PROCESS FOR PRODUCING SYNTHESIS GAS

摘要

Process for the production of synthesis gas by catalytic steam reforming of a hydrocarbon containing feedstock in parallel in an autothermal steam reformer and heat exchange reformer, the heat for the steam reforming reactions in the heat exchange reformer being provided by indirect heat exchange with the combined effluent of the heat exchange reformer and a portion of the autothermal steam reformer.

主权项

1. Process for the production of synthesis gas by catalytic steam reforming of hydrocarbon feedstock by parallel arrangement of heat exchange reforming (HER) and autothermal reforming (ATR) comprising: passing a first hydrocarbon feedstock through an autothermal reforming stage and withdrawing an effluent gas of raw synthesis gas; dividing this raw synthesis gas into at least a first and second portion of raw synthesis gas; passing a second hydrocarbon feedstock through the catalyst side of a heat exchange reforming stage and withdrawing a primary reformed synthesis gas; combining a portion or all of the primary reformed gas with the first portion of raw synthesis gas to form a synthesis gas, and passing the synthesis gas through the non-catalyst side of the heat exchange reforming stage to provide heat for the steam reforming reactions in said catalyst side by indirect heat exchange with said synthesis gas; withdrawing from the heat exchange reforming stage a cooled synthesis gas.