Carbon monoxide treatment

First, let’s learn about carbon monoxide. Carbon monoxide (CO) is a colorless, odorless, and toxic gas with relatively stable chemical properties. It can bind with hemoglobin, reduce oxygen transport capacity, and in severe cases, can cause suffocation and death, as well as carbon monoxide poisoning, also known as gas poisoning.

Carbon monoxide can also participate in the generation reaction of photochemical smog, causing serious harm to the ecological environment. At present, carbon monoxide ranks first in the ranking of atmospheric pollutant emissions, so the treatment of carbon monoxide is urgent.

At present, many countries attach great importance to the treatment of carbon monoxide and have formulated strict emission control standards for it. In recent years, with the steady promotion of the national “dual carbon” strategy, the standards for industrial waste gas emissions have become increasingly strict. The demand for flue gas treatment in non power industries such as coking, cement, glass, industrial silicon, and waste incineration has increased significantly. China has also gradually strengthened the control of carbon monoxide treatment emissions.

Shanlan Environment Group Co., Ltd. adopts a scientific and reasonable carbon monoxide exhaust gas treatment process to ensure the safety, compliance, and long-term stable operation of equipment, striving to achieve the country’s dual carbon goals as scheduled.

Comparative analysis table for carbon monoxide treatment (stand-alone) processes

Carbon monoxide treatment technology:

With dry or semi-dry FGD, the CO oxidiser is placed after the heating furnace and before the SCR reactor.

Advantage:

1.Higher temperatures in the reaction zone of CO catalysts, high catalyst efficiency;

2.The heat released from CO oxidation can be used to raise the flue gas temperature, which is beneficial to the SCR denitrification reaction;

3.Reduces the amount of gas used in the heating furnace and reduces energy costs.

Downside:

1.Need to build a separate CO reactor, large investment cost;

2.The complexity of the components in the flue gas of the heating furnace makes it easy to cause catalyst poisoning.

Dry or semi-dry desulphurisation is used, with the CO catalyst placed in the lower layer of the SCR denitrification reactor.

Advantage:

1.Reduced footprint and construction investment by utilising the back-up layer of the SCR denitrification reaction for CO catalyst loading;

2.Higher temperatures in the reaction zone of CO catalysts, high catalyst efficiency;

3.Relatively easy loading of CO catalysts.

Downside:

1.The CO catalyst is located in the lower layer of the denitrification reactor and the heat generated by CO oxidation is less utilised;

2.When the desulphurisation efficiency is low, the high value of ammonia escape from SCR denitrification easily generates solid salts attached to the surface of CO catalysts.

Dry or semi-dry desulphurisation with CO oxidation unit placed after the SCR reactor.

Advantage:

1.High gas cleanliness in the CO catalyst reaction zone, high catalyst efficiency;

2.CO catalyst temperature has been reduced, making it suitable for use with low-temperature catalysts;

3.No additional energy consumption, reducing energy costs.

Downside:

1.Need to build a separate CO reactor, large investment cost.

Wet desulphurisation is used and the CO catalyst is placed in the lower layer of the SCR denitrification reactor.

Advantage:

1.High gas cleanliness in the CO catalyst reaction zone, high catalyst efficiency and long service life;

2.Suitable for wet desulphurisation project modification.

Downside:

1.Need to build a separate CO reactor, large investment cost;

2.Secondary heating needs to consume more energy, high operating costs.

Industries involved in carbon monoxide control in Shanlan Environment:

Our company’s carbon monoxide treatment technology provides corresponding solutions for the carbon monoxide gas emitted by enterprises in the production process, and can provide targeted treatment measures for different industries.

Shandong Shanlan Environmental Group Co., Ltd.’s carbon monoxide treatment includes industries such as petroleum, chemical, pharmaceutical, spraying, food, electronics, machinery, metallurgy, textile, papermaking, printing and dyeing, power, ceramics, forging, coal, and building materials.

Case Presentation: