MECHANICAL PYROLYSIS IN A SHEAR RETORT
    1.
    发明公开
    MECHANICAL PYROLYSIS IN A SHEAR RETORT 审中-公开
    机械热解剪切

    公开(公告)号:EP2496358A1

    公开(公告)日:2012-09-12

    申请号:EP11745461.1

    申请日:2011-06-21

    申请人: McCutchen CO.

    IPC分类号: B04B15/06

    摘要: Mechanical visbreaking and pyrolysis between counter-rotating coaxial centrifugal impellers in a continuous radial counterflow process minimizes wastewater discharges. In an embodiment, a cataclastic shear retort comminutes, shear thins, and shear heats an axial feed, such as tar sand, oil shale, coal tailings, distillation bottoms, or lignite. Pyrolyzing the feedstock in this shear retort yields a product stream of gases, naphthas, and oils which first mixes with the feedstock and then is axially extracted, while spent solids are simultaneously extruded from the periphery as coked devolatilized residue, such as char sand for upgrading soil to terra preta. Recirculation of shear-heated solids in long residence time within the shear retort brings heat from the spent solids at the periphery to the feedstock without an external heated sand loop. CO2 emissions from combustion to heat water for oil extraction are eliminated.

    摘要翻译: 在连续的径向逆流过程中,反向旋转的同轴离心叶轮之间的机械减粘裂化和热解降低了废水排放。 在一个实施方案中,碎裂性剪切蒸馏器粉碎,剪切和剪切加热轴向进料,例如焦油砂,油页岩,煤尾渣,蒸馏塔底产物或褐煤。 在该剪切蒸馏器中热解原料产生气体,石脑油和油的产物流,其首先与原料混合并随后被轴向提取,同时用过的固体同时从外围挤出作为焦化的脱挥发分残余物如焦炭砂以提升 土壤到terra preta。 在剪切反应器内长时间停留的剪切加热固体的再循环将周边废弃固体的热量带入原料而无需外部加热砂环。 消除了从燃烧到热油用于石油开采的二氧化碳排放。