Halide scavengers for high temperature applications

Details Halide scavengers for high temperature applications Halide scavengers for high temperature applications

B - Operations, Transporting

01

D

B01D 53/68 (2006.01)

Patent

CA 2627227

A composite sorbent is formed which is the reaction product of a solid alkali metal carbonate, rehydratable alumina and water or an aqueous solution of a metal salt. The reaction between the components occurs while forming particulates followed by curing and activation at high temperatures. The alkali metal in the sorbent exhibits a highly reactive and accessible state that is very favorable for various sorption applications. The sorbent is especially useful for removal of HCl and other acid contaminants from gas and liquid hydrocarbon streams at high temperatures.

Selon la présente invention, on forme un absorbant composite qui est le produit de la réaction d'un carbonate de métal alcalin solide, d~une alumine réhydratable et d~eau ou d~une solution aqueuse d~un sel métallique. La réaction entre les composants a lieu lors de la formation de particules suivie du durcissement et de l~activation à des températures élevées. Le métal alcalin dans l~absorbant présente un état fortement réactif et accessible qui est très favorable pour diverses applications de sorption. L~absorbant est particulièrement utile pour éliminer HCl et d'autres contaminants acides dans les flux d~hydrocarbures gazeux et liquides à des températures élevées.

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