Patent Profile
| Patent No: | RU2379332 [Russian Federation] | Application No: | RU20080115448 |
| Title: | Improved method of producing methyl ether of fatty acid (biodiesel) via reesterification of oil triglycerides | ||
| Issue Date: | 20-01-2010 | File Date: | 20-10-2004 |
| Inventor(s): | Ghosh Puspito Kumar; Shetkhija Bkhupendra Dkhanvantrai; Parmar Dakhiabkhaj Revabkhaj; Pandia Dzhajant Batukraj; Gandkhi Makhesh Ramnikbaj; Ratkhod Mina Radzhnikant; Patel Mekhul Gkhanshiambkhaj; Vagkhela Nilesh Kumar Kandzhibkhaj; Dodia Pr | ||
| IPC Classification: | C10L 1/02 | ||
| Abstract: | FIELD: chemistry. SUBSTANCE: method of producing methyl ether of fatty acid (biodiesel) from oil, containing triglycerides and obtained from plants involves: (i) squeezing out oil from seeds and separation of the residue for use as manure, (ii) neutralisation with an alkali of the excess free fatty acid contained in the oil, and separation of the soap residue, (iii) addition of an antioxidant and blowing the oil with dry air to reduce water content, (iv) treatment of the oil with the respective amount of methanol solution of KOH, dried over anhydrous sodium sulphate, (v) separation of the glycerin layer formed during the reaction, (vi) treating the methyl ether of fatty acid with glycerin in two steps to further reduce content of methanol, catalyst and other impurities in the layer of methyl ether of fatty acid, (vii) separation of glycerin, (viii) washing the layer of methyl ether of fatty acid with water in two steps to minimise content of impurities, (ix) separation of washing water, (x) addition of an additional amount of antioxidant to the methyl ether of fatty acid and with blowing dry air to minimise water content, (xi) combination of the glycerin layers and treatment with SOx or flue gas to convert spent KOH catalyst to K2SO4 or K2CO3 respectively, (xii) setting the pH to approximately 7 and distillation of methanol from the glycerin layer, (xiii) hot centrifuging the remaining mass to separate potassium salts from glycerin, (xiv) washing the salt to remove impurities, (xv) separation of the required amount of crude glycerin for washing the layer of methyl ether of fatty acid in the next portion as well as for other uses where crude glycerin is used, and (xvi) distillation of the remaining crude glycerin with low content of water to obtain pure glycerin. ^ EFFECT: obtaining biodiesel which meets international standards with high output. | ||
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Industrial Applications
Chemistry, Chemical Processes Polymers [Chemistry, Chemical Processes]