Gasification process and feed system
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United States of America
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Feb 11, 2020
Grant Date -
Oct 4, 2018
app pub date -
Dec 14, 2015
filing date -
Dec 14, 2015
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Abstract
A process for the gasification of a solid carbonaceous feed, the process comprising the steps of: introducing a batch of the solid carbonaceous feed into a sluice vessel, while an internal pressure in the sluice vessel is at a first pressure; introducing at least recycled CO2 into the sluice vessel via one or more gas inlets covered by the solid carbonaceous feed, to pressurize the sluice vessel from the first pressure to a second pressure exceeding the first pressure, during a predetermined time period; closing the one or more gas inlets; opening a feed outlet of the sluice vessel to supply the batch of the solid carbonaceous feed to a feed vessel for feeding the solid carbonaceous feed to a gasification reactor; closing the feed outlet; venting the sluice vessel to reduce the internal pressure to the first pressure; and repeating the process.
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