Exxonmobil Chemical Patents Inc.

Exxonmobil Research and Engineering Company

David R Slim

Robert J Falkiner

Bryan M Knickerbocker

Gordon Bryce McGarvey

Mark A Nierode

Keng-Fai Kuan

May-Ru Chen

David B Looney

Mark D Thompson

Grant H Schumacher

Mary M Rethwisch

Ernest V Vilcsak

Disclosed are processes for converting an alkyne to an olefin comprising feeding a molecular-oxygen-containing gas stream into a converting zone of an alkyne converter along with an alkyn-containing feed mixture comprising hydrocarbons and molecular hydrogen to contact the converting catalyst. The converting catalyst can be regenerated online as a result.

Processes for converting alkyne to olefin

A method for the reduction of corrosion in a treatment unit acid used for separating hydrogen sulfide from and acid gas stream using an alkaline absorption solution. Ions comprising the Sand/or HSions formed by the absorption of the hydrogen sulfide in the absorbent solution are subjected to in situ electrochemical oxidization to form polysulfide ions which form a protective coating on the surfaces of the unit.

Corrosion control in acid gas removal equipment by the situ generation of polysulfide ions

Methods and systems are provided for the in situ generation of polysulfide ions in a process stream including Sand/or HSions. Methods and systems are also provided to ameliorate corrosion in a process stream containing an acid gas or a scrubbing agent solvent, and abate mercury and cyanide in process streams containing a scrubbing agent solvent.

In situ generation of polysulfide ions using elemental sulfur for improved corrosion control, cyanide management, mercury management, arsine management and performance and reliability of acid gas removal equipment

A method for removing polymer from an acid gas treating system comprising contacting an acid gas containing stream with an aqueous alkanolamine solution and hydrocarbon solvent to form a mixture of an alkanolamine rich solution having the acid gases or byproducts thereof contained therein and the hydrocarbon solvent, where the hydrocarbon solvent has about 60 to 100 volume % aromatics content; and about 50 to 85 volume % two ring aromatic content, based on the total volume of the solvent.

Method for removing polymer from an acid gas treating system

Growing community of inventors

Sarnia, Canada

David R Slim