Method of operating a gasifier

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United States of America Patent

PATENT NO 8574329
APP PUB NO 20100146857A1
SERIAL NO

12337742

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Abstract

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A method of operating a gasifier is provided that envisions dividing the gasifier into multiple zones. A high-calorific-value feedstock with an oxidant is injected in the first zone. The gasifier is operated to substantially consume the oxidant within the first gasification zone. The method of operating the gasifier further includes injecting a low-calorific-value, high-oxygen-content feedstock in a second gasification zone. The low-calorific-value, high-oxygen-content feedstock is devolatilized and gasified in second zone. A method of operation provides for a synergistic co-gasification of the high-calorific-value feedstock and the low-calorific-value, high oxidant content feedstock. The method provides for specific control actions that enable operation of multi-fuel, multizone gasifier.

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Patent Owner(s)

  • GENERAL ELECTRIC COMPANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eiteneer, Boris Nikolaevich Irvine, US 9 126
Jupudi, Ravichandra Srinivasa Bangalore, IN 9 47
Lissianski, Vitali San Juan Capo, US 9 189
Subramanian, Ramanathan Irvine, US 12 73
Wei, Wei Los Angeles, US 495 2828
Zamansky, Vladimir Oceanside, US 22 527

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