The M.w. Kellogg Company

Mobil Oil Corporation

Maury I Schlossman

Phillip Kent Niccum

Allen R Hansen

Steven C Heidenreich

Suisheng M Dou

William J Hillier

Christiaan P Van Dijk

Walter A Cronkright

Aaage Solbakken

A nozzle, and FCC process using the nozzle for atomizing heavy feed to a riser reactor, are disclosed. A liquid feed stream is atomized by radial out-to-in impingement of atomizing vapor, discharged onto an impingement plug in an annular expansion region, then sprayed through an outlet. Baffles at the expansion region outlet, and an orifice outlet improve feed atomization and feed/FCC catalyst contact in a riser reactor. The nozzle may be used to distribute liquid over other reactor beds, or to add liquid to distillation columns.

Heavy hydrocarbon feed atomization

A process for recovering elemental sulfur from a hydrogen sulfide containing gas stream by reacting the hydrogen sulfide in the gas stream with a buffered aqueous solution enriched in thiosulfate ions at an initial pH between about 4.5 and 6.5 for residence time to sufficiently react a portion of the hydrogen sulfide to elemental sulfur. The elemental sulfur is then removed and the solution now lean in thiosulfate ions is regenerated by the oxidation of the remaining hydrogen sulfide in the gas stream to deplete the hydrogen sulfide from the gas stream and to regenerate the liquid solution for recycling to the reduction zone.

Oxidative removal of hydrogen sulfide from gas streams

Growing community of inventors

Katy, TX, United States of America

Maury I Schlossman