAS
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Dalian Institute of Chemical Physics of CAS
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P30/00Technologies relating to oil refining and petrochemical industry
    • Y02P30/20Technologies relating to oil refining and petrochemical industry using bio-feedstock

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  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Fats And Perfumes (AREA)

Abstract

本发明涉及生物柴油,具体地说是一种生物柴油的制备方法,以含油微生物菌体为原料,用低碳醇作为酯交换剂,用无机酸作为催化剂,经转酯化反应后,反应混合物冷却、过滤、液相提纯后,获得生物柴油。本发明是直接用含油微生物菌体进行转酯化反应,可以替代用提取的油脂为原料进行的转酯化反应,它没有了从原料中提取油脂的工艺过程,因此降低了过程成本,缩短了工艺,为生物柴油的制备提供了一种新的原料来源,而且提供了一种直接从含油原料中制备生物柴油的方法。The invention relates to biodiesel, specifically a method for preparing biodiesel, which uses oil-containing microbial cells as raw materials, uses low-carbon alcohols as transesterification agents, and uses inorganic acids as catalysts. After transesterification, the reaction mixture After cooling, filtering and liquid phase purification, biodiesel is obtained. The present invention directly uses oil-containing microbial cells to carry out transesterification reaction, which can replace the transesterification reaction using extracted oil as raw material. It does not have the process of extracting oil from raw materials, thus reducing the process cost and shortening the production time. The process provides a new raw material source for the preparation of biodiesel, and provides a method for directly preparing biodiesel from oily raw materials.

