Autothermal steam reforming process
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United States of America Patent
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Apr 30, 1991
Grant Date -
N/A
app pub date -
Dec 11, 1989
filing date -
Dec 11, 1989
priority date (Note) -
Expired
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Abstract
Ammonia synthesis gas is produced by reaction of steam, an oxidant, and a major portion of fresh hydrocarbon feed in an exothermic catalytic reforming zone to a first reformed gas having very low methane content. The balance of the fresh feed is reacted with steam in an endothermic catalytic reforming zone to a second reformed gas having a low methane content. The first and second reformed gases are combined and passed in indirect heat exchange with reactants in the endothermic reforming zone to provide all of the heat required therein and are then recovered as raw ammonia synthesis gas.
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