Abstract:
PROBLEM TO BE SOLVED: To provide a catalyst which enables a desired conversion treatment associated with selectivity of a desired catalyst by reducing saturation of an aromatic ring and a by-product of a light substance in the catalyst for transalkylation of an alkyl aromatic compound. SOLUTION: The catalyst suitable for transalkylation of the alkyl aromatic compound comprises an effective amount of an acidic molecular sieve as the catalyst, at least 0.05 mass% of rhenium as an element base, and a combination of tin and germanium. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a layered composition which can be used in various hydrocarbon conversion processes.SOLUTION: The composition comprises: an inner core such as a cordierite core; and an outer layer comprising a refractory inorganic oxide, a fibrous component and an inorganic binder. The layer can also contain catalytic metals such as gold and platinum plus other modifiers. The refractory inorganic oxide layer can be alumina, zirconia, titania, etc. while the fibrous component can be titania fibers, silica fibers, carbon fibers, etc. The inorganic oxide binder can be alumina, silica, zirconia, etc. The layered composition is prepared by coating the inner core with a slurry comprising the refractory inorganic oxide, fibrous component, an inorganic binder precursor and an organic binding agent such as polyvinyl alcohol. The composition can be used in various hydrocarbon conversion processes to produce vinyl acetate from ethylene, oxygen, and acetic acid.
Abstract:
A layered composition which can be used in various processes has been developed. The composition comprises an inner core such as a cordierite core and an outer layer comprising a refractory inorganic oxide, a fibrous component and an inorganic binder. The refractory inorganic oxide layer can be alumina, zirconia, titania, etc. while the fibrous component can be titania fibers, silica fibers, carbon fibers, etc. The inorganic oxide binder can be alumina, silica, zirconia, etc. The layer can also contain catalytic metals such as gold and platinum plus other modifiers. The layered composition is prepared by coating the inner core with a slurry comprising the refractory inorganic oxide, fibrous component, an inorganic binder precursor and an organic binding agent such as polyvinyl alcohol. The composition can be used in various hydrocarbon conversion processes.
Abstract:
processo para aumentar uma razão molar de metila para fenila de um ou mais compostos aromáticos em uma alimentação. uma forma de realização exemplar pode ser um processo para aumentar uma razão molar de metila para fenila de um ou mais compostos aromáticos em uma alimentação. o processo pode incluir reagir uma quantidade efetiva de um ou mais compostos aromáticos e uma quantidade efetiva de um ou mais agentes de metilação aromáticos para formar um produto tendo uma razão molar de metila para fenila de pelo menos cerca de 0,1:1 maior do que a alimentação.
Abstract:
The performance of an adsorptive separation process recovering para-xylene from a C8 aromatic hydrocarbon feed mixture is improved by operating the process at higher desorbent purity. The improved performance allows for tradeoffs in other operating parameters and rates or improved product rates. The process preferably employs a barium and potassium exchanged zeolitic molecular sieve as the adsorbent and toluene as the desorbent.
Abstract:
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.
Abstract:
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.
Abstract translation: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。
Abstract:
The amount of the adsorbent needed to recover a set quantity of monomethyl branched C10 - C15 paraffins from a mixture comprising normal paraffins and other nonnormal hydrocarbons such as di-isoparaffins, di-isoolefins, naphthenes and aromatics by simulated moving bed adsorptive separation is reduced by adjusting three operating factors: percentage recovery of the paraffin, operating temperature and cycle time. This reduces the capital cost of the process. The recovered monomethyl hydrocarbons may be used to form a monomethyl branched alkylaromatic hydrocarbon useful as a detergent precursor.