摘要:
A catalyst composition suitable for the conversion of n-butane to butenes. The same catalyst composition that with chlorination is further suitable, when used in the conversion of n-butane, for the production of an increased amount of BTX (benzene-toluene-xylene) and greater selectivity to the production of isobutylenes than attained with the unchlorinated catalyst. A process for the preparation of catalyst compositions suitable for the conversion of n-butane. Use of the catalyst compositions in processes for the conversion of n-butane.
摘要:
A catalyst composition and a process for hydrodealkylating a C.sub.9 + aromatic compound such as, for example, 1,2,4-trimethylbenzene to a C.sub.6 to C.sub.8 aromatic hydrocarbon such as a xylene are disclosed. The composition comprises a zeolite, a metal oxide, and an activity modifier selected from the group consisting of silicon oxides, sulfur oxides, phosphorus oxides, boron oxides, magnesium oxides, tin oxides, titanium oxides, zirconium oxides, germanium oxides, indium oxides, lanthanum oxides, cesium oxides, and combinations of any two or more thereof. The process comprises contacting a fluid which comprises a C.sub.9 + aromatic compound with the catalyst composition under a condition sufficient to effect the conversion of a C.sub.9 + aromatic compound to a C.sub.6 to C.sub.8 aromatic hydrocarbon.
摘要:
A composition is prepared by a method which comprises mixing a first solid material comprising a platinum group metal, a rhenium component, a porous carrier material and, optionally, a halogen component and a second solid material comprising silica and bismuth. The thus-obtained composition is employed as a catalyst in the conversion of hydrocarbons to aromatics.In an alternate embodiment, hydrocarbons are converted to aromatics by sequentially contacting the hydrocarbons with the first solid material and then the second solid material.
摘要:
A novel zeolite catalyst composition comprising a mixture of a zeolite, a binder, and a zinc borate compound wherein such mixture is calcined or treated with steam. Preferably, the zeolite has not been treated with an acid. Also provided is a process of making such composition, a product by such process, and the use thereof in the conversion of a hydrocarbon-containing fluid such as a gasoline-boiling range fluid or coker naphtha. Use of such zeolite in the conversion of a hydrocarbon-containing fluid also includes pre-treating such hydrocarbon-containing fluid with a nitrogen removal medium such as ion-exchange resin.
摘要:
A catalyst composition and a hydrocarbon conversion process are disclosed. The composition comprises a zeolite and a Group VIII metal. The process comprises contacting a fluid which comprises a hydrocarbon such as fuel oil and optionally a sulfur compound with the catalyst composition under a condition sufficient to effect the conversion of the hydrocarbon to benzene, toluene, a xylene, or combinations thereof. Also disclosed is a process for producing the catalyst composition which comprises contacting a zeolite with a Group VIII compound followed by heating the resulting Group VIII compound-containing zeolite under a reducing atmosphere.
摘要:
A catalyst, method for preparing the catalyst, and method for using the catalyst having improved para-selectivity in the conversion of alkyl-substituted benzene to para-dialkyl-substituted benzene. The catalyst being prepared by calcining a starting zeolite material, selectivating the calcined zeolite using a silicon-containing selectivating agent, physically mixing the calcined and selectivated zeolite with a binder, shaping the resulting zeolitic physical blend into a form suitable for use in a hydrocarbon conversion process, selectivating the shaped zeolitic physical blend using a silicon-containing selectivating agent, and calcining the selectivated shaped zeolitic physical blend.
摘要:
A catalyst composition, a process for producing the composition, and a hydrotreating process for converting a hydrocarbon stream such as, for example, gasoline, to olefins and C.sub.6 to C.sub.8 aromatic hydrocarbons such as toluene and xylenes are disclosed. The catalyst composition comprises a zeolite, a clay, and a promoter. The process for producing the composition comprises the steps: (1) combining a zeolite with a clay and a promoter under a condition sufficient to bind the clay to the zeolite to produce a clay-bound zeolite; and (2) heating the clay-bound zeolite to produce a modified zeolite. The hydrotreating process comprises contacting a hydrocarbon stream with the catalyst composition under a condition sufficient to effect the conversion of a hydrocarbon to an olefin and a C.sub.6 to C.sub.8 aromatic hydrocarbon.
摘要:
A catalyst composition and an ethylbenzene isomerization process are disclosed. The composition comprises a silylated zeolite and a promoter comprising a Group VIII metal. The process comprises contacting a fluid which comprises ethylbenzene and at least one xylene with the catalyst composition under a condition sufficient to effect the conversion of ethylbenzene to a xylene. Also disclosed is a process for producing the catalyst composition.
摘要:
A catalyst system comprising a silylated silicoaluminophosphate composition, and methods of preparing such catalyst system, are disclosed. The thus-obtained catalyst system is employed as a catalyst in the conversion of a hydrocarbon feedstock comprising oxygenated hydrocarbons to olefins.
摘要:
A catalyst composition, a process for producing the composition and a hydrocarbon conversion process for converting a C.sub.9 + aromatic compound to a C.sub.6 to C.sub.8 aromatic hydrocarbon such as a xylene are disclosed. The composition comprises a zeolite having impregnated thereon a activity promoter selected from the group consisting of molybdenum, molybdenum oxides, lanthanum, lanthanum oxides, and combinations of two or more thereof. The composition can be produced by incorporating the activity promoter into the zeolite. The hydrocarbon conversion process comprises contacting a fluid which comprises a C.sub.9 + aromatic compound with the catalyst composition under a condition sufficient to effect the conversion of a C.sub.9 + aromatic compound to a C.sub.6 to C.sub.8 aromatic hydrocarbon.