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小木虫论坛-学术科研互动平台» 学术交流区» 论文翻译 » 论文翻译求助完结子版 » 200金币求下文改错，谢谢了
北京石油化工学院2026年研究生招生接收调剂公告
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manin8769
mermaid332(金币+1): 2010-04-18 14:05
11楼2010-04-18 03:43:24
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shuwenying

铁虫 (小有名气)
★ ★ ★ ★
mermaid332(金币+20): 谢谢帮忙 2010-04-18 14:06
sirljz(金币+4):谢谢交流 2010-04-19 15:53
Preparation of novel catalyst and the research of new technology for gasoline hydrodesulfurization

Abstract: A novel multi-functional catalyst was prepared and used for hydrodesulphurization of FCC gasoline. The results showed that the catalyst with Mo-Co-Ni multi-metal components and additives increaseincreased the selectivity of hydrodesulphurization and reducereduced the amount of the low olefin. Dual purpose, hydrodesulphurization and reduction of octane number loss, were achieved. Sulfur content in FCC gasoline decreased from 1200 μg/g to 115 μg/g and olefin content fallfell to 20.5 v% from 44.2 v%. The RON loss iswas 0.5 units. The stability test for 2000 hours indicated that the catalyst is very stable. The catalyst was characterized with strong adaptability concluded from the adaptability test for different raw materials.请注意一下时态一致
Key words: desulfurization; olefin; catalyst; octane number
1. Introduction
Harmful substances such as sulphides and CxHy came去掉这个词 from automobile exhaust emissions would have删除 caused改成cause serious pollutions to the environment. In order to reduce the pollution caused by automobile exhaust, the gasoline was cleaning是不是想表达这个意思：石油都经过了净化处理。应说成：the gasoline undergoes purification procedures to reudce pollution in recent years. Olefins, aromatics and sulfides were thought as the harmful substances, so their contents in gasoline were limited repeatedly 1-3.太chiglish了，改成Olefins ... are major pollutent in gasoline, hence numerous researches have focused on reducing the amount of these compounds. Each standard about the contents are shown in Table 1.The standard for the content of the compounds are presented in Table1. Every country has been doing their best to reduce the harmful substances amount.Efforts to reduce the content of these compounds are taking place at all levels of governments worldwide.

这篇文章太让人头痛了。首先，不要用太过Chiglish的表达；其次，别y用翻译工具！！
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12楼2010-04-18 09:50:07
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shuwenying

铁虫 (小有名气)
★ ★ ★
mermaid332(金币+20): 谢谢帮忙，能继续么，水平比我高多了！ 2010-04-18 14:07
sirljz(金币+3):谢谢交流 2010-04-19 15:53
In China, more than 90% mass fraction of sulfur and more than 98% volume fraction of the olefins in motor gasoline are from the FCC (Fluid Catalytic Cracking) gasoline 4-6.改成In China, in the motro gasoline, 90% of sulfer (in weight) and 98% of olefins (in volume) are from FCC.. gasoline Conventional hydrodesulphurization (HDS) method is effective to remove organic sulfur form FCC gasoline, but the alkenes hydrogenation easily generate low-octane saturated group that results in a sharp decline of the octane number. New HDS method is that the FCC gasoline was divided into LCN (Light fraction) and HCN (Heavy fraction), HCN was desulfurized and hydrogenated.这句话结构错误，没有连词就带了好几个复句 The method largely avoided the hydrogenation of the high-octane light olefin in LCN. However, in HDS process, the high-octane olefin in HCN was saturated which resulted inthe loss of the octane number. Therefore, it is important to develop high selective HDS catalyst for reducing to reduce saturation in the hydrogenation process of olefins to control the octane number loss. The foreign new technology of FCC gasoline hydrodesulphurization, such as the technology from Prime-G & Prime-G+(IFP), SCANFining & OCTGAIN (ExxonMobil) and ISAL (UOP), has poor adaptability to the FCC gasoline of high-sulfur (1000~1500 μg/g), high olefins (40~55 v%), low aromatics (13~20 v%) in China. It is necessary to develop new olefin FCC gasoline hydrodesulphurization technology and new catalyst.
In this paper, it is the emphases to reduce the octane number loss in the process of FCC gasoline hydrodesulphurization.This study focused on reducing the amount of octane in the process of FCC gasoline hydrodesulphurization. The components in catalyst were determined. Catalyst performance and stability were studied in the hydrodesulphurization of FCC gasoline. The hydrogenation process conditions were optimized.
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13楼2010-04-18 10:03:47
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accure

