Patent ID: 6205813
Filing Date: 2001-03-27
Classification: F25J,Y02C

Abstract:
A process for the production of fuel and high purity hydrocarbon product comprising:(A) providing a feed comprising nitrogen, methane and carbon dioxide wherein carbon dioxide comprises from 1 to 40 volume percent of the feed;(B) removing carbon dioxide from the feed to produce a carbon dioxide depleted feed;(C) cooling the carbon dioxide depleted feed and passing the cooled carbon dioxide depleted feed into a cryogenic rectification column;(D) separating the carbon dioxide depleted feed by cryogenic rectification within the cryogenic rectification column into fuel and high purity hydrocarbon product; and(E) recovering fuel from the upper portion of the cryogenic rectification column, and recovering high purity hydrocarbon product from the lower portion of the cryogenic rectification column.