RU99127335A - METHOD FOR INCREASING THE QUALITY OF HYDROCARBONS - Google Patents

METHOD FOR INCREASING THE QUALITY OF HYDROCARBONS

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Publication number
RU99127335A
RU99127335A RU99127335/04A RU99127335A RU99127335A RU 99127335 A RU99127335 A RU 99127335A RU 99127335/04 A RU99127335/04 A RU 99127335/04A RU 99127335 A RU99127335 A RU 99127335A RU 99127335 A RU99127335 A RU 99127335A
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RU
Russia
Prior art keywords
fraction
sulfur
raw materials
range
feedstock
Prior art date
Application number
RU99127335/04A
Other languages
Russian (ru)
Other versions
RU2186830C2 (en
Inventor
Ник Аллен КОЛЛИНЗ
Джеральд Джозеф ТЕЙТМАН
Пол Пирс ДЬЮРАНД
Тимоти Ли ХИЛБЕРТ
Джеффри Чарльз ТРИВЕЛЛА
Original Assignee
Мобил Ойл Корпорейшн
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Publication date
Priority claimed from US08/862,238 external-priority patent/US5865988A/en
Application filed by Мобил Ойл Корпорейшн filed Critical Мобил Ойл Корпорейшн
Publication of RU99127335A publication Critical patent/RU99127335A/en
Application granted granted Critical
Publication of RU2186830C2 publication Critical patent/RU2186830C2/en

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Claims (10)

