Mitsubishi Gas Chemical Company, Inc.

Mitsubishi Jukogyo Kabushiki Kaisha

Mitsubishi Gas Chem. Company, Inc.

Yoshihiko Saito

Osamu Hashimoto

Takashi Kojima

Hiroshi Makihara

Ritsuo Hashimoto

Katsutoshi Murayama

Kinya Tsuji

Masaaki Kuwa

Kensuke Niwa

Younosuke Hoshi

Hisayoshi Fujita

A process for producing methanol or mixed alcohol which comprises reacting a synthesis gas containing hydrogen and carbon monoxide and/or carbon dioxide in a fluidized catalyst bed.

Process for producing methanol or mixed alcohol

A process for purifying methanol which comprises introducing crude synthetic methanol obtained by catalytic reaction of carbon oxide and hydrogen into a rectifying column either as such or after it is first introduced into a topping column and distilled with or without the addition of water to remove low-boiling components from the top of the topping column, and distilling it in the rectifying column to withdraw purified methanol from the top of the column and mainly water from the bottom of the column; wherein an auxiliary distillation column is provided side by side with the rectifying column, and the rectifying column and the auxiliary distillation column are operated under particular conditions.

Process for purifying methanol

A wetted wall type method of humidifying gas with a liquid which is composed, or mainly composed, of water wherein the liquid flows down a heated vertical wall to form a wetted wall and gas flows along the wetted wall in contact with the liquid on the wetted wall to increase the humidity contained in the gas, comprises supplying a greater amount of liquid than the amount of liquid used or evaporated for increasing the humidity, and recirculating the liquid which is not evaporated from an outlet of the wetted wall to a liquid supply portion, the amount of the flowing liquid being adapted to satisfy the following equation:

Method of humidifying a gas

Growing community of inventors

Niigata, Japan

Yoshihiko Saito