Protection of solid acid catalysts from damage by volatile species
AssigneeUop LLC
InventorsTimur V. Voskoboynikov, Paul T. Barger, John Q. Chen
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Abstract
The invention provides a method to avoid catalyst damage and achieve longer catalyst life by selecting appropriate materials for reactor spacers, liners, catalyst binders, and supports, in particular, by not using crystalline silica-containing and high phosphorus-containing materials, if the presence of even small amount of steam is anticipated. In addition, alkali metals and alkaline earth metals are avoided due to potential damage to the catalyst.
Claims5
A reaction zone for use of an acidic catalyst under reaction conditions including operation of said reaction zone at temperatures from 350° to 650° C. wherein said reaction zone comprises at least one reactor and wherein said reactor surfaces comprise materials selected from the group consisting of silicon, phosphorus, alkali metals and alkali earth metals wherein after said operation of said reaction zone, said reactor surfaces retain sufficient quantities of said materials so as to maintain catalyst performance.
Dependencies are inferred from the claim text.