Patent ID: 6433235
Filing Date: 2002-08-13
Classification: C07C,C10G

Abstract:
The process of converting a normally gaseous, methane-containing, hydrocarbon feed to a normally liquid hydrocarbon product which comprises:a) separating the methane component of the feed from the heavier hydrocarbon component, b) cracking the higher hydrocarbon component resulting from the separation of the methane component and heavier hydrocarbon component of the feed at a relatively low temperature in a low temperature cracking zone, c) optionally cracking a portion of the methane component of the feed at a relatively high temperature in a high temperature cracking zone, d) passing the effluent from the low temperature cracking zone mixed with any effluent from the high temperature cracking zone to a cracked gas separation zone wherein is produced a light fraction comprising hydrogen and a heavier hydrocarbon fraction comprising unsaturated hydrocarbons, e) passing the heavier hydrocarbon fraction, mixed with methane to an alkylation zone wherein the heavier hydrocarbon product is reacted with the methane in the presence of an acidic alkylation catalyst, f) separating the resulting alkylation zone reaction products in a liquid zone product separator to produce a light product mixture and a heavier product of normally liquid hydrocarbon, and g) recycling a portion of the light product of the alkylation zone product separator to the cracked gas separation zone.