“Shell Middle Distillate Synthesis process”如何翻 ...？ 对楼主锲而不舍的精神十分敬佩，建议你去相应的专业版块发帖，应该有更针对性的专业回答。 在网上找到了一篇shell人士的相关文章，见 http:///pcs/acsfuel/preprint%20archive/files/39_4_washingto ... hi olivetree, do you know the so-called asf (anderson-schulz-flory) distribution? if you do, you would not say "only a small fraction of hydrocarbons falls in carbon 12-20". i do not know the details of shell technology. however, if you do calculation based on asf distribution, you will find that the carbon 12-20 from stage 2 should not be less than those from stage 3. that is also the reason why i think the final products are from both stage 2 and stage 3. i worked around the fischer-tropsch synthesis for two years. my reply is not based on a report from shell or some newspaper, but based on my analysis and knowledge from the review of hundreds of scientific literatures and my own two-year work. furthermore, the description from shell or newspaper should be mainly for advertising purposes and, therefore, could be misleading for technology research. the content, like what percentage of products is from stage 2 and what percentage from stage 3, should be hidden as technical secrecy. 查看更多
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