KR930017619A - Regeneration of Non-acidic Catalysts Used in High Strength Treatment Process for Dehydrogenation of Light Hydrocarbons - Google Patents

Abstract

The present invention is a method of dehydrogenating a hydrocarbon selected from the group consisting of propane and butane in the presence of a catalyst containing platinum and a non-acidic carrier material, wherein the dehydrogenation process is carried out under high-intensity operating conditions to promote rapid deoxidation of the catalyst. In the method comprising agglomerating the platinum on the carrier material and accumulating coke on the catalyst, the method of regenerating the generated deactivation catalyst is carried out through combustion by contacting the deactivation catalyst with an oxygen-containing gas. Removing the coke, drying the coke-free catalyst by contacting it with a gas having a temperature in the range of 800 to 1100 ° F. (426 to 593 ° C.) and an oxygen concentration of 21 to 39 mol%, containing chlorine and oxygen concentration. The catalyst by contacting the redispersed gas having a value of 21 to 39 mol% with the dry catalyst Redispersing the platinum on the bed, the resulting catalyst with the redispersed platinum in the reducing zone was subjected to water at a temperature of 800 to 1000 ° F. (426 to 538 ° C.) and a pressure of 5 to 125 psing (136 to 963 kPa). Contacting a small amount of abundant gas and recovering the regenerated dehydrogenation catalyst from the reduction zone.

Description

Regeneration of Non-acidic Catalysts Used in High Strength Treatment Process for Dehydrogenation of Light Hydrocarbons

Since this is an open matter, no full text was included.

1 is a diagram of a playback band installed in accordance with the present invention and some facilities associated therewith. FIG. 2 is an elevation view of a partial cross section of the reproduction band shown in FIG.

Claims (6)

A method of dehydrogenating a hydrocarbon selected from the group consisting of propane and butane in the presence of a catalyst comprising platinum and a non-acidic carrier material, wherein the dehydrogenation process is carried out under high-intensity operating conditions to promote rapid deoxidation of the catalyst, A method comprising agglomerating the platinum in a phase and accumulating coke on the catalyst, wherein the method of regenerating the deactivated catalyst produced removes coke through combustion by contacting the deactivation catalyst with an oxygen containing gas. Step, drying the coke-free catalyst by contacting it with a gas having a temperature in the range of 800 to 1100 ° F. (426 to 593 ° C.) and an oxygen concentration of 21 to 39 mol%, containing chlorine and having an oxygen concentration of 21 to 39 The molten% redispersed gas was brought into contact with the dry catalyst to Milling the chromium, subjecting the resulting catalyst with redispersed platinum to a reduced zone at a temperature of 800 to 1000 ° F. (426 to 538 ° C.) and a pressure of 5 to 125 psing (136 to 963 kPa). Contacting with an enriched gas and recovering the regenerated dehydrogenation catalyst from the reduction zone. The process of claim 1 wherein the regenerated dehydrogenation catalyst is then returned to the hydrocarbon dehydrogenation step. The method according to claim 1 or 2, characterized in that the redispersible gas is almost free of water. The method according to claim 1, 2 or 3, wherein the gas rich in the amount of hydrogen sucked into the reduction zone is almost free of water. 5. The process according to claim 1, wherein the drying step is carried out until the water concentration of the catalyst is below 1% by weight. 6. The method of claim 1, wherein the temperature used in the reduction step is between 900 and 950 ° F. (482 to 510 ° C.). ※ Note: The disclosure is based on the initial application.