Sumitomo Metal Mining Company, Ltd.

Akzo N.v.

Nippon Ketjen Co., Ltd.

Yoshimasa Inoue

Katsuhisa Fujita

Toshio Yamaguchi

Tetsuro Kamo

Masafumi Shimowake

Yukuaki Mitarai

Yasuhito Takahashi

Shigeru Sakai

Naoyuki Torihara

Syuhei Manabe

Kenichi Kawamoto

Yoshimitsu Miyauchi

A catalyst composition suitable for effecting simultaneous hydrodesulphurisation and hydrodemetallisation of sulphur and metals containing feedstocks which shows a high hydrodesulphurisation activity, a high hydrodemetallisation activity, and a long life is disclosed. The catalyst includes: a) a support, at least 90 wt. % of which includes alumina, which alumina has an R value of from 0.08 to 0.30, the R value being defined as the ratio between the integrated intensity of the X-ray diffraction peak at 2 .theta.=32.degree. and the integrated intensity of the X-ray diffraction peak at 2 .theta.=46.degree., b) from 2 to 8 wt. % of a Group VIB metal component, calculated as metal, c) from 0.5 to 2.5 wt. % of a Group VIII metal component, calculated as metal; and d) a pore size distribution as determined by nitrogen adsorption satisfying the following requirements: (i) a pore volume of from 0.5 to 1.0 ml/g, (ii) an average pore diameter of from 18 to 30 nm, and (iii) of the pore volume of pores with a diameter below 60 nm at least 40% is present in pores within a range of the average pore diameter .+-.5 nm. A process for use of this catalyst and for its preparation is also disclosed.

Hydroprocessing catalyst and use thereof

A process for hydrotreating a hydrocarbon oil contaminated with suspended solid particles and dissolved metallic compounds, comprising the contacting of the oil at an elevated temperature in the presence of hydrogen with porous inorganic oxide particles having a surface area of 1 m.sup.2 /g or less and a pore volume of at least 0.1 ml/g in pores having a diameter of at least 10 microns.

Hydrotreatment process

A new catalyst, which is Ni-Mo metal loaded on zeolite-alumina carrier, provides efficient hydrotreatment of solvent for coal liquefaction and cracking of high boiling fractions, especially high boiling n-paraffins, whereby undesired accumulation of n-paraffins can be prevented and liquefaction operations can be stably performed over long periods of time.

Catalyst for hydrotreating solvent for coal liquefaction

Supported catalysts for hydrotreating hydrocarbons comprise (a) at least one member selected from the group consisting of oxides of metals in Groups IV and VIII of the Periodic Table, and (b) at least one organic compound having a mercapto radical or radicals (--SH) selected from the group consisting of mercapto-carboxylic acids, including alkali metal, alkaline earth metal and ammonium salts thereof and esters thereof, bivalent mercaptans, amino-substituted mercaptans, and thiocarboxylic acids. These catalysts can be easily activated by treatment in the presence of hydrogen gas at a temperature in the range from room temperature to 400.degree. C. show higher activity than catalysts activated by conventional methods.

Catalysts for hydrotreating hydrocarbons and method of activating the

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Matsudo, Japan

Yoshimasa Inoue