Enhancing the production of aromatics in high temperature, high space velocity catalytic conversion of lower molecular weight hydrocarbons to higher molecular weight hydrocarbons

摘要

In a continuous catalytic process for the production of higher molecular weight hydrocarbons from lower molecular weight hydrocarbons in which a lower molecular weight hydrocarbon containing gas is contacted in a reaction zone with a higher molecular weight hydrocarbon synthesis catalyst under C.sub.2 + hydrocarbon synthesis conditions, the improvement comprising adding hydrogen to said gas thereby forming a reaction gas wherein said hydrogen comprises 1 to 25 volume percent of the reaction gas, said synthesis conditions including a temperature greater than 1000° C. and a gas hourly space velocity of greater than 3200 hr.sup.-1.