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离子液态绿色过程工程合作生产乙二醇和碳酸二甲酯

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作为一种重要的合成,碳酸二甲酯(DMC)的一种物理特性和适应性反应。它已经被广泛用作可分解的,燃料添加物质和锂电池电解液。此外,DMC可以被视为一种绿色羰基化试剂和甲基化试剂取代特别有害的光气,甲基氯甲酸酯、硫酸二甲酯。这些天,DMC请求正在扩大,因而有效和廉价的制造这种物质是深刻的有吸引力的公约。详细的生产碳酸二甲酯的策略,包括光气,甲醇氧化羰基化反应,尿素醇解,直接从二氧化碳和甲醇,组合和酯交换方案1中总结。中,传统的光气课程这些天一直限制因为它的危害和健康问题。公司和甲醇氧化羰基化反应过程的,昂贵的气化形式和利用non-liked有害物质使过程。乙二醇(EG)的大规模合成物质和碳酸二甲酯(DMC)自然亲切混合材料的重要essentialness基本企业和新企业。绿色过程的改进设计的协同生产如和DMC深刻需要习惯课程包括高活力利用率或有害物质。有效的机械设计基于离子液体的绿色过程有一些的兴趣点。 To start with, the bolstered ionic fluid dependent on synergistic reactant impact in a fixed bed keeps away from vitality utilization and the loss of impetus, contrasted and conventional procedures in which the detachment of ethylene carbonate and impetus cost a great deal of vitality. Second, receptive refining breaks the harmony of the transesterification response and changes over all ethylene carbonate, consequently improving transformation. This is more clear than utilizing a progression of fixed bed reactors and ethylene carbonate hydration reactor. Third, vitality utilization is diminished (20%~30%) because of the warmth incorporation framework contrasted and customary procedure of the coproduction of propylene glycol and dimethyl carbonate. At last, CO2 discharged from the upstream of ethylene oxidation plant is used in the new procedure, a major bit of leeway from a biological perspective, contrasted and conventional procedure of the hydration of ethylene oxide. This green substance building innovation has been pushed to commercialization. A 33,000 t/a, modern plants are currently effectively working. In light of its monetary expense and natural benevolent, the new procedure is accepted to be a serious innovation for delivering ethylene glycol and dimethyl carbonate.