Dresser-rand Company

Siemens Energy Global Gmbh & Co. Kg

David Andrew Taylor

Kirk Ryan Lupkes

Paul Morrison Brown

Silvano R Saretto

David James Peer

Mark Joseph Kuzdzal

James M Sorokes

David J Peer

Mark J Kuzdzal

Scott David Wisler

Brian David Massey

Chemical reactor () and method for cracking are disclosed. A process fluid is accelerated with axial impulse impellers (A,B) to a velocity greater than Mach 1 and, in turn, generating a shock wave () in the process fluid by decelerating it in a static diffuser () having diverging diffuser passages (). Temperature increase of the process fluid downstream of the shockwave cracks or splits molecules, such as hydrocarbons entrained in the process fluid, in a single pass, through a unidirectional flow path (F), within a single stage, without recirculating the process fluid for another pass through the same stage. In some embodiments, a system involving at least two turbomachine chemical reactors () may provide multiple successive stages of one or more axial impulse impellers (A,B), paired with a diverging passage, static diffuser ().

Turbomachine chemical reactor and method for cracking

Chemical reactors () and methods crack hydrocarbons in process fluids by accelerating the process fluid to a velocity greater than Mach 1 with an axial impulse impeller () and generating a shock wave () in the process fluid by decelerating it in a static diffuser () having diverging diffuser passages (). Temperature increase of the process fluid downstream of the shockwave cracks the entrained hydrocarbons in a single pass, through a unidirectional flow path (F), within a single stage, without recirculating the process fluid for another pass through the same stage. In some embodiments, the turbomachine chemical reactor () has multiple successive stages of one or more axial impulse impellers (A,B), paired with a diverging passage, static diffuser (). Successive stages crack additional hydrocarbons by successively raising temperature of the flowing process fluid.

Turbomachine chemical reactor and method for cracking hydrocarbons in a process fluid

A compressor may include a casing defining a discharge cavity and a seal cavity. A rotary shaft may be disposed in the casing, and a shaft seal assembly may be disposed in the seal cavity and about the rotary shaft. An impeller may be coupled with and configured to be driven by the rotary shaft. A balance piston may be integral with the impeller and may define the discharge cavity and the seal cavity. A balance piston seal may be disposed about the balance piston such that the balance piston seal and the balance piston define a radial clearance therebetween. The radial clearance may be configured to provide fluid communication from the impeller to the discharge cavity. A heat shield may be disposed in the discharge cavity, and may be configured to prevent the conduction of heat from the discharge cavity to the seal cavity via the casing.

Heat shield for pressure casing

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Issaquah, WA, United States of America

David Andrew Taylor