Exxon Research and Engineering Company

Exxon Chemical Patents, Inc.

Exxon Research & Engineering (er&e)

Pieter E Gellings

Johannes P Verduijn

Binderless zeolite L particles are prepared by a method in which particles are formed from silica and from 0 to 95 wt % preformed zeolite L crystallites, and the particles are thereafter reacted with an alkaline solution comprising a source of alumina to convert the silica binder to zeolite L. These particles may comprise cylindrical zeolite L crystallites with a mean diameter of at least 0.05 micron in a zeolite L matrix and may be used as catalyst. Also acyclic hydrocarbons are dehydrocyclized and/or isomerized by contacting them at a temperature of from 370.degree. C. to 600.degree. C. with this catalyst incorporating at least one Group VIII metal having dehydrogenating activity to convert at least part of the acyclic hydrocarbons into aromatic hydrocarbons.

Zeolite L catalyst

Hydrocarbon conversion process using binderless zeolite L catalyst

Zeolite L containing caesium is prepared by a process in which said zeolite L is crystallised from a synthesis mixture with a molar composition (expressed as oxides) of:

Zeolite L preparation

Zeolite L use in dehydrocyclisation and isomerisation

Zeolite L containing caesium is prepared by a process in which said zeolite L is crystallized from a synthesis mixture with a molar composition (expressed as oxides) of:

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Oostvoorne, Netherlands

Pieter E Gellings