REACTOR AND PROCESS FOR GASIFYING AND/OR MELTING OF FEED MATERIALS

    公开(公告)号:US20220025284A1

    公开(公告)日:2022-01-27

    申请号:US17296956

    申请日:2019-11-27

    Inventor: André WEGNER

    Abstract: A reactor enables gasification or melting of waste and additional feed materials. The reactor includes a co-current section with a plenum section and a feed section with a sluice. Feed materials are introduced into the reactor. The reactor further includes a buffer section and a pre-treatment section, which adjoins a bottom of the buffer section to create a cross-sectional enlargement. An intermediate section adjoins the pre-treatment section. An upper oxidation section adjoins a bottom of the intermediate section and includes tuyeres in at least one level. An upper reduction section adjoins a bottom of the upper oxidation section. The reactor further includes a gas outlet section. The reactor further includes a countercurrent section having a conical lower reduction section and a conical lower oxidation section adjoining the conical lower reduction section having at least one tuyere and at least one tapping.

    Sandwich gasification process for high-efficiency conversion of carbonaceous fuels to clean syngas with zero residual carbon discharge

    公开(公告)号:US11220641B2

    公开(公告)日:2022-01-11

    申请号:US16779775

    申请日:2020-02-03

    Abstract: The present invention discloses a gasifier and/or a gasification process that provides a long, uniform temperature zone in the gasifier, regardless of the particle size, chemical composition, and moisture content of the fuel by sandwiching a reduction zones between two oxidation zones. The gasifier and/or gasification process has a char that is more energy-dense and almost devoid of moisture that affords for an additional (or char) oxidation zone with a temperature that is higher than a first oxidation zone which is closer to an evaporation and devolatilization zone. As such, the additional (or char) oxidation zone contributes to augmenting the reduction zone temperature, thereby providing a favorable dual impact in improving syngas composition and near-complete conversion of the tar.

    Method and apparatus for reduction of tar in gasification of carbonaceous materials
    6.
    发明授权
    Method and apparatus for reduction of tar in gasification of carbonaceous materials 有权
    用于还原碳质材料气化焦油的方法和装置

    公开(公告)号:US09353321B2

    公开(公告)日:2016-05-31

    申请号:US14390307

    申请日:2012-04-03

    Abstract: A method and assembly for producing substantially tar free product gas from gasification of carbonaceous material. The assembly preferably includes a first stage gasifier to produce char-ash and tar laden product gas and a second stage gasifier which has a char-ash heating zone, at least one cyclone, and at least one standpipe for the purpose of allowing selective delivery of char-ash to the char-ash heating zone. A char-ash heating zone that utilizes oxidation of char-ash is preferred and this results in the heat required to convert tar, additional yield of product gas, and an oxidized, activated carbon surface to facilitate tar conversion in the riser, thereby reducing the temperature required to achieve the desired tar conversion. Alternatively, external heat is supplied to the heating zone.

    Abstract translation: 一种用于从碳质材料的气化生产基本上无焦油的产物气体的方法和装置。 该组件优选地包括产生焦炭和焦油产品气体的第一级气化器和具有焦炭加热区,至少一个旋流器和至少一个立管的第二级气化器,用于允许选择性地输送 对灰渣加热区的灰渣。 优选使用炭灰氧化的焦炭加热区,这导致转化焦油所需的热量,产物气体的附加产率和氧化的活性碳表面,以促进提升管中的焦油转化,从而减少 实现所需焦油转化所需的温度。 或者,外部热被供应到加热区。

    Gasifier having a slag breaker and method of operating the same
    8.
    发明授权
    Gasifier having a slag breaker and method of operating the same 有权
    具有渣渣的气化器及其操作方法

    公开(公告)号:US09062917B2

    公开(公告)日:2015-06-23

    申请号:US14460034

    申请日:2014-08-14

    Inventor: Gene Offutt

    Abstract: A gasifier comprises an internal chamber, a slag collection region, a slag passageway, a slag breaker, and an actuator. The internal chamber comprises a main combustion region that is configured and adapted to gasify fuel. The slag collection region is located beneath the main combustion region. The slag passageway operatively connects the main combustion region to the slag collection region. The slag breaker comprises a face that is movable relative to the internal chamber. The face is configured and adapted to move within the slag passageway in a manner such that the face contacts and mechanically breaks solidified slag into chunks of solidified slag that then fall into the slag collection region. The actuator is connected to the slag breaker and is configured and adapted to move the face of the slag breaker.

    Abstract translation: 气化器包括内室,炉渣收集区,炉渣通道,炉渣破碎器和致动器。 内部室包括主燃烧区域,其被构造和适于使燃料气化。 渣收集区域位于主燃烧区域的下方。 渣通道可操作地将主燃烧区域连接到炉渣收集区域。 炉渣破碎机包括可相对于内室移动的面。 该表面被构造和适于在炉渣通道内移动,使得该表面接触并机械地将固化的炉渣分解成固化炉渣块,然后落入炉渣收集区域。 致动器连接到炉渣破碎机,并且构造并适于移动炉渣破碎机的表面。

    Vanadium addition to petroleum coke slurries to facilitate deslagging
for controlled oxidation
    9.
    发明授权
    Vanadium addition to petroleum coke slurries to facilitate deslagging for controlled oxidation 失效
    钒添加到石油焦炭浆料中以促进控制氧化的除渣

    公开(公告)号:US5578094A

    公开(公告)日:1996-11-26

    申请号:US365219

    申请日:1994-12-08

    Abstract: A method facilitating the deslagging of a partial oxidation reactor used to produce syngas is disclosed. The slag comprises vanadium trioxide and a siliceous material that accumulate on the interior walls of the partial oxidation reactor as a byproduct of the syngas production. The deslagging is accomplished by controlled oxidation, wherein the vanadium to glass weight ratio is maintained to at least about 3:2, operating the reactor at a temperature of at least about 2000.degree. F, and maintaining controlled oxidation conditions sufficient to convert the vanadium trioxide in the slag to vanadium pentoxide.

    Abstract translation: 公开了一种促进用于制备合成气的部分氧化反应器的脱渣方法。 炉渣包含三氧化二钒和作为合成气生产副产物的部分氧化反应器的内壁上积聚的硅质材料。 脱盐通过受控氧化实现,其中钒与玻璃的重量比保持在至少约3:2,在至少约2000°F的温度下操作反应器,并保持足够的转化三氧化二钒的受控氧化条件 在炉渣中加入五氧化二钒。

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