Description

A kind of preparation method of biofuel
Technical field
The present invention relates to biofuel, a kind of preparation method of biofuel specifically more particularly, is to be that raw material is produced method of bio-diesel oil with the oil-containing microbial cells.By under acid as catalyst, carrying out transesterification, generate biofuel with oil-containing microbial cells and low-carbon alcohol.
Background technology
Tellurian biology can be divided into animal, plant and microorganism three major types, and corresponding grease can be divided into animal grease, Vegetable oil lipoprotein and microbial oil.Certain micro-organisms produces in cell and stores under the certain culture condition and accounts for the grease of its biological total amount more than 20%, and this class bacterial strain is called oleaginous microorganism.Grease extracting method by routine can extract the intracellular grease of oleaginous microorganism, obtains microbial bacteria oil.The same with the animal and plant grease, the main component of microbial oil is a chain fatty acid triglycerides.
Biofuel is meant the long-chain fat acid monoester that is obtained through over-churning and transesterification by reproducible glyceride stock, is a kind ofly can substitute the environment friendly fuel that ordinary diesel oil is used.At present, the preparation technology of ester-interchange method production biofuel is a raw material with the animal and plant grease normally, with low-carbon alcohol such as methyl alcohol or ethanol as the transesterify agent, with alkaline matters such as sodium hydroxide, potassium hydroxide as catalyzer, carry out transesterification, generate corresponding fatty acid methyl ester or ethyl ester, be drying to obtain biofuel through washing again.Base catalysis transesterification metallization processes requires grease is carried out pre-treatment usually, has increased process cost.The biodiesel manufacture cost is raw materials cost more than 70% according to statistics.Therefore, utilize cheap raw material, simplify production process technology, to improve transformation efficiency most important to reducing the biofuel cost.
Aforementioned ester-interchange method production of biodiesel technology is with animal and plant grease or waste grease, is raw material as rapeseed oil, soybean oil, Semen Maydis oil, Oleum Gossypii semen, peanut oil, Oleum Helianthi, plam oil, Oleum Cocois, recovery culinary art oil and animal tallow etc.German Patent (DE 19838011) has been mentioned and extracted microbial bacteria oil in produce oil yeast C.curvatus, prepares the technology of biofuel again through chemical conversion.It is the technology of raw material production biofuel with the vegetable seed directly that world patent (WO 2005/030911) has been mentioned.Above method is core technology with the base catalysis all, and not mentioning is raw material with grease-contained oil-containing microbial cells directly, directly prepares biofuel through the acid catalysis transesterification.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of biofuel; The present invention directly carries out transesterification with the oil-containing microbial cells, can substitute with the grease that extracts is the transesterification that raw material carries out, it has not had to extract greasy technological process from raw material, therefore reduced process cost, shortened technology, for the preparation of biofuel provides a kind of new raw material sources, and provide a kind of and directly from the oil-containing raw material, prepared method of bio-diesel oil.
For achieving the above object, the technical solution used in the present invention is:
A kind of preparation method of biofuel by reacting under acid as catalyst with oil-containing microbial cells and low-carbon alcohol, generates fatty acid methyl ester or ethyl ester.
Being specially, is raw material with the oil-containing microbial cells, as the transesterify agent, as catalyzer, behind transesterification, after reaction mixture cooling, filtration, liquid phase are purified, obtains biofuel with mineral acid with low-carbon alcohol (methyl alcohol or ethanol).
The concrete operations condition is,
1) be raw material with the oil-containing microbial cells;
2) add methyl alcohol or ethanol in the raw material as the transesterify agent, consumption is 8~40 times of thalline quality;
3) aforementioned operation 2) add sulfuric acid or hydrochloric acid in the suspension liquid that forms as catalyzer, the amount concentration of catalyst substance reaches 0.1M~1.0M;
4) the transesterification condition is: under the effect of mixing, in 50 ℃~70 ℃ back flow reaction 10 hours~20 hours.
After described transesterification finished, reaction mixture through cooling, filtration, the liquid phase process that obtains biofuel of purifying was,
1) liquid phase is collected in reaction mixture cooling, filtration, and distillation concentrates, and reclaims methyl alcohol or alcohol solvent;
2) in enriched material, add respectively with the isopyknic extraction agent of transesterify agent and with the isopyknic distilled water of transesterify agent; Fully water is removed in vibration behind the standing demix;
3) add and the isopyknic distilled water of transesterify agent, the back layering is left standstill in fully vibration, removes water again; 1-2 time so repeatedly;
4) extraction agent is reclaimed in organic phase distillation, obtains faint yellow, clarification, transparent liquid product, i.e. biofuel.
Described extraction agent can be lower boiling organic solvent such as sherwood oil, hexane or solvent for extraction.