金虫 (正式写手)
mermaid332(金币+1): 2010-04-19 08:17
不好意思，我帮不上忙！
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14楼2010-04-18 22:45:16
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kangfulike

无虫 (职业作家)
mermaid332(金币+1): 2010-04-19 08:17
这个文章可以在网上随便发嘛
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15楼2010-04-18 23:00:55
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anuoking23

铁杆木虫 (正式写手)
mermaid332(金币+1): 2010-04-19 08:17
太长了，懒得看，帮顶顶吧~~~~
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16楼2010-04-18 23:06:59
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anuoking23

铁杆木虫 (正式写手)
mermaid332(金币+1): 2010-04-19 08:17
话说有软件可以帮忙参考一下的，如stylewrite
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17楼2010-04-18 23:07:53
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tomoson

铁杆木虫 (著名写手)
mermaid332(金币+1): 2010-04-19 08:17
呵呵 都四牛人哩
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18楼2010-04-18 23:18:31
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holland3

铁杆木虫 (著名写手)
mermaid332(金币+1):没有图亚 2010-04-19 08:18
引用回帖:
Originally posted by guoxiaojing at 2010-04-18 00:11:32:
这个文章可以在网上随便发嘛

就是啊，不怕有人拿走改改替楼主发表了？
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环境-汽车-燃料电池-高分子-化工-环境
19楼2010-04-18 23:20:47
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66451093

银虫 (小有名气)
★ ★ ★
mermaid332(金币+10):xiexie 2010-04-19 08:25
sirljz(金币+3):谢谢交流 2010-04-19 15:54
Preparation of novel catalyst and research of new technology for gasoline hydrodesulfurization

Abstract: A novel multi-functional catalyst is prepared and used for hydrodesulphurization of FCC gasoline. The results show that the catalyst with Mo-Co-Ni multi-metal components and additives increase the selectivity of hydrodesulphurization and reduce he amount of the low olefin. Dual purpose, hydrodesulphurization and reduction of octane number loss, are achieved. Sulfur content in FCC gasoline decreases from 1200 μg/g to 115 μg/g and olefin content falls to 20.5 v% from 44.2 v%. The RON loss is 0.5 units. The stability test for 2000 hours indicates that the catalyst is very stable. The catalyst is characterized with strong adaptability concluded from the adaptability test for different raw materials.
Key words: desulfurization; olefin; catalyst; octane number
1. Introduction
Harmful substances such as sulphides and CxHy come from automobile exhaust emissions  have caused serious pollutions to the environment. In order to reduce the pollution caused by automobile exhaust, the gasoline has been cleaner and cleaner in recent years. Olefins, aromatics and sulfides are thought as the harmful substances, so their contents in gasoline are limited repeatedly [1-3]. Each standard about the contents is shown in Table 1. Every country has been doing their best to reduce the harmful substances amount.
In China, more than 90% mass fraction of sulfur and more than 98% volume fraction of the olefins in motor gasoline are from the FCC (Fluid Catalytic Cracking) gasoline [4-6]. Conventional hydrodesulphurization (HDS) method is effective to remove organic sulfur form FCC gasoline, but the alkenes hydrogenation easily generate low-octane saturated group that results in  a sharp decline of the octane number. New HDS method is that the FCC gasoline is divided into LCN (Light fraction) and HCN (Heavy fraction), HCN is desulfurized and hydrogenated. The method largely avoids the hydrogenation of the high-octane light olefin in LCN. However, in HDS’ process, the high-octane olefin in HCN is saturated which results in the loss of the octane number. Therefore, it is important to develop high selective HDS catalyst for reducing saturation in the hydrogenation process of olefins to control the octane number loss. The foreign new technology of FCC gasoline hydrodesulphurization, such as the technology from Prime-G & Prime-G+(IFP), SCANFining & OCTGAIN (ExxonMobil) and ISAL (UOP), has poor adaptability to the FCC gasoline of high-sulfur (1000~1500 μg/g), high olefins (40~55 v%), low aromatics (13~20 v%) in China. It is necessary to develop new olefin FCC gasoline hydrodesulphurization technology and new catalyst.
In this paper, it is the emphatic to reduce the octane number loss in the process of FCC gasoline hydrodesulphurization. The components in catalyst are determined. Catalyst performance and stability are studied in the hydrodesulphurization of FCC gasoline. The hydrogenation process conditions are optimized.
我也就光改了改时态，还有较少的时态和语法错误。
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20楼2010-04-19 07:50:56
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