WO2016098025A1 - Proceso de purificación de biodiesel - Google Patents
Proceso de purificación de biodiesel Download PDFInfo
- Publication number
- WO2016098025A1 WO2016098025A1 PCT/IB2015/059692 IB2015059692W WO2016098025A1 WO 2016098025 A1 WO2016098025 A1 WO 2016098025A1 IB 2015059692 W IB2015059692 W IB 2015059692W WO 2016098025 A1 WO2016098025 A1 WO 2016098025A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- biodiesel
- minutes
- phase containing
- temperature
- water
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/02—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
- C10L1/026—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only for compression ignition
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
- C07C67/58—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Definitions
- the present invention relates to a process of purification of biodiesel by means of which the content of monoacylglycerides and sterols glycosides in the biodiesel obtained is decreased.
- biodiesel purification process is that after the reaction of a triacylglycerol and an alcohol where glycerol and biodiesel are obtained, the glycerol is separated, and subsequently the biodiesel is washed with dilute acids such as citric, hydrochloric or phosphoric. Finally it is washed again with neutral water and dried. This procedure does not decrease the content of mono acyl glycerides, nor does it hydrolyze sterols glycosides.
- the producing plants have technology and facilities to produce biodiesel with monoacylglyceride values that They are around 0.6%, which complicates biofuel exports to the United States.
- Some plants have the possibility of lowering the content of monoacrylic glycerides to values close to (or slightly lower) to 0.4%, increasing the concentration of catalyst fed. This causes yield losses (due to the simultaneous increase in saponification reactions) and increased costs due to the large amount of catalyst needed to obtain these values.
- most of the technologies currently in use do not allow these values to be easily achieved.
- Patent application GB 2455900 describes a biodiesel purification process where, after the reaction steps, the glycerol is separated, and subsequently the catalyst is quenched with an acid dissolved in methanol, with a subsequent stage of methanol recovery from the biodiesel phase Finally, the biodiesel is washed with neutral or preferably acidic water.
- JP application 2008156576 describes a method of eliminating monoacrylic glycerides present in biodiesel (methyl esters) through an extraction operation, and the removal of di- and tri-glycerides by distillation. After the reaction, the glycerol is separated and monoacylglycerides are extracted using mixtures of glycerin and alcohols. The extraction is preferably carried out with a 1: 1 glycerin / alcohol ratio.
- the JPH07310090 application describes a simple conventional biodiesel production process.
- the purification of the biodiesel-rich phase is carried out using the sequence usually implemented in the production plants, separating the glycerol, and using a first wash with water containing an acid, a second stage using water, and finally adding clay and using high temperature .
- Application AR080843A1 proposes different alternatives for the processing of triacylglycerides, both oils and grease, to produce different types of products.
- One of the main routes proposed is the metathesis of oil components, obtaining different types of compounds, including olefins.
- Also included is the production of alkyl esters by transesterification, with numerous alternatives to obtain different compounds, such as mono and diacylglycerides.
- the application EP0249463A2 aims to process crude oils and fats. For this, it is proposed that after the reaction and separation of glycerol, the biodiesel is washed with a solution containing a surfactant such as ethoxylated nonylphenol, a strong salt (such as sodium chloride), and a deponifying agent, such as phosphoric acid .
- a surfactant such as ethoxylated nonylphenol
- a strong salt such as sodium chloride
- a deponifying agent such as phosphoric acid
- Application GB2466493 describes a multi-stage process in which a stream of biodiesel and several of glycerin is obtained.
- This patent proposes a scheme very similar to that described in GB2455900.
- the biodiesel phase is washed with acidic water, proposing, for example, the use of citric acid.
- the difference between these two patents of the company Desmet Ballestra Engineering SA, is that in GB 2466493 a final high temperature drying stage is proposed, so as to achieve a water level preferably less than 200 ppm.
- US8580119B1 is very similar to US8540881, filed by the same company. It is based on the use of heterogeneous catalysts, purifying the biodiesel by distillation after separating the glycerin phase.
- Application US2013211115A proposes to purify biodiesel with a high content of monoacylglycerides (in the range 1-2% approximately), performing liquid-liquid extraction operations, using an alcohol, preferably methanol, with a certain percentage of water, preferably in the range 10- twenty%. It is also proposed, as an alternative, to also add a non-polar solvent (for example hexane, heptane, etc.), in order to improve the extraction of mono acyl glycerides. In the examples described in the patent, an amount of polar solvent (alcohol-water) with a volume equivalent to that of the biodiesel phase is used. No compound is added to adjust the pH of the extractor medium.
