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ankang276金虫 (正式写手)
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[求助]
求校对一段汉译英
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在高压微反装置上，以正十二烷为模型化合物，对Pt/ZSM-22、Pt/ZSM-23和Pt/ZSM-22/ZSM-23催化剂进行了加氢异构反应活性评价，结果表明，在Pt/ZSM-22、Pt/ZSM-23和Pt/ZSM-22/ZSM-23催化剂上，正十二烷的加氢异构反应转化率、裂解物产率、多支链异构体收率均随着反应温度的升高逐渐增大，异构十二烷产率和单支链异构体收率先增加后减少，与Pt/ZSM-22和Pt/ZSM-23催化剂相比较，Pt/ZSM-22/ZSM-23催化剂对长链正构烷烃表现出更好的加氢异构化选择性，产物分布以单支链异构体为主。在200ml加氢评价装置上，以石蜡基200SN脱蜡油、650SN糠醛精制油、蜡下油、加氢裂化尾油、蜡膏和环烷基VGO为原料油，进一步研究了Pt/ZSM-22/ZSM-23催化剂的加氢异构活性、选择性和稳定性，2500小时的反应评价结果表明，Pt/ZSM-22/ZSM-23催化剂具有较好的原料适应性和活性稳定性，能够将不同蜡含量的原料油转化成低倾点、高粘度指数甚至是超高粘度指数的润滑油基础油。 On the high-pressure microreactor device, n-dodecane as a model compound, the hydroisomerization activity evaluation of Pt/ZSM-22, Pt/ZSM-23, and Pt/ZSM-22/ZSM-23 catalyst was carried on, the results indicated that , for the three catalysts, the convertion ratio, yield of cracking products and multi-branched isomers all increased with the increase of reaction temperature,but the yield of i-dodecane and mono-branched isomers first increased and then decreased, compared with Pt/ZSM-22 and Pt/ZSM-23 catalysts, Pt/ZSM-22/ZSM-23 catalyst showed better hydroisomerization selectivity for long chain n-alkanes, products distribution was mainly mono-branched isomers. Hydroisomerization activity,selectivity and stability of Pt/ZSM-22/ZSM-23 catalyst were investigated using the paraffinic 200SN ketone-benzol dewaxing oil, 650SN furfural refined oil , hydrocracking tail oil, foots oil, cerate and naphthenic VGO as feedstocks. The 2500 hours evaluation results indicated that Pt/ZSM-22/ZSM-23 catalyst showed super catalytic performances, including high activity, high hydroisomerization selectivity and broad adaptability to feedstocks. We could obtain low-freezing base oils with high viscosity index or ultrahigh viscosity index in high yield with various wax feedstocks. |
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8814402
至尊木虫 (职业作家)
- 翻译EPI: 509
- 应助: 18 (小学生)
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- 金币: 12916.1
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- 专业: 药物学其他科学问题
【答案】应助回帖
| The hydroisomerization activities of Pt/ZSM-22, Pt/ZSM-23, and Pt/ZSM-22/ZSM-23 catalysts were evaluated on the high-pressure microreactor device with n-dodecane as a model compound. It is indicated that , for the three catalysts, the convertion ratio, yield of cracking products and multi-branched isomers all increased with the increase of reaction temperature, while the yield of i-dodecane and mono-branched isomers increased and then decreased with the increase of reaction temperature, and that Pt/ZSM-22/ZSM-23 catalyst showed better hydroisomerization selectivity for long chain n-alkanes than Pt/ZSM-22 and Pt/ZSM-23 catalysts, and the main products were mono-branched isomers. Hydroisomerization activity, selectivity and stability of Pt/ZSM-22/ZSM-23 catalyst were then investigated on 200ml hydrogenation evaluation device with the paraffinic 200SN ketone-benzol dewaxing oil, 650SN furfural refined oil , hydrocracking tail oil, foots oil, cerate and naphthenic VGO as starting materials. It is indicated from the 2500 hours evaluation results that the Pt/ZSM-22/ZSM-23 catalyst showed preferable catalytic performances, including high activity, high hydroisomerization selectivity and good adaptability to starting materials, and that low-freezing base oils with high viscosity index or even ultrahigh viscosity index can be obtained from various wax starting materials with the Pt/ZSM-22/ZSM-23 catalyst. |
2楼2012-05-03 08:13:46
8814402
至尊木虫 (职业作家)
- 翻译EPI: 509
- 应助: 18 (小学生)
- 贵宾: 0.381
- 金币: 12916.1
- 散金: 47
- 红花: 16
- 帖子: 4183
- 在线: 357.8小时
- 虫号: 1184404
- 注册: 2011-01-06
- 专业: 药物学其他科学问题
【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
ankang276: 金币+30, 翻译EPI+1, ★★★很有帮助 2012-05-03 13:36:22
ankang276: 金币+30, 翻译EPI+1, ★★★很有帮助 2012-05-03 13:36:22
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The hydroisomerization activities of Pt/ZSM-22, Pt/ZSM-23, and Pt/ZSM-22/ZSM-23 catalysts were evaluated on the high-pressure microreactor device with n-dodecane as a model compound. It is indicated that , for the three catalysts, the convertion ratio, yield of cracking products and multi-branched isomers all increased with the increase of reaction temperature, while the yield of i-dodecane and mono-branched isomers increased and then decreased with the increase of reaction temperature, and that Pt/ZSM-22/ZSM-23 catalyst showed better hydroisomerization selectivity for long chain n-alkanes than Pt/ZSM-22 and Pt/ZSM-23 catalysts, and the main products were mono-branched isomers. Hydroisomerization activity, selectivity and stability of Pt/ZSM-22/ZSM-23 catalyst were then investigated on 200ml hydrogenation evaluation device with the paraffinic 200SN ketone-benzol dewaxing oil, 650SN furfural refined oil , hydrocracking tail oil, foots oil, cerate and naphthenic VGO as starting materials. It is indicated from the 2500 hours evaluation results that the Pt/ZSM-22/ZSM-23 catalyst showed preferable catalytic performances, including high activity, high hydroisomerization selectivity and good adaptability to starting materials, and that base oils with low pour points and high viscosity index or even ultrahigh viscosity index can be obtained from various wax starting materials with the Pt/ZSM-22/ZSM-23 catalyst. 最后一句有个小改动 |
3楼2012-05-03 08:24:08
