What is the coking process in a steel plant? What is the coking process in a steel plant? In steel processing, the coke, which is processed from coal, has a reduction chemical reaction with iron ore at high temperatures. This process includes the preparation of raw materials, coking, blast furnace charging, reduction reaction, melting and cleaning, collection of molten iron and slag, carbon in the coke gasification to produce carbon monoxide and other reducible gases, and iron ore in the oxide reaction, so that it is converted into metal iron. Say a whole process will produce carbon monoxide.

Carbon monoxide gas is a common flammable gas. In daily life, carbon combustion, coal combustion, natural gas, etc. will produce carbon monoxide. Although carbon monoxide is a common gas, it is not a beneficial gas to the human body. On the contrary, when the concentration is high, it may still It will damage the function of the human body, and even threaten life and health. There are also industrial requirements for carbon monoxide emissions. In October 2023, in order to continuously improve the ambient air quality and standardize the continuous monitoring of carbon monoxide from fixed pollution sources in the steel and coking industries, the Hebei Provincial Department of Ecology and Environment formulated the ''Technical Requirements for Continuous Monitoring of Carbon Monoxide from Fixed Pollution Sources in the Steel and Coking Industries of Hebei Province (Trial) ''. The full text of the document is as follows:

Now with the increasingly serious problem of global climate change, carbon emissions have become an important concern to deal with climate change. As one of the main sources of carbon monoxide emissions in the steel coking industry, it is of great significance to carry out carbon monoxide treatment and effectively control its emissions for the continuous improvement of atmospheric environmental quality. In this context, the Chinese government has formulated strict environmental protection standards, requiring steel and coking enterprises to install carbon monoxide online monitoring systems.

As one of the important pollution sources, it is very important to monitor the emission of pollutants in the steel and coking industry. The application of carbon monoxide online monitoring system can accurately monitor the concentration of carbon monoxide and other harmful gases produced in the production process of these industries in real time, and provide timely and effective environmental protection data support for enterprises and governments.

In the carbon monoxide online monitoring system, through a series of sophisticated sensors and data analysis tools, real-time monitoring of CO emissions in the production process of enterprises. This requires the carbon monoxide sensor to have long-term stability, repeatability, and detection accuracy are very high, and the exhaust gas of the steel plant may also contain hydrogen, nitrogen oxides, sulfur dioxide, etc. The composition of the flue gas itself is more complicated, so it is also Required that the sensor has a certain filtering capacity. The CO-AX of the carbon monoxide sensor that should be Alphasense by Shenzhen is very suitable for this application and can be used as the best choice for the project.

Measuring range: 2000ppm

Sensitivity: 55 ~ 90nA/ppm

Response time:<30s

Linear range:< /-40ppm

Overload: 4000ppm

Resolution: 0.5ppm

Size: Φ20.2*16.5

Service life: 2 years

Storage period: 6 months

Working temperature:-30~50 ℃

Working humidity: 15 ~ 90% RH

Load resistance: 10 ~ 47Ω

Typical application: suitable for high H2 concentration, steel industry and other occasions with high H2 content to measure CO concentration