Specific operation process is: the dry bacterial powder of 0.5 gram~2.0 gram oil-containing microbial cells is placed 100 ml flasks; Add 10 milliliters~40 milliliters of acid~methyl alcohol that the concentration prepare in advance is 0.1~1.0M or ethanolic solns immediately, under the effect of mixing, in 50 ℃~70 ℃ back flow reaction 10 hours~20 hours; After question response was complete, cooling was filtered, and collects liquid phase, concentrates removal unreacted methanol or ethanol, adds the sherwood oil and the distilled water of 10~40 milliliters of equivalent respectively, and fully water is removed in vibration behind the standing demix; Add 10 milliliters~40 ml distilled waters again, the back layering is left standstill in fully vibration, removes water; 1~2 time so repeatedly; Dewater with anhydrous sodium sulphate, after filtering, sherwood oil is reclaimed in distillation, and high boiling liquid is in 80 ℃~105 ℃ bakings 1~2 hour, obtains faint yellow, clarification, transparent liquid product, i.e. biofuel.The biodiesel production rate of method acquisition can reach more than 80% of theoretical yield thus.
Advantage of the present invention is:
1. utilize the present invention to extract, both shortened technology, reduced running cost again grease in the oil-containing microbial cells.
2. utilize the present invention not only to expand the raw material of preparation biofuel, and provide a kind of and directly from the oil-containing raw material, prepare method of bio-diesel oil,, can obtain biofuel by the present invention at oil-containing microorganism not of the same race.
3. the present invention is by reacting under acid as catalyst with oil-containing microbial cells and low-carbon alcohol, generate fatty acid monoester, after filtration, washing and organic solvent extraction promptly obtain faint yellow, clarification, transparent liquid product---biofuel, productive rate reaches more than 80%; For the preparation of biofuel provides a kind of new raw material sources and simple and convenient process for preparing.
Embodiment
Be the specific embodiment for preparing biofuel by the oil-containing microbial cells below, can recognize the influence of different technology conditions biodiesel production rate by embodiment.
Embodiment 1
With fat content is that 50% saccharomyces oleaginosus bacterium (Lipomyces starkeyi AS 2.1560 is available from Chinese common micro-organisms culture presevation administrative center) dry bacterial powder 1.0 grams place 100 ml flasks; Adding the concentration for preparing in advance respectively is the H of 0.1M and 1.0M 2SO 420 milliliters of~methanol solutions are under the effect of mixing, in 70 ℃ of back flow reaction 20 hours; After question response was complete, cooling, filtration were collected liquid phase, the distillation for removing methanol solvent; Add 20 milliliters of sherwood oils and 20 ml distilled waters, the back layering is left standstill in fully vibration, removes water; Add 20 ml distilled waters again, the back layering is left standstill in fully vibration, removes water; Sherwood oil dewaters with anhydrous sodium sulphate, and after filtering, sherwood oil is reclaimed in distillation, and residuum is in 105 ℃ of baking 1h, obtains faint yellow, clarification, transparent liquid product, i.e. biofuel.Productive rate is respectively 93.4% and 89.8%.
Embodiment 2
With fat content is that 50% saccharomyces oleaginosus bacterium (Lipomyces starkeyi) dry bacterial powder, 1.0 grams place 100 ml flasks; Adding the concentration for preparing in advance immediately is the H of 0.2M 2SO 420 milliliters of~methanol solutions are under the effect of mixing, in 70 ℃ of back flow reaction 10 hours; Other processing condition are identical with embodiment 1.Productive rate is 79.5%.
Embodiment 3
With fat content is that 50% saccharomyces oleaginosus bacterium (Lipomyces starkeyi) and fat content are that each 1.0 gram of saccharomyces oleaginosus bacterium (Rhodosporidium toruloides) dry bacterial powder of 58% place 100 ml flasks; Add the concentration prepare in advance immediately and be 20 milliliters of HCl~methanol solutions of 0.4M, under the effect of mixing, in 70 ℃ of back flow reaction 20 hours; Other processing condition are identical with embodiment 1.Productive rate is respectively 93.0% and 98.9%.
Embodiment 4
With fat content is that 55.7% saccharomyces oleaginosus bacterium (Lipomyces starkeyi) dry bacterial powder, 1.0 grams place 100 ml flasks; Adding the concentration for preparing in advance immediately is the H of 0.2M 2SO 420 milliliters of~ethanolic solns are under the effect of mixing, in 70 ℃ of back flow reaction 20 hours; Other processing condition are identical with embodiment 1.Productive rate is 98.0%.
Embodiment 5
With oil-containing microorganism not of the same race (Lipomyces starkeyi, Rhodosporidium toruloides, Mortierella isabellina), each 1.0 gram of dry bacterial powder place 100 ml flasks; Add 20 milliliters of the acid~methanol solutions prepare in advance respectively, under the effect of mixing, in 70 ℃ of back flow reaction 20 hours; Other processing condition are identical with embodiment 1.The results are shown in Table 1.
The different oil-containing microorganisms of table 1 prepare biodiesel production rate relatively
The oil-containing microorganism strains Reaction system Fat content/% Bacterium powder/g Productive rate/%
Lipomyces starkeyi 0.2M H 2SO 4-MeOH 50.0 1.1 84
Rhodosporidium toruloides 0.2M H 2SO 4-MeOH 58.0 1.0 98.1
Mortierella isabellina 0.4M HCl-MeOH 53.2 1.0 93.2
Embodiment 6
With fat content is that 50% oil-containing microorganism (Lipomyces starkeyi), 1.0 gram dry bacterial powders place 100 ml flasks; Adding the concentration for preparing in advance immediately is the H of 0.2M 2SO 420 milliliters of~methanol solutions are under the effect of mixing, in 50 ℃ of back flow reaction 20 hours; Other processing condition are identical with embodiment 1, and obtaining biodiesel production rate is 86.8%.

