Title:
単環芳香族炭化水素の製造方法
Document Type and Number:
Japanese Patent JP5690624
Kind Code:
B2
Abstract:
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.
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Inventors:
柳川 真一朗
小林 正英
伊田 領二
安井 進
杉 宜重
福井 敦
南雲 篤郎
小林 正英
伊田 領二
安井 進
杉 宜重
福井 敦
南雲 篤郎
Application Number:
JP2011067692A
Publication Date:
March 25, 2015
Filing Date:
March 25, 2011
Export Citation:
Assignee:
ＪＸ日鉱日石エネルギー株式会社
千代田化工建設株式会社
千代田化工建設株式会社
International Classes:
C10G69/04; C10G11/05; C10G11/10; C10G11/18; C10G45/44
Attorney, Agent or Firm:
Masatake Shiga
Norio Takahashi
Sumio Tanai
Yuji Masui
Norio Takahashi
Sumio Tanai
Yuji Masui