Shell Oil Comapny

Jack E Stanley

Donald E Hardesty

Wesley A Parker

An apparatus for reducing the pressure drop in a riser reactor equipped with a horizontal tee joint connection which uses a fluid injection means selectively located at a point juxtaposed to the connection of the horizontal and vertical tubes to prohibit fine particle catalysts from backflow down the elongated riser reactor which omission thereby provides (1) an easy upflow of catalysts and hydrocarbon vapors through the riser reactor and (2) an incentive for the flow of particles up through the elongated riser and transfer laterally to the horizontal tee joint connection.

Selective placement of fluid injection in a riser reactor equipped with

An apparatus to reduce the pressure drop in a riser reactor equipped with a horizontal tee joint connection which uses a mechanical implant located at a point juxtaposed the connection of the horizontal and vertical tubes to prohibit fine particle catalysts from backflow down through the elongated riser reactor which thereby provides an easy upflow of catalysts through the riser reactor.

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Katy, TX, United States of America

Jack E Stanley