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    • 5. 发明申请
    • PROCESS FOR CRACKING HEAVY HYDROCARBON FEED
    • 破碎重油石油进料的工艺
    • WO2012091970A3
    • 2013-04-11
    • PCT/US2011065771
    • 2011-12-19
    • EQUISTAR CHEM LPCOLEMAN STEVEN T
    • COLEMAN STEVEN T
    • C10G11/20
    • C10G11/20C10G51/06C10G69/00C10G2300/301C10G2300/807C10G2400/02C10G2400/20
    • A process for cracking a heavy hydrocarbon feed comprising a vaporization step, a catalytic cracking step, a hydrotreating step, and a steam cracking step is disclosed. The heavy hydrocarbon feed is passed to a first zone of a vaporization unit to separate a first vapor stream and a first liquid stream. The first liquid stream is passed to a second zone of the vaporization unit and contacted with a counter- current steam to produce a second vapor stream and a second liquid stream. The first vapor stream and the second vapor stream are cracked in the radiant section of the steam cracker to produce a cracked effluent. The second liquid stream is cataiyticaily cracked to produce a cracked product. The cracked product is distilled to produce a overhead stream, a light cycle oil, and a heavy cycle oil. The light cycle oil is reacted with hydrogen in the presence of a catalyst to produce a hydrotreated light cycle oil. The hydrotreated light cycle oil and the overhead stream are fed to the vaporization unit.
    • 公开了一种用于裂化重质烃进料的方法,包括蒸发步骤,催化裂化步骤,加氢处理步骤和蒸汽裂解步骤。 将重质烃进料通入蒸发单元的第一区域以分离第一蒸气流和第一液体流。 将第一液体流送到蒸发单元的第二区域并与逆流蒸汽接触以产生第二蒸气流和第二液体流。 第一蒸汽流和第二蒸汽流在蒸汽裂解器的辐射部分中裂开以产生裂化流出物。 第二液体流被裂化产生破裂产物。 将裂化产物蒸馏以产生塔顶馏出物流,轻循环油和重循环油。 轻链循环油在催化剂存在下与氢气反应以产生加氢处理的轻循环油。 将加氢处理的轻循环油和塔顶馏分油进料至汽化装置。