Process and reactor for the preparation of hydrogen and carbon monoxide rich gas

Abstract

Process for suppression of soot formation in the preparation of hydrogen and/or carbon monoxide rich gas by partial oxidation of a hydrocarbon feedstock, comprising the steps of in a reactor with an upper and a lower portion, arranging at least on surface of the reactor upper portion catalytic material being active in steam reforming of hydrocarbon; introducing the feedstock and an oxygen containing atmosphere into the upper portion of the reactor; partially oxidizing the feedstock with oxygen in the upper portion of the reactor; and contacting a part of the partially oxidized feedstock with the reforming catalyst in the reactor upper portion.

1 . Process for suppression of soot formation in the preparation of hydrogen and/or carbon monoxide rich gas by partial oxidation of a hydrocarbon feedstock, comprising the steps of 
 in a reactor with an upper and a lower portion, arranging at least on surface of the reactor upper portion catalytic material being active in steam reforming of hydrocarbon;    introducing the feedstock and an oxygen-containing atmosphere into the upper portion of the reactor;    partially oxidising the feedstock with oxygen in the upper portion of the reactor; and    contacting a part of the partially oxidised feedstock with the reforming catalyst in the reactor upper portion.    
     
     
         2 . The process of    claim 1   , wherein the partially oxidised feedstock from the upper portion of the reactor is further contacted with a steam reforming catalyst arranged in the lower portion of the reactor.  
     
     
         3 . The process of    claim 1   , wherein the hydrocarbon feedstock and the oxygen containing atmosphere is mixed in a burner before introduction into the upper portion of the reactor.  
     
     
         4 . Use of a process according to anyone of the preceding claims in the suppression of soot formation in a process for the preparation of synthesis gas.  
     
     
         5 . Use of a reactor being provided at least on surface of upper portion of the reactor with a catalyst being active in steam reforming of hydrocarbons for partial oxidation and/or autothermal steam reforming of a hydrocarbon feedstock with reduced soot formation.