Ammonia synthesis process

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United States of America Patent

PATENT NO 8623313
APP PUB NO 20110286907A1
SERIAL NO

13143619

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Abstract

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The invention provides a process for efficient synthesis of ammonia. The process includes a water-splitting step in which water is decomposed to obtain a first source gas comprising hydrogen and oxygen, a first oxygen removal step in which the oxygen contained in the first source gas is at least partially separated and removed by an oxygen separating membrane or hydrogen separating membrane to obtain a second source gas having a lower oxygen concentration than the first source gas, a second oxygen removal step in which the oxygen in the second source gas is reacted with hydrogen to produce water for removal, or is adsorbed onto an adsorption medium for removal, to obtain a third source gas having a lower oxygen concentration than the second source gas, and an ammonia synthesis step in which the hydrogen in the third source gas is reacted with nitrogen to synthesize ammonia.

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Patent Owner(s)

Patent OwnerAddress
TOYOTA JIDOSHA KABUSHIKI KAISHA1 TOYOTA-CHO TOYOTA-SHI AICHI-KEN 471-8571
HITACHI ZOSEN CORPORATIONOSAKA-SHI

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arikawa, Hidekazu Susono, JP 18 165
Hikazudani, Susumu Takatsuki, JP 39 154
Inazumi, Chikashi Kyoto, JP 9 135
Nakamura, Norihiko Mishima, JP 153 1395
Nakanishi, Haruyuki Susono, JP 79 470

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