The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 22, 1985
Filed:
Sep. 10, 1982
Hiroyuki Ihara, Kanagawa, JP;
Kazuo Takahashi, Kanagawa, JP;
Michiro Matsubara, Kanagawa, JP;
Fumio Kumata, Kanagawa, JP;
Yoshitomo Sanami, Kanagawa, JP;
Mitsubishi Oil Company, Limited, Tokyo, JP;
Abstract
A continuous process for the production of a solvent for use in the liquefaction of coal is described. The process comprises hydrogenating a mixture of 100 parts by weight of a hydrocarbon mixture and from 0.2 to 10 parts by weight of phenol and/or alkylphenol. The hydrocarbon mixture contains at least 50% by weight of a polycyclic (from tricyclic to pentacyclic) aromatic hydrocarbon or its alkyl derivative. The hydrocarbon mixture is distilled away in a proportion of at least 80% when heated at a temperature of from 320.degree. to 550.degree. C. The hydrogenation of the hydrocarbon mixture and phenol and/or alkylphenol may be carried out with or without the addition of from 0.05 to 0.5% by weight (calculated as sulfur) of an easily desulfurizable sulfur compound in a high temperature and pressure hydrogen atmosphere in the presence of a catalyst containing the sulfide(s) of Group VIII metal and/or Group VI metal of the Periodic Table to prepare a partially hydrogenated product resulting from the partial hydrogenation of the aromatic ring of the polycyclic aromatic hydrocarbon or its alkyl derivative.