The Standard Oil Company

Paul E Bott

Wilfrid G Shaw

Dev D Suresh

Michael J Seely

Maria Strada Friedrich

Louis R Trott

Edward J Sockell

Kenneth P Keckler

Albert R Shuki

Vincent G Reiling

Kenneth L Bigler

Steve J Miko

Steven J Rowe

Frank John Kocjancic

Frank J Kojancic

A process for the substantial or complete elimination of ammonium sulfate generated during the production of acrylonitrile by the direct ammoxidation of propylene/propane, ammonia and an oxygen containing gas (e.g. air) over a fluid bed catalyst wherein the improvement comprises introducing methanol into said reactor in the upper portion of the reactor at a location where the methanol reacts with at least a portion if not substantially all of the excess ammonia without affecting the acrylonitrile yield. Preferably, methanol is introduced into the reactor at below its coking temperature. In particular, when an oxygen lean fluid bed catalyst is utilized, an additional oxygen containing gas is introduced into the reaction at a distance between about 8 to 14 inches from the methanol feed location.

Process for elimination of waste material during manufacture of

A process for the substantial or complete elimination of ammonium sulfate generated during the production of acrylonitrile by the direct ammoxidation of propylene/propane, ammonia and an oxygen containing gas (e.g. air) over a fluid bed catalyst wherein the improvement comprises introducing an organic compound(s) into said reactor at a location where the compound(s) reacts with substantially all of the excess ammonia without affecting the acrylonitrile yield. Preferably, the organic compound is methanol which is introduced into the reactor at below its coking temperature.

Growing community of inventors

Victoria, TX, United States of America

Paul E Bott