Process for cracking ammonia present in a gas containing hydrogen sulphide
AssigneeInstitut Francais du Petrole
InventorsChristian Busson, Thomas Nietsch
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Abstract
A process is described for the catalytic cracking of ammonia present in a fluid containing hydrogen sulphide, in which the fluid is introduced into a reactor comprising a suitable catalyst and a catalytic cracking effluent is recovered. The temperature in the reaction zone is 1000.degree. C. to 1400.degree. C. and a reactor for carrying out the process comprises at least one heating chamber (3, 4) and at least one catalysis chamber (11) in which the ammonia is cracked without cracking the hydrogen sulphide. In a further variation, the reactor comprises at least one catalyst in the spaces defined between the heating elements.
Claims21
A process for the selective catalytic cracking of ammonia present in a fluid consisting essentially of NH.sub.3 or NH.sub.4 OH, and hydrogen sulphide, and optionally H.sub.2 O and HCN, said process comprising introducing said fluid into a reaction zone heated to between 1000.degree. C. and 1400.degree. C. and comprising a selective cracking catalyst, and recovering a catalytic cracking effluent wherein the reaction zone is heated by electric heating or by indirect heat exchange means disposed inside said reaction zone, without the addition of chemical components for supplying heat required for cracking.
A process for the selective catalytic cracking of ammonia present in a fluid consisting essentially of NH.sub.3 or NH.sub.4 H, and hydrogen sulphide, and optionally H.sub.2 O and HCN, said process comprising introducing said fluid into a reaction zone heated to between 1000.degree. C. and 1400.degree. C. and comprising a selective cracking catalyst, and recovering a catalytic cracking effluent, wherein the reaction zone is heated by electric heating or by indirect heat exchange means disposed inside said reaction zone, said fluid being the only fluid entering the reaction zone.
A process for the selective catalytic cracking of ammonia present in a fluid consisting essentially of NH.sub.3 or NH.sub.4 OH, and hydrogen sulphide, and optionally H.sub.2 O and HCN, said process comprising introducing said fluid into a reaction zone heated to between 1000.degree. C. and 1400.degree. C. and comprising a selective cracking catalyst, and recovering a catalytic cracking effluent, wherein said reaction zone is heated by means consisting essentially of electric heating or indirect heat exchange means disposed inside the reaction zone.
Dependencies are inferred from the claim text.