Patent ID: 9428696
Filing Date: 2016-08-30
CPC Classification: C01B,C10G,C10K,Y02P

Claim Text:
1. A process for the production of synthesis gas from a hydrocarbon feedstock comprising: adding steam to the hydrocarbon feedstock to form a mixture of hydrocarbons and steam, passing said mixture through an autothermal reforming stage (ATR) or catalytic partial oxidation (CPO) stage and withdrawing a stream of hot effluent synthesis gas from the ATR or CPO, removing water from said hot effluent synthesis gas to form a dehydrated synthesis gas, and directly recycling at least a portion of said dehydrated synthesis gas into the hydrocarbon feedstock or into said mixture of hydrocarbons and steam, and without passing said dehydrated synthesis gas through a carbon-dioxide removal in the recycle, in which the molar ratio of dehydrated synthesis gas to mixture of hydrocarbons and steam is 0.1 to 2.5.