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1. WO2011008847 - SYSTEMS AND METHODS FOR REMOVING CATALYST AND RECOVERING FREE CARBOXYLIC ACIDS FROM TRANSESTERIFICATION REACTION

Publication Number WO/2011/008847
Publication Date 20.01.2011
International Application No. PCT/US2010/041959
International Filing Date 14.07.2010
IPC
C07C 67/60 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
67Preparation of carboxylic acid esters
48Separation; Purification; Stabilisation; Use of additives
60by treatment giving rise to chemical modification
C07C 67/03 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
67Preparation of carboxylic acid esters
03by reacting an ester group with a hydroxy group
C07C 29/147 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
132by reduction of an oxygen-containing functional group
136of C=O containing groups, e.g. -COOH
147of carboxylic acids or derivatives thereof
C07C 31/22 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
31Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
18Polyhydroxylic acyclic alcohols
22Trihydroxylic alcohols, e.g. glycerol
C10L 1/02 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR  C10K111; LIQUEFIED PETROLEUM GAS;  USE OF ADDITIVES TO FUELS OR FIRES;  FIRE-LIGHTERS
1Liquid carbonaceous fuels
02essentially based on components consisting of carbon, hydrogen, and oxygen only
CPC
C07C 67/60
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
67Preparation of carboxylic acid esters
48Separation; Purification; Stabilisation; Use of additives
60by treatment giving rise to chemical modification
C10G 2300/1011
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION
2300Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
10Feedstock materials
1011Biomass
C10L 1/026
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR
1Liquid carbonaceous fuels
02essentially based on components consisting of carbon, hydrogen, and oxygen only
026for compression ignition
C11C 3/003
CCHEMISTRY; METALLURGY
11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
CFATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
3Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
003by esterification of fatty acids with alcohols
Y02E 50/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
50Technologies for the production of fuel of non-fossil origin
10Biofuels
Y02P 30/20
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
30Technologies relating to oil refining and petrochemical industry
20Bio-feedstock
Applicants
  • CERAMATEC, INC. [US]/[US] (AllExceptUS)
  • PENDLETON, Justin [US]/[US] (UsOnly)
  • BHAVARAJU, Sai [IN]/[US] (UsOnly)
  • DUFFEY, Kean [US]/[US] (UsOnly)
Inventors
  • PENDLETON, Justin
  • BHAVARAJU, Sai
  • DUFFEY, Kean
Agents
  • FONDA, David
Priority Data
61/225,43014.07.2009US
61/234,69418.08.2009US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEMS AND METHODS FOR REMOVING CATALYST AND RECOVERING FREE CARBOXYLIC ACIDS FROM TRANSESTERIFICATION REACTION
(FR) SYSTÈMES ET PROCÉDÉS PERMETTANT L'ÉLIMINATION D'UN CATALYSEUR ET LA RÉCUPÉRATION D'ACIDES CARBOXYLIQUES LIBRES À PARTIR D'UNE RÉACTION DE TRANSESTÉRIFICATION
Abstract
(EN)
Systems and methods for using carbon dioxide to remove an alkali catalyst and to recover free carboxylic acids after a transesterification reaction are disclosed. Generally, the methods include first providing a mixture resulting from the transesterification of an ester, wherein the mixture includes substances selected from the alkali catalyst, an alcohol, and a transesterification reaction product such as biodiesel. Second, the methods generally include adding carbon dioxide to the mixture. In some cases, adding the carbon dioxide to the mixture causes the alkali catalyst to convert into an alkali carbonate and/or an alkali bicarbonate. In other cases, adding the carbon dioxide to the mixture causes the carboxylic acid alkali salt to convert into a free carboxylic acid. In either case, the alkali carbonate, the alkali bicarbonate, and/or the free carboxylic acid can be separated from the mixture in any suitable manner.
(FR)
La présente invention a pour objet des systèmes et des procédés d'utilisation du dioxyde de carbone pour éliminer un catalyseur alcalin et pour récupérer des acides carboxyliques libres après une réaction de transestérification. En général, les procédés comprennent en premier lieu la fourniture d'un mélange résultant de la transestérification d'un ester, le mélange comprenant des substances choisies parmi le catalyseur alcalin, un alcool, et un produit de réaction de transestérification tel qu'un biodiesel. En second lieu, les procédés comprennent en général l'ajout de dioxyde de carbone au mélange. Dans certains cas, l'ajout du dioxyde de carbone au mélange provoque la conversion du catalyseur alcalin en carbonate alcalin et/ou en bicarbonate alcalin. Dans d'autres cas, l'ajout du dioxyde de carbone au mélange provoque la conversion du sel alcalin d'acide carboxylique en acide carboxylique libre. Dans chaque cas, le carbonate alcalin, le bicarbonate alcalin, et/ou l'acide carboxylique libre peuvent être séparés du mélange de n'importe quelle manière appropriée.
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