Can the boilers in chemical enterprises handle chemical emission gases? Do the regulations permit this? Please give some advice

It should be allowed; the by-produced dry gas is often used as fuel in the equipment. Discharge the exhaust gases into a buffer tank to ensure stable gas supply, and pay attention to matching the operating conditions with the parameters of the boiler burner.

\"Can coal-fired boilers accept chemical industry exhaust gases?\" It’s unclear whether the exhaust gases are to be used as fuel or for ventilation, or whether only the boiler’s exhaust gas treatment system is utilized. As fuel, it needs to be fed into a burner (mixed combustion is rare). There are many precedents for the use of coal-derived coke oven gas, blast furnace gas from steelmaking, and converter gas (which has a relatively low calorific value) in gas boilers; coke oven gas is used most frequently, and many pulverized coal boilers have been converted to gas boilers. As blower air for coal-fired boilers, its technical feasibility is low (the heat source can only be utilized indirectly). The use of exhaust treatment systems for such applications is relatively rare (I have never seen it). There are **standards** for boiler exhaust emissions; if the emissions meet these standards, the environmental protection authorities will not cause any problems.

Reply 1# *AO*AOREN: I’m not sure if you’re referring to using the heat from boilers to treat some organic waste gases If that’s the case, there should be no major problems, but it’s important to check whether the exhaust gases contain any gases that can corrode the heat exchange tubes in the boiler, such as those that produce HCl, HF, SO2, or other corrosive substances through thermal decomposition. If not, it will further increase the heat output of the boiler; if there is a small amount, it is also acceptable as long as it does not exceed the processing capacity of the boiler’s exhaust gas treatment system ； If the quantity is large, further consideration is needed.

What are the safety design requirements for recovering gases containing certain components from chemical processes?

First, consider whether the exhaust gas can burn fully, that is, whether the emissions from the chimney meet the standards； Secondly, whether it causes damage to the boiler, such as corrosion, wear, and so on ； Furthermore, it is also crucial to ensure that combustion can take place safely, preventing the entry of ** hazardous gases into the boiler at ** extreme levels. This is a very complex project; it’s not enough for something to be theoretically feasible. It involves all aspects of the boiler and the 3T principles for combustion; careful calculation and verification are required before implementation.

It can be fully recycled, but only for supplementary combustion; a water seal system and a pressure control system should be considered