发明授权
US07335618B2 Method for manufacturing hydrorefining catalyst, and metal recovery method
有权
加氢精制催化剂的制造方法以及金属回收方法
- 专利标题: Method for manufacturing hydrorefining catalyst, and metal recovery method
- 专利标题(中): 加氢精制催化剂的制造方法以及金属回收方法
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申请号: US10310903申请日: 2002-12-06
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公开(公告)号: US07335618B2公开(公告)日: 2008-02-26
- 发明人: Hiroki Koyama , Toru Saito , Yoshiki Iwata , Chikanori Nakaoka
- 申请人: Hiroki Koyama , Toru Saito , Yoshiki Iwata , Chikanori Nakaoka
- 申请人地址: JP Tokyo
- 专利权人: Japan Energy Corporation
- 当前专利权人: Japan Energy Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JP2000-171427 20000608; JP2000-218139 20000719
- 主分类号: B01J21/00
- IPC分类号: B01J21/00 ; B01J29/00 ; C01G45/00 ; C01G39/00
摘要:
A heavy oil is hydrorefined using a hydrorefining catalyst. A spent hydrorefining catalyst whose activity has decreased is heat treated (S1) and pulverized to obtained a regenerated powder (S2). This regenerated powder is fractionated according to its metal content (S3), formed (S6), dried (S7), and calcined (S7) to manufacture a regenerated catalyst whose volume of pores with a diameter of 50 to 2000 nm is at least 0.2 ml/g, and whose volume of pores with a diameter over 2000 nm is no more than 0.1 mL/g. Using this regenerated catalyst, a heavy oil containing at least 45 wt ppm vanadium and nickel as combined metal elements is hydrodemetalized, and the vanadium and nickel are recovered from the used regenerated catalyst (SS1). Through hydrorefining, the metal components are recovered more efficiently, and the spent catalyst can be reused to manufacture a regenerated catalyst that exhibits high reaction, activity.