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loser_zhu

木虫 (小有名气)

[求助] 求一段加氢方面的英译汉

Therefore, subsequent reactions of DME over strong acid sites to form light olefins were reduced by sodium ion exchange. Thus, Na-H-ZSM-5(30) gave ahigher selectivity for DME than H-ZSM-5. Our results are in goodagreement with the above findings and the presence of moderately strong Bronsted acid sites in AU explains its higher selectivity ascompared to the zeolite samples.
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liubencai

木虫之王 (文坛精英)

【答案】应助回帖

loser_zhu(金币+22, 翻译EPI+1): 2011-08-21 15:27:09
因此,通过钠离子的交换减少了在较强的酸性点二甲醚随后的反应,后者形成了低分子量烯烃。因此,Na-H-ZSM-5(30)对二甲醚的选择性比H-ZSM-5更高。我们的研究结果与上述的发现很好的一致,在AU中中等强度的质子酸酸性点的存在说明,与沸石样品相比它有更高的选择性。
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2楼2011-08-21 10:48:50
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