- a non-polar solvent for example hexane, heptane, etc.
- Application US2014109466A includes a final reaction stage with solid catalysts so as to decrease the level of impurities of the biodiesel phase, and finally purify the output current of this reactor using solid adsorbents.
- the purification process of the present invention decreases the concentration of mono acyl glycerides to values close to 0.1%, and lowers the amount of sterile glycosides that precipitate in the final biodiesel, allowing to obtain values of total contamination lower than those obtained with Current procedures
- it has the advantage that the investment in equipment is very low, and the operating costs are minimal, being a great alternative for the biodiesel producing industry.
- Figure 1 shows the concentration of monoacylglycerides as a function of the washing time for the present invention.
- the present invention describes a process of purification of crude biodiesel obtained by the reaction between a triacylglycerol, whose source is a vegetable oil or animal fat, and an alcohol in the presence of a catalyst comprising the following steps: a) adding water to said biodiesel crude in a proportion of between 1 and 50% w / v with respect to crude biodiesel, before separating the glycerol produced in said reaction; b) stir at a temperature of between 20 and 100 ° C for a time of between 1 and 60 minutes; and c) separating the product obtained in step b) in an aqueous phase and a phase containing biodiesel and recovering the phase containing biodiesel.
- step c) is carried out by decanting at a temperature between 20 and 100 ° C and the phase containing the biodiesel is recovered.
- the process of the present invention further comprises the following steps: d. add to the phase containing biodiesel an acid solution diluted with an acid concentration of between 0.1 and 5%, in a proportion of between 1 and 50% w / v with respect to the phase containing biodiesel; and. decant at a temperature between 20 and 100 ° C, and recover the phase containing the biodiesel; F. add to the phase containing biodiesel neutral water in a proportion between 1 and 50% w / v with respect to the phase containing biodiesel; g. remove the water added in step f) at a temperature between 80 and 110 ° C.
- the proportion of water to be added is between 1 and 15% w / v of water with respect to crude biodiesel.
- the stirring occurs preferably at a temperature of between 40 and 80 ° C, and for a time of between 20 and 40 minutes; more preferably the temperature is between 50 and 70 ° C and the time between 20 and 40 minutes.
- said separation step c) by decantation it is carried out at a temperature between 50 and 70 ° C
- the decantation of step e) is preferably carried out at a temperature between 50 and 70 ° C.
- the proportion of dilute acid solution with respect to the phase containing biodiesel is preferably between 1 and 20% w / v; and in said step f) the proportion of neutral water in relation to the oil-containing phase is between 7.5 and 12.5% w / v.
- step a) acid solution is added and the concentration of monoacrylic glycerides, at the end of said process of purification of crude biodiesel is lower at 0.3%, it is preferably less than 0.2%, reaching said concentration in a time of at least 15 minutes.
- the reaction for obtaining raw biodiesel is carried out in one step.
- reaction for obtaining raw biodiesel is carried out in two stages.
- the obtaining reaction and / or purification steps are carried out in discontinuous processes.
- the production reaction and / or purification steps are carried out in continuous processes.
- the biodiesel purification process of the present invention is carried out through the following steps that occur from the transesterification reaction to produce biodiesel having as a product a mixture composed mainly of methyl esters (biodiesel), glycerin, methanol, catalyst, impurities such as soaps and pollutants such as monoacrylic glycerides, diacylglycerides and sterile glycosides, among others: a) without separating the glycerol, add water to the product of the biodiesel production reaction in a proportion between 1 and 50% w / v of water with respect to the starting oil; preferably 5% w / v of water with respect to the starting oil; b) keep under stirring, at a temperature between 20 and 100 ° C, preferably between 40 and 80 ° C and for a time between 1 and 60 minutes, preferably between 15 and 40 minutes; c) settling at a temperature between 20 and 100 ° C, preferably between 40 and 80, more preferably 60 ° C, recovering
- the process of the present invention manages to reduce the concentration of monoglycerides between 45 and 83% with respect to conventional methods, in a very short period of time, of only 10 to 40 minutes. It not only decreases the content of monoglycerides but also decreases the content of di and triglycerides, so that the total content is less than 20 mg / kg.
- the process of the present invention is so efficient that it can be used for both single-stage and two-stage biodiesel manufacturing processes, being also a process with low investment in equipment and minimum operating costs.
- Process of the present invention washing prior to the separation of glycerin (H 2 0-HC1-H 2 0): water was added without separating the glycerol.