Claims (4)

1.一种生物柴油的制备方法,其特征在于:以含油微生物菌体为原料,用低碳醇作为酯交换剂,用无机酸作为催化剂,经转酯化反应后,反应混合物冷却、过滤、液相提纯后,获得生物柴油。1. a preparation method of biodiesel, characterized in that: with oil-containing microbial thalline as raw material, with low-carbon alcohol as transesterification agent, with inorganic acid as catalyzer, after transesterification reaction, reaction mixture cooling, filtration, After liquid phase purification, biodiesel is obtained. 2.按照权利要求1所述生物柴油的制备方法,其特征在于:具体操作条件为,2. according to the preparation method of the described biodiesel of claim 1, it is characterized in that: specific operation condition is, 1)以含油微生物菌体为原料;1) Using oil-containing microbial cells as raw materials; 2)原料中加入甲醇或乙醇作为酯交换剂,用量为菌体质量的8~40倍;2) Methanol or ethanol is added to the raw material as an ester exchange agent, and the dosage is 8 to 40 times the mass of the bacteria; 3)前述操作2)形成的悬浊液中加入硫酸或盐酸作为催化剂,催化剂物质的量浓度达到0.1M~1.0M;3) Sulfuric acid or hydrochloric acid is added as a catalyst to the suspension formed in the aforementioned operation 2), and the concentration of the catalyst substance reaches 0.1M to 1.0M; 4)转酯化反应条件为:在搅拌混合作用下,于50℃~70℃回流反应10小时~20小时。4) The transesterification reaction conditions are: under the action of stirring and mixing, reflux reaction at 50° C. to 70° C. for 10 hours to 20 hours. 3.按照权利要求1所述生物柴油的制备方法,其特征在于:所述转酯化反应结束后,反应混合物经冷却、过滤、液相提纯获得生物柴油的过程为,3. according to the preparation method of the described biodiesel of claim 1, it is characterized in that: after described transesterification reaction finishes, the process that reaction mixture obtains biodiesel through cooling, filtration, liquid phase purification is, 1)反应混合物冷却、过滤,收集液相,蒸馏浓缩,并回收甲醇或乙醇溶剂;1) The reaction mixture is cooled, filtered, the liquid phase is collected, concentrated by distillation, and the methanol or ethanol solvent is recovered; 2)在浓缩物中分别加入与酯交换剂等体积的萃取剂和与酯交换剂等体积的蒸馏水;充分振荡,静置分层后去掉水相;2) Add an extractant equal in volume to the transesterification agent and distilled water equal in volume to the transesterification agent in the concentrate; shake fully, and remove the water phase after standing for stratification; 3)再加入与酯交换剂等体积的蒸馏水,充分振荡,静置后分层,去掉水相;如此反复1-2次;3) Then add distilled water equal to the volume of the transesterification agent, oscillate fully, separate after standing, and remove the water phase; repeat this 1-2 times; 4)有机相蒸馏回收萃取剂,得到淡黄色、澄清、透明的液体产品,即生物柴油。4) The organic phase is distilled to recover the extractant to obtain a light yellow, clear and transparent liquid product, i.e. biodiesel. 4.按照权利要求3所述生物柴油的制备方法,其特征在于:所述萃取剂为低沸点的有机溶剂石油醚、己烷或抽提溶剂油。4. according to the preparation method of the described biodiesel of claim 3, it is characterized in that: described extraction agent is the organic solvent sherwood oil of low boiling point, hexane or extraction solvent naphtha.
CNB2005100472874A 2005-09-28 2005-09-28 A kind of preparation method of biodiesel Expired - Fee Related CN100408656C (en)

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Cited By (14)

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EP2351845A1 (en) * 2007-06-01 2011-08-03 Solazyme, Inc. Renewable chemicals and fuels from oleaginous yeast
US8187860B2 (en) 2008-11-28 2012-05-29 Solazyme, Inc. Recombinant microalgae cells producing novel oils
US8278261B2 (en) 2008-04-09 2012-10-02 Solazyme, Inc. Method of making soaps from oil-bearing microbial biomass and oils
US8592188B2 (en) 2010-05-28 2013-11-26 Solazyme, Inc. Tailored oils produced from recombinant heterotrophic microorganisms
CN103849456A (en) * 2012-12-05 2014-06-11 中国科学院大连化学物理研究所 Method for rapid methyl esterification of trace amount of algae powder
US8846352B2 (en) 2011-05-06 2014-09-30 Solazyme, Inc. Genetically engineered microorganisms that metabolize xylose
US8945908B2 (en) 2012-04-18 2015-02-03 Solazyme, Inc. Tailored oils
US9249252B2 (en) 2013-04-26 2016-02-02 Solazyme, Inc. Low polyunsaturated fatty acid oils and uses thereof
US9394550B2 (en) 2014-03-28 2016-07-19 Terravia Holdings, Inc. Lauric ester compositions
CN106318648A (en) * 2015-06-30 2017-01-11 中国科学院大连化学物理研究所 Transesterification method based on microchannel reactor
US10119947B2 (en) 2013-08-07 2018-11-06 Corbion Biotech, Inc. Protein-rich microalgal biomass compositions of optimized sensory quality
CN109652110A (en) * 2018-11-22 2019-04-19 天津大学 The method for directly preparing biodiesel using wet microalgae is reacted based on hydrochloric acid catalysis hydrolysis -esterization
US10264809B2 (en) 2013-01-28 2019-04-23 Corbion Biotech, Inc. Microalgal flour
US12059006B2 (en) 2008-10-14 2024-08-13 Corbion Biotech, Inc. Microalgal flour

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DE19838011C2 (en) * 1998-08-21 2000-01-13 Christoph Syldatk Process for the biotechnical production of fatty acid methyl esters ("biodiesel") based on whey
CN1276962C (en) * 2004-12-23 2006-09-27 大连理工大学 Process for coupling producing bioloigical diesel oil and 1,3-propylene glycol

