Mitsubishi Chemical Corporation

Mitsubishi Chemical Industries Limited

Mitsubishi Kasei Corporation

Yoshio Yoshino

Yukio Yamaguchi

Yoshihiro Omae

Koji Tsuchihashi

Kenzo Tsujikawa

Kohei Okuyama

Kazushi Matsuura

Yoshitaka Takeda

Akihide Yoshida

Kimitoshi Ohishi

Atsushi Matsumoto

Takashi Takaoka

An activated carbon has a specific surface area of pores with a pore diameter of not less than 20 .ANG. in the pore distribution determined from the nitrogen adsorption isotherm of not less than 1,000 m.sup.2 /g, and the ratio of the specific surface area of the pores with a pore diameter of not less than 20 .ANG. to the specific surface area of the whole pores of not less than 0.45.

Activated carbon, process for the preparation thereof and electric

Active carbon having a pore size distribution obtained from a nitrogen adsorption isothermal line such that the volume of pores having a pore diameter of less than 15 .ANG. is at least 0.25 ml/g and constitutes at least 40% of the total volume of pores having a pore diameter of at most 300 .ANG., and the volume of pores having a pore diameter of from 100 to 300 .ANG. constitutes at least 10% of the total volume of pores having a pore diameter of at most 300 .ANG..

Active carbon and method for its production

A method fo controlling fuel for a coke oven by a programmed heating method in which the fuel supply rate is changed at least once during the coal carbonization process in the coke oven, wherein the improvement comprises conducting the substantial reduction of the fuel supply rate from a large flow rate at the initial stage of the carbonization to a small flow rate inclusive of a zero rate when the coal center temperature, i.e. the temperature at the center of the coal packed in the carbonization chamber, is within a range of from 350.degree. to 700.degree. C.

Method of controlling fuel for a coke oven

A method of regulating fuel for a coke oven by a programmed heating method in which a change of the fuel supply rate contains at least one substantial reduction during the coal carbonization process in the coke oven, wherein the improvement comprises setting up a standard curve for the ethylene concentration or the tar concentration based on the operating conditions of the coke oven and the conditions of feed coal, measuring the ethylene concentration or the tar concentration in the coke oven gas generated in the carbonization chamber, and controlling the fuel supply rate so as to minimize the difference between the measured value and the standard value.

Method of regulating fuel supply rate for heating a coke oven

Growing community of inventors

Kitakyushu, Japan

Yoshio Yoshino