- Process of the present invention prior to the separation of glycerin washing: After the 2 nd reaction stage no glycerol is separated.
- Example 2 Repeat Example 1 (wash with HC1)
- Example 5 Determination of the time of disappearance of monoacylglycerides over time in basic medium (KOH) and without glycerin.
- 1st stage 180 gr soybean oil 3313 + 31.2 gr MeOH + 3.68 gr MeON at 60 ° C - 90 minutes.
- Soaps (J), KOH,% MG,% DG and% TG are measured over time
- Example 7 Experiences complementary to Example 6. Confirmation of the concentrations of esters and total glycerin.
- biodiesel obtained with the new purification washing with glycerin
- total esters and total volumetric glycerin were measured in order to see if they appear organic compounds other than esters and / or macromolecules derived from oligomerization. These compounds could come from the disappearance of monoacylglycerides.
- the filtered Biodiesel was analyzed to determine a difference in the MG content.
- glycosides are hydrolyzed: it is demonstrated by scraping the membranes and seeing glycosides by chromatographic analysis.
- washing before separating the glycerol after the reaction step, the glycerol is NOT separated. This is the process of the present invention.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Fats And Perfumes (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112017013034-3A BR112017013034B1 (pt) | 2014-12-17 | 2015-12-16 | Processo de purificação de biodiesel bruto |
CONC2017/0006079A CO2017006079A2 (es) | 2014-12-17 | 2017-06-20 | Proceso de purificación de biodiesel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AR20140104698 | 2014-12-17 | ||
ARP140104698A AR099369A1 (es) | 2014-12-17 | 2014-12-17 | Proceso de purificación de biodiesel |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016098025A1 true WO2016098025A1 (es) | 2016-06-23 |
Family
ID=55359546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2015/059692 WO2016098025A1 (es) | 2014-12-17 | 2015-12-16 | Proceso de purificación de biodiesel |
Country Status (4)
Country | Link |
---|---|
AR (1) | AR099369A1 (es) |
BR (1) | BR112017013034B1 (es) |
CO (1) | CO2017006079A2 (es) |
WO (1) | WO2016098025A1 (es) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3305877A1 (en) * | 2016-10-04 | 2018-04-11 | Petróleo Brasileiro S.A. Petrobras | Process for purifying biodiesel |
WO2023225377A1 (en) | 2022-05-19 | 2023-11-23 | Desmet Belgium | Novel process for producing biodiesel with reduced monoacylglycerol content |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0249463A2 (en) | 1986-06-11 | 1987-12-16 | Bio-Energy Technology Ltd. | Bio-fuel production |
JPH07310090A (ja) | 1994-05-19 | 1995-11-28 | Tensei Seiyu Kk | 脂肪酸メチルエステルの製造方法 |
US20050081436A1 (en) | 2003-10-09 | 2005-04-21 | Bryan Bertram | Purification of biodiesel with adsorbent materials |
US20060096159A1 (en) * | 2002-12-07 | 2006-05-11 | Rudolf Bonsch | Method for improving the long term stability of biodiesel |
US20070277429A1 (en) | 2003-01-27 | 2007-12-06 | Jackam John P | Production of biodiesel and glycerin from high free fatty acid feedstocks |
JP2008156576A (ja) | 2006-12-26 | 2008-07-10 | Nippon Shokubai Co Ltd | 高純度脂肪酸アルキルエステルの製造方法 |
WO2009074307A2 (de) | 2007-12-12 | 2009-06-18 | Süd-Chemie AG | Aufreinigung von biodiesel mittels allophan und/oder imogolit |
GB2455900A (en) | 2007-12-24 | 2009-07-01 | Desmet Ballestra Engineering S A | Production of biodiesel having improved filtration characteristics |
GB2466493A (en) | 2008-12-23 | 2010-06-30 | Desmet Ballestra Engineering Sa | Process for the production and treatment of biodiesel with improved cold soak test results |
WO2011033346A1 (en) * | 2009-09-15 | 2011-03-24 | Council Of Scientific & Industrial Research | A process for conversion of low cost and high ffa oils to biodiesel |
