Environmental groups had argued that its use offered no meaningful reduction in greenhouse gas emissions - in part because of the vast use of energy and water in the ethanol conversion process.
环保团体称玉米乙醇并没有给我们什么有价值的温室气体排放降低，这部分是生产乙醇的能耗和用水过多所致。
The practice process of Fuxin city gas conversion is summarized, and some problems for utilization of coalbed methane are discussed.
总结了阜新市城市燃气转换的实践过程，讨论了煤层气利用的若干问题。
The new hydro conversion catalyst with double function can be applied in hydrogen production and synthetic ammonia process by refinery gas as feed.
新型双功能转化催化剂可应用于以炼厂气为原料的制氢和合成氨工艺。
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