Air Products and Chemicals, Inc.

James Richard O'Leary

Diwakar Garg

Shankar Nataraj

Kevin Boyle Fogash

William Robert Licht

Sanjay Mehta

Eugene S Genkin

Xiang-Dong Peng

Blaine Edward Herb

Krishnakumar Jambunathan

A method for generating hydrogen in a production facility having a catalytic steam reformer, a boiler downstream of the catalytic steam reformer, optionally having a prereformer, and optionally having a shift reactor, wherein the reformer feed gas mixture is formed using a steam-containing recycle gas mixture which was formed from boiler effluent. The boiler generates steam which may be used to form the reformer feed gas mixture, used elsewhere in the production facility, and/or used for export steam.

Catalytic steam reforming with recycle

A catalyst for adiabatically prereforming a feedstock wherein the catalyst comprises 1 to 20 wt. % nickel and 0.4 to 5 wt. % potassium on a calcium aluminate support. The overall catalyst porosity is greater than 40% with greater than 70% of the overall catalyst porosity contributed by pores having pore diameters of at least 500 &#x212b;, and having a median pore diameter greater than 2600 &#x212b;, and having a nitrogen BET area less than 6.5 m/g.

Catalyst for improving the adiabatic steam reforming of natural gas

A process for adiabatically prereforming a feedstock, includes: providing an adiabatic reactor; providing a catalyst containing 1-20 wt. % nickel and 0.4-5 wt. % potassium, wherein the catalyst has an overall catalyst porosity of 25-50% with 20-80% of the overall catalyst porosity contributed by pores having pore diameters of at least 500 &#x212b;; providing the feedstock containing natural gas and steam, wherein the natural gas contains an initial concentration of higher hydrocarbons, and a ratio of steam to natural gas in the feedstock is from 1.5:1 to 5:1; preheating the feedstock to a temperature of 300-700&#xb0; C. to provide a heated feedstock; providing the heated feedstock to the reactor; and producing a product containing hydrogen, carbon monoxide, carbon dioxide, unreacted methane, and steam, wherein said product contains a reduced concentration of higher hydrocarbons less than the initial concentration of higher hydrocarbons, to prereform the feedstock.

Catalyst and process for improving the adiabatic steam-reforming of natural gas

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Allentown, PA, United States of America

James Richard O'Leary