Catalyst for the production of carboxylic acid ester
AssigneeSBI Fine Chemicals Inc.
InventorsInder Pal Singh, Shradha Singh, Bharat Mistry, Zhiyong Li
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Abstract
Catalysts and methods for use in conversion of glycerides and free fatty acids to biodiesel are described. A batch or continuous process may be used with the catalysts for transesterification of triglycerides with an alkyl alcohol to produce corresponding mono carboxylic acid esters and glycerol in high yields and purity. Similarly, alkyl and aryl carboxylic acids and free fatty acids are also converted to corresponding alkyl esters. Catalysts are capable of simultaneous esterification and transesterification under same process conditions. The described catalysts are thermostable, long lasting, and highly active.
Claims19
A catalyst comprising:
- at least one Mesoporous Linde Type A (MLTA) zeolite, alone or in combination with:
- at least one ion exchanged Modified Molecular Sieve (MMS) selected from the group consisting of MMS-3 ÅK, MMS-3 ÅCs, MMS-4 ÅK, MMS-4 ÅCs, MMS-5 ÅK and MMS-5 ÅCs;
- and/or
- at least one metal oxide selected from the group consisting of groups IIB, IIIA, IBB, IVA and IVB metals, wherein the catalyst has an average pore diameter between about 10 Å and about 500 Å, a surface area between about 1 m2/g and about 100 m2/g, and/or a pore volume between about 0.01 cm3/g and 1 cm3/g.
Dependencies are inferred from the claim text.