Chemical Cleaner Production Adds Supporting Technology

Sinochem News reporter learned from Sichuan Tianren Chemical Engineering Co.
, Ltd.
on March 18 that the key technological achievements in the utilization of typical industrial waste gas resources led by the company won the first prize of the 2021 China Nonferrous Metals Industry Science and Technology Award
.

The technology is jointly completed by Sichuan Tianren Energy Technology Co.

, Ltd.
, a subsidiary of Tianren Chemical, and Kunming University of Science and Technology, China University of Petroleum (East China), Hunan Anchun High-tech Co.

According to Yang Hao, chairman of Tianren Energy Company, the exhaust gas of typical carbon-containing industrial waste gas has complex components, and there are many components that can be recycled, but the components vary greatly, and the utilization of resources is difficult
.

Among them, the annual emission of the chemical industry reaches hundreds of billions of standard cubic meters, and most of them are burned in one go, except for coke oven gas, and the utilization rate of resources is low

In response to the above problems, the project pioneered the conjugate catalytic removal technology of sulfur, phosphorus, arsenic and cyanide before combustion of typical carbon-containing industrial waste gas, and developed a manganese-molybdenum modified catalyst for deoxidation, dephosphorization, arsenic removal, and desulfurization.
Synergistic removal of organic sulfur by hydrogenolysis and hydrolysis
.

In view of the problems of high-concentration carbon monoxide industrial waste gas conversion to hydrogen production, methanol synthesis, and ammonia synthesis reactions that are violent and difficult to control, low utilization rate of raw material gas, and easy deactivation of catalyst due to high local temperature, the project team developed a carbon monoxide radial bed isothermal transformation, short-term Process transformation, low-pressure isothermal methanol synthesis and other complete sets of technologies and equipment

In response to the problems of high cost and low resource utilization rate of single industrial waste gas resource utilization, the project team has also developed a variety of key technologies for the full-component conjugated resource utilization of industrial waste gas, and replaced the addition of additional industrial gas components through component adaptation.
Realize a variety of carbon-containing industrial waste gas conjugated resources
.

　　The achievement has been used in calcium carbide, carbon black, metallurgy and coking industries, basically realizing the utilization of chemical products in the exhaust gas such as blast furnace gas, submerged arc furnace gas, calcium carbide furnace, and yellow phosphorus tail gas.
More than 30 million tons of carbon dioxide has improved the level of clean production in the industry and achieved the reduction of flue gas sources in many industries
.

The technical equipment has been industrialized and promoted in more than 20 enterprises, with good technical reproducibility and significant economic, social and environmental benefits of the project