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AssigneeHaldor TopsøE A/S
InventorsPoul Erik HØJLUND NIELSEN, Rasmus Munksgård NIELSEN, Brian Kjærgaard OLSEN
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The invention relates to a process for producing a product gas comprising acetonitrile and/or hydrogen cyanide from a feed stream comprising ammonia and methanol over a solid catalyst comprising a support, a first metal and a second metal on the support, wherein the first metal and the second metal are in the form of a chemical compound, wherein the first metal is Fe, Ru or Co and the second metal is Sn, Zn, or Ge. The pressure is ambient pressure or higher and the temperature lies in a range from about 400° C. to about 700° C. Thus, the process for producing acetonitrile and/or hydrogen cyanide from ammonia and methanol may be catalyzed by a single catalyst and may be carried out in a single reactor. The invention also relates to a catalyst, a method for activating a catalyst and use of a catalyst for catalysing production of acetonitrile and/or hydrogen cyanide from ammonia and methanol.
A process for producing a product gas comprising acetonitrile and/or hydrogen cyanide from a feed stream comprising ammonia and methanol over a solid catalyst, wherein the catalyst comprises a support, a first metal and a second metal on said support, wherein said first metal and said second metal are in the form of a chemical compound, wherein said first metal is Fe, Ru, Ni or Co and said second metal is Sn, Zn, or Ge, wherein the catalyst comprises alloys between the first and second metals and/or ternary carbides comprising the first and the second metals, and wherein the pressure is ambient pressure or higher and the temperature lies in a range from about 400° C. to about 700° C.
A catalyst for catalysing reactions producing a product gas comprising acetonitrile from a feed stream comprising ammonia and methanol, said catalyst comprising a support, a first metal and a second metal on said support, wherein said first metal and said second metal are in the form of a chemical compound, where said first metal is Fe, Ru or Co, and where said second metal is Sn, Zn or Ge, wherein the catalyst comprises alloys between the first and second metals and/or ternary carbides comprising the first and the second metals.
A catalyst according to claim 7, wherein said catalyst is an activated catalyst that has been transformed from a non-activated catalyst by passing a feed stream comprising ammonia and methanol over the non-activated catalyst for at least 1 hour at a temperature of between about 400° C. to about 700° C. at a space velocity of at least 2000 h−1.
A catalyst according to claim 10, wherein the activated catalyst comprises CoSn alloys and/or Co3SnCx, wherein x lies in the range from 0.7 to 1.0, on the surface of the catalyst.
Dependencies are inferred from the claim text.