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US9434909B2 (en) 2007-06-01 2016-09-06 Solazyme, Inc. Renewable diesel and jet fuel from microbial sources
US8889402B2 (en) 2007-06-01 2014-11-18 Solazyme, Inc. Chlorella species containing exogenous genes
US8889401B2 (en) 2007-06-01 2014-11-18 Solazyme, Inc. Production of oil in microorganisms
EP2351845A1 (en) * 2007-06-01 2011-08-03 Solazyme, Inc. Renewable chemicals and fuels from oleaginous yeast
US8802422B2 (en) 2007-06-01 2014-08-12 Solazyme, Inc. Renewable diesel and jet fuel from microbial sources
US8790914B2 (en) 2007-06-01 2014-07-29 Solazyme, Inc. Use of cellulosic materials for cultivation of microorganisms
US8476059B2 (en) 2007-06-01 2013-07-02 Solazyme, Inc. Sucrose feedstock utilization for oil-based fuel manufacturing
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US8278261B2 (en) 2008-04-09 2012-10-02 Solazyme, Inc. Method of making soaps from oil-bearing microbial biomass and oils
US8822176B2 (en) 2008-04-09 2014-09-02 Solazyme, Inc. Modified lipids produced from oil-bearing microbial biomass and oils
US12059006B2 (en) 2008-10-14 2024-08-13 Corbion Biotech, Inc. Microalgal flour
US8222010B2 (en) 2008-11-28 2012-07-17 Solazyme, Inc. Renewable chemical production from novel fatty acid feedstocks
US8435767B2 (en) 2008-11-28 2013-05-07 Solazyme, Inc. Renewable chemical production from novel fatty acid feedstocks
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US9464304B2 (en) 2008-11-28 2016-10-11 Terravia Holdings, Inc. Methods for producing a triglyceride composition from algae
US9062294B2 (en) 2008-11-28 2015-06-23 Solazyme, Inc. Renewable fuels produced from oleaginous microorganisms
US8187860B2 (en) 2008-11-28 2012-05-29 Solazyme, Inc. Recombinant microalgae cells producing novel oils
US9109239B2 (en) 2010-05-28 2015-08-18 Solazyme, Inc. Hydroxylated triacylglycerides
US8765424B2 (en) 2010-05-28 2014-07-01 Solazyme, Inc. Tailored oils produced from recombinant heterotrophic microorganisms
US8592188B2 (en) 2010-05-28 2013-11-26 Solazyme, Inc. Tailored oils produced from recombinant heterotrophic microorganisms
US8846352B2 (en) 2011-05-06 2014-09-30 Solazyme, Inc. Genetically engineered microorganisms that metabolize xylose
US9499845B2 (en) 2011-05-06 2016-11-22 Terravia Holdings, Inc. Genetically engineered microorganisms that metabolize xylose
US9102973B2 (en) 2012-04-18 2015-08-11 Solazyme, Inc. Tailored oils
US8945908B2 (en) 2012-04-18 2015-02-03 Solazyme, Inc. Tailored oils
CN103849456B (en) * 2012-12-05 2015-07-15 中国科学院大连化学物理研究所 Method for rapid methyl esterification of trace amount of algae powder
CN103849456A (en) * 2012-12-05 2014-06-11 中国科学院大连化学物理研究所 Method for rapid methyl esterification of trace amount of algae powder
US10264809B2 (en) 2013-01-28 2019-04-23 Corbion Biotech, Inc. Microalgal flour
US9249252B2 (en) 2013-04-26 2016-02-02 Solazyme, Inc. Low polyunsaturated fatty acid oils and uses thereof
US10119947B2 (en) 2013-08-07 2018-11-06 Corbion Biotech, Inc. Protein-rich microalgal biomass compositions of optimized sensory quality
US9394550B2 (en) 2014-03-28 2016-07-19 Terravia Holdings, Inc. Lauric ester compositions
US9796949B2 (en) 2014-03-28 2017-10-24 Terravia Holdings, Inc. Lauric ester compositions
CN106318648A (en) * 2015-06-30 2017-01-11 中国科学院大连化学物理研究所 Transesterification method based on microchannel reactor
CN109652110A (en) * 2018-11-22 2019-04-19 天津大学 The method for directly preparing biodiesel using wet microalgae is reacted based on hydrochloric acid catalysis hydrolysis -esterization

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