TWO-STAGE SYNGAS PRODUCTION WITH SEPARATE CHAR AND PRODUCT GAS INPUTS INTO THE SECOND STAGE

    公开(公告)号:US20220073829A1

    公开(公告)日:2022-03-10

    申请号:US17012901

    申请日:2020-09-04

    Abstract: A two-stage syngas production method to produce a final product gas from a carbonaceous material includes producing a first product gas in a first reactor, separating char from the first product gas to produce separated char and char-depleted product gas, and separately reacting the separated char and the char-depleted product gas with an oxygen-containing gas in a second reactor to produce a final product gas. The separated char is introduced into the second reactor above the char-depleted product gas. The solids separation device may include serially connected cyclones, and the separated char may be entrained in a motive fluid in an eductor to produce a char and motive fluid mixture prior to being transferred to the second reactor. A biorefinery method produces a purified product from the final product gas.

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