Apparatus for ammonia cracking hydrogen separation

Abstract

An apparatus is provided for producing hydrogen in an existing steam methane reformer (SMR) via ammonia cracking, the apparatus comprising: an ammonia storage vessel; a furnace having a plurality of reactor tubes and a plurality of burners, wherein the reactor tubes and the burners are in fluid communication with the ammonia storage vessel, such that the reactor tubes and the burners are configured to receive a flow of ammonia gas sourced from the ammonia storage vessel, and catalytically crack the ammonia within the reactor tubes to produce a crude process gas and a flue gas; a plurality of waste heat recovery sections; a boiler feed water preparation system; means for treating the crude process gas in order to reduce the amount of the unreacted ammonia in the crude process gas, thereby resulting in an aqueous ammonia stream and a washed crude stream; and a pressure swing adsorption (PSA) unit disposed downstream the means for treating the crude process gas.