L-type zeolite and catalyst for the production of aromatic hydrocarbons
AssigneeIdemitsu Kosan Co., Ltd.
InventorsHiroshi Ohashi, Hisashi Katsuno, Michio Sugimoto
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Abstract
There are disclosed a new L-type zeolite and a catalyst comprising said zeolite, having a high and persistent catalytic activity for a long-term production of aromatic hydrocarbon and a process for efficiently producing aromatic hydrocarbons from nonaromatic hydrocarbon by the use of the catalyst. The L-type zeolite with both platinum components and halogen components supported thereon, has a peak intensity of 0.4 or less as determined by XANES and a small amount of dealuminization.
Claims14
A L-type zeolite comprising both a platinum-containing compound and a halogen-containing compound each supported on said zeolite, said zeolite simultaneously satisfies the conditions that (i) said platinum-containing compound supported on said zeolite has a peak intensity of 0.4 or less as determined by X-ray absorption near edge structure (XANES) analysis and (ii) the amount of dealuminization in said zeolite is 3% by weight or less based on the total amount of aluminum therein.
The catalyst of claim 10, wherein the amount of dealumination is 0 to 1.0% or less.
Dependencies are inferred from the claim text.