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首页> 外文期刊>Journal of Chemical Engineering & Process Technology >Sustainability and Economic Analysis of Propylene Carbonate andPolypropylene Carbonate Production Processes Using CO2 and PropyleneOxide
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Sustainability and Economic Analysis of Propylene Carbonate andPolypropylene Carbonate Production Processes Using CO2 and PropyleneOxide

机译：使用二氧化碳和环氧丙烷生产碳酸丙烯酯和碳酸聚丙烯酯的工艺的可持续性和经济性分析

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Currently, the industrially important polycarbonates are synthesized from bisphenol A and diphenyl carbonate, which are highly toxic and hence other feasible alternatives are preferable. Following the considerable advances on the catalyst for the synthesis of carbonates from CO2 and propylene oxide (PO), industrial scale processes for the productions of propylene carbonate (PC) and polypropylene carbonate (PPC) have been designed and simulated with sustainability and economic analyses. The CO2 is supplied by a nearby bioethanol plant, while the PO from a petrochemical process. The first part of the study is for the production of 200 million lb/year cyclic PC by using 9990 lb/ hr of CO2. Ionic liquid-1-n-ethyl-3-methylimidazolium chloride is used as a catalyst. The net CO2 emission reduction is around ?0.318 lb CO2/lb PC, while the net cost of duty (heating+cooling) is around $1.92×10?3/lb PC. The second part is for the production of 261 million lb/year PPC by using 14523.2 lb/hr CO2. The process uses (salen) CrIIICl complex as catalyst. The net CO2 emission reduction is around ?0.342 lb CO2/lb PPC, while the net cost of duty/lb PPC is around $7.978×10?3/lb PPC. Economic analyses show that the feasibility of the both production plants depends on the selling price of PC and PPC. Both the production plants for PC and PPC are sustainable as they use CO2 and avoid toxic feedstock. Beside the engineering economics, a focused sustainability analysis should also be considered in the feasibility evaluation of chemical process technologies.
机译：当前，工业上重要的聚碳酸酯由高毒性的双酚A和碳酸二苯酯合成，因此优选其他可行的替代方案。随着用于由CO2和环氧丙烷（PO）合成碳酸盐的催化剂取得了长足的进步，已经设计了工业规模的生产碳酸亚丙酯（PC）和碳酸亚丙酯（PPC）的方法，并通过可持续性和经济分析进行了模拟。 CO2由附近的生物乙醇工厂提供，而PO由石化过程提供。研究的第一部分是通过使用9990 lb / hr的二氧化碳来生产2亿lb /年的循环PC。离子液体-1-正乙基-3-甲基咪唑鎓氯化物用作催化剂。净CO2排放减少量约为0.318磅CO2 / lb PC，而净值勤成本（加热+冷却）约为$ 1.92×10-3 / lb PC。第二部分是通过使用14523.2磅/小时的二氧化碳来生产2.61亿磅/年的PPC。该方法使用（salen）CrIIICl配合物作为催化剂。净二氧化碳排放减少量约为0.342磅二氧化碳/磅PPC，而净值勤成本/磅PPC约为$ 7.978×10？3 / lb PPC。经济分析表明，这两个生产厂的可行性取决于PC和PPC的售价。 PC和PPC的生产工厂都是可持续的，因为它们使用二氧化碳并避免有毒原料。除工程经济学外，在化学工艺技术的可行性评估中还应考虑进行重点可持续性分析。

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