摘要:
A method of forming composite zeolite catalyst particles includes combining a silicon source, an aqueous organic structure directing agent having a polyquaternary ammonium compound, water and an aluminum source to form a catalyst gel. The method also includes heating the catalyst gel to form the composite zeolite catalyst particle having an intergrowth region with a mixture of both Mordenite crystals and ZSM-5 crystals. An associated method of making xylene includes feeding heavy reformate to a reactor, the reactor containing the composite zeolite catalyst particles, and producing xylene by simultaneously performing dealkylation and transalkylation of the heavy reformate in the reactor, where each composite zeolite catalyst particle is able to catalyze both the dealkylation and transalkylation reactions.
摘要:
Embodiments of the present disclosure describe a catalyst for dehydrocyclisation of hydrocarbons comprising a suitable support and an organometallic complex or a coordination compound including at least a dehydrogenation metal, wherein the dehydrogenation metal of the organometallic complex or coordination compound is grafted to a selected site of the suitable support. Embodiments of the present disclosure further describe a method of preparing a dehydrocyclisation catalyst for hydrocarbons comprising grafting a dehydrogenation metal of an organometallic complex or coordination compound to a selected site of a suitable support to form the dehydrocyclisation catalyst. Another embodiment of the present disclosure is a method of dehydrocyclisation of hydrocarbons comprising contacting a hydrocarbon with a dehydrocyclisation catalyst to convert the hydrocarbon to an aromatic compound, wherein the dehydrocyclisation catalyst includes a dehydrogenation metal grafted to a selected site of a suitable support.
摘要:
Methods and corresponding catalysts are provided for conversion of an aromatics feed containing C 8+ aromatics, particularly C 9+ aromatics, to form a converted product mixture comprising, e.g., benzene and/or xylenes. The aromatic feed can be converted in the presence of a catalyst that includes a mixture of a first zeolite having an MEL framework, such as ZSM- 11, and a second zeolite having a MOR framework, such as mordenite, particularly a mordenite synthesized using TEA or MTEA as a stmcture directing agent. The weight ratio of the first zeolite to the second zeolite in the catalyst can be from 0.3 to 1.2, or from 0.3 to 1.1, or from 0.3 to 1.0. The catalyst can further include one or more metals supported on the catalyst, such as a combination of metals.
摘要:
A process for converting one or more C3-C12 oxygenates comprising: contacting a feed, which feed comprises one or more C3- C12 oxygenates, with hydrogen at a hydrogen partial pressure of more than 1.0 MegaPascal in the presence of a sulphided carbon-carbon coupling catalyst; wherein the carbon-carbon coupling catalyst comprises equal to or more than 60wt% of a zeolite and in the range from equal to or more than 0.1 %wt to equal to or less than 10wt% of a hydrogenation metal, based on the total weight of the carbon-carbon coupling catalyst; and wherein the zeolite comprises 10-membered and/or 12- membered ring channels and a Silica to Alumina molar Ratio (SAR) in the range from equal to or more than 10 to equal to or less than 300.
摘要:
This invention relates to a method of producing aromatics and light paraffins from hydrocarbonaceous oils derived from oil, coal or wood, including partially saturating and hydrocracking the oils derived from oil in a hydrogenation and reaction area, separating them depending on the number of carbons, recirculating heavy oils having 11 or more carbons to the hydrogenation and reaction area, feeding oils suitable for producing BTX to an aromatic separation process and a transalkylation process to recover aromatics, and feeding hydrocarbonaceous components having 5 or fewer carbons to a light separation process, thus obtaining light paraffins.
摘要:
A process for producing an aromatization catalyst is provided. The process comprises contacting an inorganic support with a catalytic metal solution to deposit a catalytic metal onto the inorganic support to obtain the aromatization catalyst and carburizing the aromatization catalyst. The catalytic metal comprises chromium, cobalt, gallium, iron, magnesium, molybdenum, vanadium, zinc, or a combination comprising at least one of the foregoing, preferably molybdenum. The inorganic support comprises a zeolite and a silica to alumina molar ratio of the zeolite is 10 to 50, preferably 13 to 30. The pH of the catalytic metal solution is greater than or equal to 9, or greater than or equal to 10.