The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 17, 1978
Filed:
May. 19, 1975
Donald K Wunderlich, Richardson, TX (US);
Atlantic Richfield Company, Los Angeles, CA (US);
Abstract
A method of removing a contaminant, such as arsenic or selenium, from a synthetic hydrocarbonaceous fluid characterized by contacting the hydrocarbonaceous fluid with a plurality of particles of a specially treated contaminant-removing material that will remove the contaminant, under a reducing atmosphere, such as hydrogen, at an elevated temperature. Also disclosed are methods of preparing the contaminant-removing material, which preferably comprises a high surface area carrier material having one or both of a high pore volume of at least 0.8 cubic centimeters per gram with a major portion of the pore volume having a mean effective pore radius greater than 100 Angstroms (.degree. A) and feeder pores having radii greater than 1,000.degree. A for fluid flow therethrough, and carrying a contaminant-removing (active) material at least adjacent the pores. In one embodiment, the active and carrier materials are co-precipitated for improved results; whereas in another embodiment the active material is distributed through the carrier material by impregnation and calcination.