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    • 7. 发明公开
    • METHOD FOR PRODUCING SINGLE-RING AROMATIC HYDROCARBONS
    • 生产单环芳香烃的方法
    • EP2690159A1
    • 2014-01-29
    • EP12762799.0
    • 2012-03-23
    • JX Nippon Oil & Energy CorporationChiyoda Corporation
    • YANAGAWA, ShinichiroKOBAYASHI, MasahideIDA, RyojiYASUI, SusumuSUGI, YoshishigeFUKUI, AtsushiNAGUMO, Atsuro
    • C10G69/04C10G11/05C10G11/10C10G11/18C10G45/44C07B61/00C07C4/18C07C5/13C07C15/04C07C15/06C07C15/08
    • C07C4/06C10G69/04C10G69/10C10G2300/4081C10G2400/30Y02P20/582
    • A method for producing monocyclic aromatic hydrocarbons includes a cracking/reforming reaction step of introducing the feedstock oil into a cracking/reforming reactor, bringing the feedstock oil into contact with the catalyst, and causing the feedstock oil to react, thereby obtaining a product, a purification/recovery step of purifying and recovering the monocyclic aromatic hydrocarbons separated from the product produced in the cracking/reforming reaction step, a hydrogenation reaction step of hydrogenating a heavy fraction separated from the product produced in the cracking/reforming reaction step, and a recycling step of returning a hydrogenation reactant of the heavy fraction obtained in the hydrogenation reaction step to the cracking/reforming reaction step. In the recycling step, the hydrogenation reactant of the heavy fraction is introduced at a location different from an introduction location of the feedstock oil into the cracking/reforming reactor so that a time during which the hydrogenation reactant of the heavy fraction is in contact with the catalyst for monocyclic aromatic hydrocarbon production in the cracking/reforming reactor becomes shorter than a time during which the feedstock oil is in contact with the catalyst for monocyclic aromatic hydrocarbon production in the cracking/reforming reactor.
    • 单环芳香族烃的制造方法包括将原料油导入裂化重整反应器,使原料油与催化剂接触并使原料油反应而得到产物的裂化重整反应工序, 精制回收从在裂化重整反应工序中生成的产物中分离出的单环芳香族烃的精制回收工序,将从在裂化重整反应工序中生成的产物中分离出的重质馏分氢化的氢化反应工序, 将氢化反应工序中得到的重质馏分的氢化反应物返回到裂化重整反应工序的工序。 在再循环步骤中,将重质馏分的氢化反应物在不同于原料油的引入位置的位置处引入裂化/重整反应器中,使得重质馏分的氢化反应物与 裂化重整反应器中的单环芳香族烃制造用催化剂比原料油与裂解改性反应器内的单环芳香族烃制造用催化剂接触的时间短。
    • 9. 发明公开
    • METHOD FOR PRODUCING SINGLE-RING AROMATIC HYDROCARBONS
    • VERFAHREN ZUR HERSTELLUNG AROMATISCHER EINZELRING-KOHLENWASSERSTOFFE
    • EP2690160A1
    • 2014-01-29
    • EP12764115.7
    • 2012-03-23
    • JX Nippon Oil & Energy CorporationChiyoda Corporation
    • YANAGAWA, ShinichiroIDA, RyojiIWASA, YasuyukiKOBAYASHI, MasahideYASUI, SusumuSUGI, YoshishigeFUKUI, AtsushiNAGUMO, Atsuro
    • C10G69/04C07B61/00C07C4/18C07C4/26C07C15/02C10G11/05C10G45/44
    • C07C5/10C07C4/06C10G11/05C10G35/095C10G61/02C10G69/04C10G2300/4081C10G2300/802C10G2400/30Y02P20/132
    • Provided is a method for producing monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms, the method including a cracking reforming reaction step of bringing feedstock oil into contact with a catalyst to effect a reaction, thereby obtaining a product containing monocyclic aromatic hydrocarbons; a purification/recovery step of purifying and recovering monocyclic aromatic hydrocarbons separated from the product produced in the cracking reforming reaction step; and (1) a hydrogenation step of hydrogenating a heavy fraction separated from the product produced in the cracking reforming reaction step; a dilution step of returning a portion of the hydrogenation product of the heavy fraction obtained in the hydrogenation step, as a diluent oil to the hydrogenation step; and a recycling step of returning the hydrogenation product of the heavy fraction obtained in the hydrogenation step to the cracking reforming reaction step; or (2) a dilution step of adding a diluent to the heavy fraction separated from the product produced in the cracking reforming reaction step; a hydrogenation step of hydrogenating the mixture; and a recycling step of returning the hydrogenation product of the mixture obtained in the hydrogenation step to the cracking reforming reaction step.
    • 提供一种具有6〜8个碳原子的单环芳烃的方法,该方法包括:使原料油与催化剂接触进行反应的裂化重整反应步骤,从而得到含有单环芳烃的产物; 从裂解重整反应步骤中产生的产物中分离出的单环芳烃的纯化和回收步骤; 和(1)氢化步骤,氢化从裂化重整反应步骤中产生的产物分离的重馏分; 稀释步骤,将氢化步骤中获得的重馏分氢化产物的一部分作为稀释油返回到氢化步骤; 以及使在氢化工序中得到的重质馏分的氢化物返回到裂化重整反应工序的再循环工序; 或(2)稀释步骤,将稀释剂加入到与裂解重整反应步骤中产生的产物分离的重馏分中; 使混合物氢化的氢化步骤; 以及将在氢化工序中得到的混合物的氢化物返回到裂化重整反应工序的再循环工序。