Patent ID: 6534028
Filing Date: 2003-03-18
Classification: B01J,C01C,F28F,Y02P

Abstract:
A method for increasing the yield of hydrocyanic acid by the endothermic reaction of ammonia with methane, the method comprising:providing a reactor for performing an endothermic catalytic reaction, the reactor comprising: a monolithic block, said block having a plurality of heating channels, running lengthwise in the monolithic block, having walls comprised of a heat-resistant and gas-impermeable ceramic material provided with a catalyst coating for catalytic combustion on at least a portion of their length, the catalyst for catalytic combustion comprising at least one member selected from the group consisting of palladium and platinum, and a plurality of reaction channels in the monolithic block, separate from the heating channels, having walls comprised of a heat-resistant and gas-impermeable ceramic material provided with a catalyst for an endothermic catalytic reaction on at least a portion of their length; and placing the combustion catalyst along the length of the heating channels to obtain a yield of the endothermic reaction product during the endothermic reaction, conveying ammonia and methane as reactants for the endothermic catalytic reaction into said reaction channels, and conveying a fuel gas/air mixture into said heating channels in a direction opposite to the direction of the reactants to obtain an endothermic catalytic reaction in said reaction channels to thereby increase the yield of the hydrocyanic acid.