1. Способ повышения качества серосодержащей олефиновой фракции сырья, кипящей в пределах выкипания бензина, которая содержит парафины, в том числе низкооктановые н-парафины, олефины и ароматические углеводороды, причем способ включает:
в первой стадии, введение в контакт серосодержащей фракции сырья в мягких условиях крекинга, при температуре от 204 - 427oC, с твердым кислотным катализатором, состоящим по существу из цеолита ZSM-5, обладающим кислотной активностью с альфа-значением 20 - 800, для конверсии олефинов, присутствующих в сырье, в ароматические углеводороды и ароматические боковые цепи и для крекинга низкооктановых парафинов и олефинов в сырье с получением промежуточного продукта;
введение в контакт промежуточного продукта с катализатором гидрообессеривания, при комбинации повышенной температуры, повышенного давления и включающей водород атмосферы, для превращения серосодержащих соединений в промежуточном продукте в неорганические сернистые соединения и получения с выходом по крайней мере 90 мас.%, в расчете на вышеуказанную фракцию сырья, обессеренного продукта, включающего обычно жидкую фракцию с пределами выкипания бензина, содержащую менее, чем 50 мас.% С6-С10 .1. The method of improving the quality of the sulfur-containing olefin fraction of the raw material boiling within the boiling of gasoline, which contains paraffins, including low-octane n-paraffins, olefins and aromatic hydrocarbons, and the method includes:
in the first stage, contacting the sulfur-containing fraction of the feedstock under mild cracking conditions, at temperatures from 204 - 427 o C, with a solid acid catalyst consisting essentially of zeolite ZSM-5, having an acid activity with an alpha value of 20 - 800, for converting olefins present in the feedstock into aromatic hydrocarbons and aromatic side chains and for cracking low-octane paraffins and olefins into feedstock to form an intermediate product;
contacting the intermediate product with a hydrodesulfurization catalyst, with a combination of elevated temperature, elevated pressure and hydrogen-containing atmosphere, to convert the sulfur-containing compounds in the intermediate product into inorganic sulfur compounds and to obtain, in a yield of at least 90% by weight, calculated on the above fraction of raw materials , a sweet product, usually including a liquid fraction with boiling range of gasoline, containing less than 50 wt.% C 6 -C 10 . 2. Способ по п.1, где вышеуказанная фракция сырья включает легкую лигроиновую фракцию с пределами выкипания в диапазоне С6 - 166oC.2. The method according to claim 1, where the above fraction of raw materials includes a light naphtha fraction with boiling range in the range of C 6 - 166 o C. 3. Способ по п.1, где вышеуказанная фракция сырья включает всю лигроиновую фракцию с пределами выкипания в диапазоне С5 - 216oC.3. The method according to claim 1, where the above fraction of raw materials includes the entire ligroin fraction with boiling range in the range of C 5 - 216 o C. 4. Способ по п.1, где вышеуказанная фракция сырья включает тяжелую лигроиновую фракцию с пределами выкипания в диапазоне 166 - 260oC.4. The method according to claim 1, where the above fraction of raw materials includes a heavy naphtha fraction with boiling range in the range of 166 - 260 o C. 5. Способ по п.1, где вышеуказанная фракция сырья включает тяжелую лигроиновую фракцию с пределами выкипания в диапазоне 166 - 211oC.5. The method according to claim 1, where the above fraction of raw materials includes a heavy naphtha fraction with boiling range in the range of 166 - 211 o C. 6. Способ по п.1, где вышеуказанное сырье представляет собой олефиновую лигроиновую фрацию каталитического крекинга. 6. The method according to claim 1, where the above raw material is an olefinic ligroin fraction of catalytic cracking. 7. Способ по п. 1, где катализатор гидрообессеривания содержит металл группы VIII и группы VI Периодической системы элементов. 7. A method according to claim 1, wherein the hydrodesulfurization catalyst contains a metal of group VIII and group VI of the Periodic system of elements. 8. Способ по п. 1, где гидрообессеривание осуществляют при давлении 379-10446 кПа, часовой объемной скорости жидкости 0,5-10 и соотношении водорода к углеводородному сырью 89-890 л/л (при нормальных условиях). 8. A method according to claim 1, wherein the hydrodesulfurization is carried out at a pressure of 379-10446 kPa, a fluid hourly space velocity of 0.5-10 and a ratio of hydrogen to hydrocarbon feedstock 89-890 l / l (under normal conditions). 9. Способ по п.1, где гидрообессеривание осуществляют при температуре 260-399oC давлении 2172-6998 кПа, часовой объемной скорости жидкости 1-6 и соотношении водорода к углеводородному сырью 178-445 л/л (при нормальных условиях).9. The method according to claim 1, where the hydrodesulfurization is carried out at a temperature of 260-399 o C pressure 2172-6998 kPa, the hourly space velocity of the liquid 1-6 and the ratio of hydrogen to hydrocarbons 178-445 l / l (under normal conditions). 10. Способ повышения качества серосодержащей фракции сырья, кипящей в пределах выкипания бензина, которая содержит одноядерные ароматические углеводороды и олефины вместе с низкооктановыми парафинами, причем способ включает:
в первой стадии облагораживания, превращение олефинов, присутствующих в сырье, в ароматические углеводороды и ароматические боковые цепи, крекинг низкооктановых парафинов и олефинов в сырье в мягких условиях крекинга, при температуре 204 - 427oC, для получения промежуточного продукта путем введения в контакт серосодержащей лигроиновой фракции сырья с цеолитным катализатором со средним размером пор, состоящим по существу из ZSM-5, обладающим кислотной активностью с альфа-значением 20 - 800;
гидрообессеривание промежуточного продукта в присутствии катализатора гидрообессеривания, при комбинации повышенной температуры, повышенного давления и включающей водород атмосферы, для превращения серосодержащих соединений в промежуточном продукте в неорганическую серу, с получением обессеренного продукта, в котором содержание ароматических соединений составляет не более чем 25%, больше, чем таковое сырья, с общим выходом жидких продуктов по крайней мере 90 об.%, относительно сырья.10. A method of improving the quality of the sulfur-containing fraction of the raw material boiling within the boiling range of gasoline, which contains mononuclear aromatic hydrocarbons and olefins along with low-octane paraffins, and the method includes:
in the first refining stage, the conversion of olefins present in the feedstock into aromatic hydrocarbons and aromatic side chains, the cracking of low-octane paraffins and olefins into the feedstock under mild cracking conditions, at a temperature of 204 - 427 o C, to obtain an intermediate product by contacting the sulfur-containing ligroin raw material fractions with a zeolitic catalyst with an average pore size consisting essentially of ZSM-5, having acid activity with an alpha value of 20-800;
hydrodesulfurization of the intermediate product in the presence of a hydrodesulfurization catalyst, at a combination of elevated temperature, elevated pressure and hydrogen-containing atmosphere, for the conversion of sulfur-containing compounds in the intermediate product into inorganic sulfur, to obtain a desulfurized product, in which the content of aromatic compounds is not more than 25%, more than that of raw materials, with a total yield of liquid products of at least 90 vol.%, relative to the raw materials.
RU99127335/04A 1997-05-23 1998-05-12 Method of increasing quality of sulfur-containing fraction of raw material (versions) RU2186830C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/862,238 1997-05-23
US08/862,238 US5865988A (en) 1995-07-07 1997-05-23 Hydrocarbon upgrading process

Publications (2)

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RU99127335A true RU99127335A (en) 2001-09-10
RU2186830C2 RU2186830C2 (en) 2002-08-10

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US (1) US5865988A (en)
EP (1) EP0983329B1 (en)
KR (1) KR20010012699A (en)
CN (1) CN1264417A (en)
AR (1) AR012736A1 (en)
AT (1) ATE270320T1 (en)
BR (1) BR9809455A (en)
CA (1) CA2290693C (en)
DE (1) DE69824845T2 (en)
ES (1) ES2222589T3 (en)
PL (1) PL336998A1 (en)
RU (1) RU2186830C2 (en)
TW (1) TW555846B (en)
WO (1) WO1998053030A1 (en)

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