Production of ethylbenzene
AssigneeMobil Oil Corporation
InventorsPochen Chu, Michael E. Landis, Quang N. Le
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Abstract
Ethylbenzene is produced by the alkylation of benzene with ethylene in the presence of an alkylation catalyst having a particular structure defined by its X-ray diffraction pattern. A preferred catalyst is the zeolite MCM-22. The process is typically carried out at a temperature of 300.degree. to 1000.degree. F. but the catalyst provides sufficient activity for the reaction to be carried out at temperatures below 700.degree. F. Liquid phase operation is preferred, giving a lower yield of polyethylated products. The use of the selected catalyst also results in a reduction of the xylene impurity level to values below 500 ppm in the product.
Claims11
A process for the production of ethylbenzene, said process comprising alkylating benzene with ethylene under liquid phase conditions in the presence of a solid, porous acidic alkylation catalyst comprising a crystalline material characterized by an X-ray diffraction pattern including values substantially as set out in Table 1 of the specification.
Dependencies are inferred from the claim text.