AR080843A1 (es) | 2010-10-11 | 2012-05-09 | Elevance Renewable Sciences | Metodos para refinar y producir combustible a partir de fuentes de aceite natural |
US20130211115A1 (en) | 2010-07-08 | 2013-08-15 | Arkema France | Process for the purification of a fatty acid alkyl ester by liquid/liquid extraction |
US8540881B1 (en) | 2012-11-27 | 2013-09-24 | Menlo Energy Management, LLC | Pretreatment, esterification, and transesterification of biodiesel feedstock |
US8580119B1 (en) | 2012-11-27 | 2013-11-12 | Menlo Energy Management, LLC | Transesterification of biodiesel feedstock with solid heterogeneous catalyst |
US20140109466A1 (en) | 2011-06-21 | 2014-04-24 | W.R. GRACE & CO. Drive | Catalytic purification of fatty acid alkyl esters used in fuels |
-
2014
- 2014-12-17 AR ARP140104698A patent/AR099369A1/es active IP Right Grant
-
2015
- 2015-12-16 BR BR112017013034-3A patent/BR112017013034B1/pt active IP Right Grant
- 2015-12-16 WO PCT/IB2015/059692 patent/WO2016098025A1/es active Application Filing
-
2017
- 2017-06-20 CO CONC2017/0006079A patent/CO2017006079A2/es unknown
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0249463A2 (en) | 1986-06-11 | 1987-12-16 | Bio-Energy Technology Ltd. | Bio-fuel production |
WO1987007632A1 (en) * | 1986-06-11 | 1987-12-17 | Bio-Energy Technology Ltd. | Bio-fuel production |
JPH07310090A (ja) | 1994-05-19 | 1995-11-28 | Tensei Seiyu Kk | 脂肪酸メチルエステルの製造方法 |
US20060096159A1 (en) * | 2002-12-07 | 2006-05-11 | Rudolf Bonsch | Method for improving the long term stability of biodiesel |
US20070277429A1 (en) | 2003-01-27 | 2007-12-06 | Jackam John P | Production of biodiesel and glycerin from high free fatty acid feedstocks |
US20050081436A1 (en) | 2003-10-09 | 2005-04-21 | Bryan Bertram | Purification of biodiesel with adsorbent materials |
JP2008156576A (ja) | 2006-12-26 | 2008-07-10 | Nippon Shokubai Co Ltd | 高純度脂肪酸アルキルエステルの製造方法 |
WO2009074307A2 (de) | 2007-12-12 | 2009-06-18 | Süd-Chemie AG | Aufreinigung von biodiesel mittels allophan und/oder imogolit |
GB2455900A (en) | 2007-12-24 | 2009-07-01 | Desmet Ballestra Engineering S A | Production of biodiesel having improved filtration characteristics |
GB2466493A (en) | 2008-12-23 | 2010-06-30 | Desmet Ballestra Engineering Sa | Process for the production and treatment of biodiesel with improved cold soak test results |
WO2011033346A1 (en) * | 2009-09-15 | 2011-03-24 | Council Of Scientific & Industrial Research | A process for conversion of low cost and high ffa oils to biodiesel |
US20130211115A1 (en) | 2010-07-08 | 2013-08-15 | Arkema France | Process for the purification of a fatty acid alkyl ester by liquid/liquid extraction |
AR080843A1 (es) | 2010-10-11 | 2012-05-09 | Elevance Renewable Sciences | Metodos para refinar y producir combustible a partir de fuentes de aceite natural |
US20140109466A1 (en) | 2011-06-21 | 2014-04-24 | W.R. GRACE & CO. Drive | Catalytic purification of fatty acid alkyl esters used in fuels |
US8540881B1 (en) | 2012-11-27 | 2013-09-24 | Menlo Energy Management, LLC | Pretreatment, esterification, and transesterification of biodiesel feedstock |
US8580119B1 (en) | 2012-11-27 | 2013-11-12 | Menlo Energy Management, LLC | Transesterification of biodiesel feedstock with solid heterogeneous catalyst |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3305877A1 (en) * | 2016-10-04 | 2018-04-11 | Petróleo Brasileiro S.A. Petrobras | Process for purifying biodiesel |
US10266781B2 (en) * | 2016-10-04 | 2019-04-23 | Petróleo Brasileiro S.A.—Petrobras | Process for purifying biodiesel |
WO2023225377A1 (en) | 2022-05-19 | 2023-11-23 | Desmet Belgium | Novel process for producing biodiesel with reduced monoacylglycerol content |
Also Published As
Publication number | Publication date |
---|---|
CO2017006079A2 (es) | 2017-08-31 |
BR112017013034B1 (pt) | 2021-12-07 |
AR099369A1 (es) | 2016-07-20 |
BR112017013034A2 (pt) | 2018-01-09 |
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