Kellogg Brown + Root LLC

Robert Burlingame

Larry Gene Hackemesser

Shashi Prakash Singh

Avinash Malhotra

Kamal Gursahani

Jim Gosnell

Tim Weeks

Thomas A Czuppon

Lloyd Edward Cizmar

Laura Beth Aguilar

Felix J Fernandez De La Vega

Joseph H Cho

Charles Durr

Heinz J Kotzot

Reforming exchangers for syngas production are provided. The reforming exchangers can have a shell-and-tube configuration and include a shift catalyst on the shell side of the exchanger to reduce a carbon monoxide concentration in a shell side product gas mixture. Processes for forming syngas using the reforming exchangers are also provided.

Reforming exchanger with integrated shift conversion

Systems and methods for heating a cryogenic fluid are provided. A cryogenic fluid can be heated to provide a partially cryogenic vaporized fluid having a first temperature. The partially vaporized cryogenic fluid can be partially vaporized to provide a second partially vaporized fluid having a second temperature. At least a portion of the second, partially vaporized, cryogenic fluid can be used to heat the cryogenic fluid to the first temperature. The second, partially vaporized, cryogenic fluid can be partially vaporized to provide a substantially vaporized cryogenic fluid having a third temperature.

Three-shell cryogenic fluid heater

A reforming exchanger system for syngas production is provided. The reforming exchanger system can have a first and a second reforming exchanger, each with a shell-and-tube configuration, and a shift reactor located intermediate to the first and second reforming exchangers to reduce carbon monoxide concentration in the outlet gas. Processes for forming syngas using the reforming exchanger systems described herein are also provided.

Reforming exchanger system with intermediate shift conversion

Disclosed are a syngas production process and a reforming exchanger. The process involves passing a first portion of hydrocarbon feed mixed with steam and oxidant through an autothermal catalytic steam reforming zone to form a first reformed gas of reduced hydrocarbon content, passing a second portion of the hydrocarbon feed mixed with steam through an endothermic catalytic steam reforming zone to form a second reformed gas of reduced hydrocarbon content, and mixing the first and second reformed gases and passing the resulting gas mixture through a heat exchange zone for cooling the gas mixture and thereby supplying heat to the endothermic catalytic steam reforming zone. The endothermic catalytic steam reforming zone and the heat exchange zone are respectively disposed tube side and shell side within a shell-and-tube reforming exchanger. The reforming exchangercomprises a plurality of tubespacked with low pressure drop catalyst-bearing monolithic structureswherein an inside diameter of the tubesis less than 4 times a maximum edge dimension of the catalyst structures

Low pressure drop reforming exchanger

A syngas reforming reactor has a shell-and-tube configuration wherein the shell-side fluid flow path through the tube bundle has a longitudinal configuration. The reactor can include a shell-side inlet fluid distributor plate below the lower end of the tube bundle.

Low pressure drop reforming reactor

A syngas reforming reactor has a shell-and-tube configuration wherein the shell-side fluid flow path through the tube bundle has a longitudinal configuration. The reactor can include a shell-side inlet fluid distributor plate below the lower end of the tube bundle, and a flow sleeve in an enlarged-diameter discharge annulus at an upper end adjacent the tube sheet to prevent short-circuiting of the shell-side fluid into the shell-side fluid outlet. The tube bundle can include a plurality of ring baffles and lattice baffles. The longitudinal flow configuration can provide a lower shell-side pressure drop and lower cost compared to a conventional cross-flow reforming exchanger.

Syngas production process and reforming exchanger. The process involves passing a first portion of hydrocarbon feed mixed with steam and oxidant through an autothermal catalytic steam reforming zone to form a first reformed gas of reduced hydrocarbon content, passing a second portion of the hydrocarbon feed mixed with steam through an endothermic catalytic steam reforming zone to form a second reformed gas of reduced hydrocarbon content, and mixing the first and second reformed gases and passing the resulting gas mixture through a heat exchange zone for cooling the gas mixture and thereby supplying heat to the endothermic catalytic steam reforming zone. The endothermic catalytic steam reforming zone and the heat exchange zone are respectively disposed tube side and shell side within a shell-and-tube reforming exchanger. The reforming exchanger comprises a plurality of tubes packed with low pressure drop catalyst-bearing monolithic structures wherein an inside diameter of the tubes is less than 4 times a maximum edge dimension of the catalyst structures.

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Houston, TX, United States of America

Robert Burlingame