摘要:
A process for reforming a hydrocarbon stream is presented. The process involves splitting a naphtha feedstream to at least two feedstreams and passing each feedstream to separation reformers. The reformers are operated under different conditions to utilize the differences in the reaction properties of the different hydrocarbon components. The process utilizes a common catalyst, and common downstream processes for recovering the desired aromatic compounds generated.
摘要:
One exemplary embodiment can be a process for increasing a mole ratio of methyl to phenyl of one or more aromatic compounds in a feed. The process can include reacting an effective amount of one or more aromatic compounds and an effective amount of one or more aromatic methylating agents to form a product having a mole ratio of methyl to phenyl of at least about 0.1:1 greater than the feed.
摘要:
Transalkylation catalysts containing rhenium and a molecular sieve component comprising an acidic MFI molecular sieve having a Si/Al2 molar ratio of less than 80 and mordenite provide a transalkylation product with a low content of benzene co-boilers. The invention encompasses sulfided catalyst embodiments and processes for making and using the catalysts.
摘要翻译:包含铼和分子筛组分的烷基转移催化剂包含Si / Al 2摩尔比小于80的酸性MFI分子筛和丝光沸石,提供具有低含量苯共沸锅的烷基转移产物。 本发明包括硫化催化剂实施方案和制备和使用该催化剂的方法。
摘要:
Processes for making xylene isomer use integrated transalkylation (102, 204) and isomerization reaction zones (110, 206) to enhance xylene recovery and enable reduction in capital costs and energy consumption.
摘要:
A catalyst, and a process for using the catalyst, that effectively converts and transalkylates indane and C 10 and heavier polycyclic aromatics into C 8 aromatics is herein disclosed. The catalyst comprises a solid-acid support such as mordenite plus a metal component such as rhenium. The catalyst provides excellent conversion of such heavy aromatic species as naphthalene, which is also observed by a decrease in the ending-boiling-point of a hydrocarbon stream passed over the catalyst. The same catalyst is also effective for transalkylation of lighter aromatics, thus yielding a valuable xylenes product stream out of the process.
摘要:
A process for reforming a hydrocarbon stream is presented. The process involves splitting a naphtha feedstream to at least two feedstreams and passing each feedstream to separation reformers. The reformers are operated under different conditions to utilize the differences in the reaction properties of the different hydrocarbon components. The process utilizes a common catalyst, and common downstream processes for recovering the desired aromatic compounds generated.
摘要:
One exemplary embodiment can be a process using an aromatic methylating agent. Generally, the process includes reacting an effective amount of the aromatic methylating agent having at least one of an alkane, a cycloalkane, an alkane radical, and a cycloalkane radical with one or more aromatic compounds. As such, at least one of the one or more aromatic compounds may be converted to one or more higher methyl substituted aromatic compounds to provide a product having a greater mole ratio of methyl to phenyl than a feed.
摘要:
One exemplary embodiment can be a process using an aromatic methylating agent. Generally, the process includes reacting an effective amount of the aromatic methylating agent having at least one of an alkane, a cycloalkane, an alkane radical, and a cycloalkane radical with one or more aromatic compounds. As such, at least one of the one or more aromatic compounds may be converted to one or more higher methyl substituted aromatic compounds to provide a product having a greater mole ratio of methyl to phenyl than a feed.
摘要:
One exemplary embodiment can be a process for increasing a mole ratio of methyl to phenyl of one or more aromatic compounds in a feed. The process can include reacting an effective amount of one or more aromatic compounds and an effective amount of one or more non-aromatic compounds to convert 90%, by weight, of one or more C6+ non-aromatic compounds.
摘要:
A process for preparing a layered catalyst for selectively hydrogenating C 5 -C 11 diolefins in a hydrocarbon mixture to one or more respective C 5 -C 11 monoolefins is disclosed. The layered catalyst comprises an inner core having a first inorganic oxide and an outer layer bonded to the inner core. The outer layer has a non-refractory second inorganic oxide with at least one Group 1-2 metal and at least one Group 8-10 metal dispersed thereon. The catalyst is prepared by coating the inner core with a slurry of the second inorganic oxide, depositing the metals in the presence of a liquid phase, drying the coated core and calcining at 400 - 900°C for a time sufficient to bond the outer layer to eth inner core. The calcined catalyst is reduced under reducing conditions.