Synthesis of dimethyl carbonate (oxygenated fuel) from methanol and carbon dioxide

• Main Authors: CHOU, LAWRENCE, HO, KUOUAN, LING, TZONG-RONG, CHANG, JYH-SHYONG, HWANG, BING-JOE, LIN, TZONG-BIN, CHOU, TSEUAN
• Format: Patent
• Language: Chinese; English
• Published: 01.01.2011
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LIQUEFIED PETROLEUM GAS; LUBRICANTS; METALLURGY; NATURAL GAS; ORGANIC CHEMISTRY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The present invention relates to a method for producing dimethyl carbonate (DMC) by liquid-liquid phase reactive extraction for improving water and products removal after reaction and increasing the yield of DMC. The process includes: (a) providing methanol, CO2, catalyst, and the hydrophobic fuel; (b) providing a reactor; (c) adding methanol, CO2, catalyst, and hydrophobic fuel to the reactor; (d) esterifying methanol with CO2 to obtain dimethyl carbonate allowing to dissolve into the hydrophobic fuel; and (e) separating the hydrophobic fuel; (f) separating the produced water from the esterification. The hydrophobic fuel comprises: butane, propane, gasoline and other hydrophohic organic fuels.