发明授权
- 专利标题: Method for hydrogenation of coal tar pitch
- 专利标题(中): 煤焦油沥青加氢方法
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申请号: US4168申请日: 1987-01-15
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公开(公告)号: US4909923A公开(公告)日: 1990-03-20
- 发明人: Hiroshi Okazaki , Tadashi Komoto , Munekazu Nakamura , Osamu Togari , Noriyuki Yoneda , Haruhiko Yoshida , Hideki Hashimoto
- 申请人: Hiroshi Okazaki , Tadashi Komoto , Munekazu Nakamura , Osamu Togari , Noriyuki Yoneda , Haruhiko Yoshida , Hideki Hashimoto
- 申请人地址: JPX Tokyo JPX Yokohama
- 专利权人: Nippon Steel Chemical Co., Ltd.,Chiyoda Chemical Engineering & Construction Co., Ltd.
- 当前专利权人: Nippon Steel Chemical Co., Ltd.,Chiyoda Chemical Engineering & Construction Co., Ltd.
- 当前专利权人地址: JPX Tokyo JPX Yokohama
- 优先权: JPX59-127625 19840622; JPX59-127626 19840622; JPX59-171369 19840817; JPX59-171370 19840817; JPX59-226368 19841030
- 主分类号: B01J35/10
- IPC分类号: B01J35/10 ; C10C1/20 ; C10G1/08 ; C10C3/02
摘要:
A method for the hydrogenation of coal tar pitch which comprises subjecting said coal tar pitch containing toluene insolubles to slight hydrogenation in the presence of a hydrogenation catalyst having carried on a refractory inorganic oxide carrier at least one member selected from the class consisting of elemental metals, belonging to Groups VI B and VIII in the Periodic Table and oxides and sulfides thereof, under the conditions of 280.degree. to 400.degree. C. of reaction temperature, 20 to 200 kg/cm.sup.2. G of hydrogen pressure, 0.1 to 10 hr.sup.-1 of LHSV, and 500 to 2,000 Nl/liter of hydrogen to liquid ratio, and a catalyst therefor. The "slight" hydrogenation is hydrogenation to a degree such that the difference of hydrogen to carbon atomic ratio between the untreated coal tar pitch and the hydrogenated coal tar pitch falls in the range of 0.03 to 0.5. The coal tar pitch can be coal tar pitch itself, coal tar pitch pretreated for the removal of organic sodium compounds, or pretreated for the removal of quinoline insolubles and, preferably, the coal tar pitch has a density in the range of 1.13 to 1.17 g/cm.sup.2 at 40 degrees C.
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