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METHANOL PROCESSING METHOD IN THE PROCESS OF PRODUCING DIMETHYL OXALATE BY GAS SYNTHESIS
METHANOL PROCESSING METHOD IN THE PROCESS OF PRODUCING DIMETHYL OXALATE BY GAS SYNTHESIS
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机译:天然气合成草酸二甲酯过程中的甲醇加工方法
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摘要
The invention relates to a method for recovering methanol in a coal-based synthetic gas-to-glycol process. The method comprises the following steps: a crude methanol flow containing methyl nitrite, methyl formate and dimethyl carbonate enters a nitrite recovery tower, methyl nitrite is recovered from the top of the recovery tower, methyl nitrite removed crude methanol enters a light component removal tower, methyl formate is removed from the top of the light component removal tower, methyl formate removed crude methanol contains a small amount of dimethyl carbonate, methanol and dimethyl carbonate are separated to obtain methanol for cycle use, and dimethyl carbonate is extracted as a product to be used in industrial production of glycol.
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