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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.:

US 10076773 B1

PDFFull Text
Date of Patent:
Sep. 18, 2018

Filed:

Aug. 12, 2011

Method for washing reactor

Applicants:

Shinya Takahashi, Tokyo, JP;

Kazuhiko Tasaka, Tokyo, JP;

Yuichi Tanaka, Tokyo, JP;

Marie Iwama, Tokyo, JP;

Inventors:

Shinya Takahashi, Tokyo, JP;

Kazuhiko Tasaka, Tokyo, JP;

Yuichi Tanaka, Tokyo, JP;

Marie Iwama, Tokyo, JP;

Assignees:

JAPAN OIL, GAS AND METALS NATIONAL CORPORATION, Tokyo, JP;

INPEX CORPORATION, Tokyo, JP;

JX NIPPON OIL & ENERGY CORPORATION, Tokyo, JP;

JAPAN PETROLEUM EXPLORATION CO., LTD., Tokyo, JP;

COSMO OIL CO., LTD., Tokyo, JP;

NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD., Tokyo, JP;

Attorney:

Greenblum & Bernstein, P.L.C.

Primary Examiner:

Douglas Lee

Int. Cl.
CPC ...
B08B 3/08 (2006.01); B08B 3/10 (2006.01); B08B 9/08 (2006.01); B08B 3/04 (2006.01); C10G 1/06 (2006.01); C10G 47/22 (2006.01); C10G 47/00 (2006.01); C10G 21/12 (2006.01); C10G 47/36 (2006.01); C10G 2/00 (2006.01); B01J 38/52 (2006.01); B01J 38/56 (2006.01);
U.S. Cl.
CPC ...
B08B 3/04 (2013.01); B01J 38/52 (2013.01); B01J 38/56 (2013.01); B08B 9/08 (2013.01); C10G 1/06 (2013.01); C10G 2/32 (2013.01); C10G 21/12 (2013.01); C10G 47/00 (2013.01); C10G 47/22 (2013.01); C10G 47/36 (2013.01); C10G 2300/1014 (2013.01); C10G 2300/1022 (2013.01); C10G 2300/4031 (2013.01); C10G 2300/44 (2013.01); Y02P 30/20 (2015.11);
Abstract

The method for cleaning a reactor of the present invention comprises passing a solvent through a wax-fraction hydrocracking apparatus which is charged with a catalyst and to which supply of a wax fraction is stopped, wherein the solvent comprising at least one oil selected from a group consisting of hydrocarbon and vegetable oils, and having a sulfur content of less than 5 ppm and being in a liquid state at 15° C.

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