VOC treatment
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Currently, environmental protection is receiving increasing attention, and the treatment of VOCs is a particularly prominent issue. In my opinion, the best method for dealing with VOCs is incineration; let’s exchange ideas on the specific methods used for this purpose.
At present, incineration is the predominant method, mainly because the calorific value is too low and the content is small
There are several issues with burning: 1. The dangers of open flames, required safety distances, and radiant heat. 2. Some materials produce toxic gases, such as dioxins. 3. The pressure in some storage tanks is too low to allow direct delivery； 4. Only investment, with no economic benefits.
The commonly used methods at present generally include absorption, adsorption, cooling, and incineration (including catalytic oxidation, etc.). In my opinion, for different media and processes, incineration is not necessarily the best option. Incineration also presents issues such as safety, secondary pollution from incineration gases, and being a purely consumptive treatment method ； For different situations, it is still necessary to adopt different methods or a combination of multiple methods to deal with them. Even methods such as reducing or utilizing waste gas by changing the manufacturing process are options that can be considered
The membrane-based VOCs recovery and treatment process can not only recover high-concentration VOCs but also ensure that emissions remain within specified limits
There are two main issues with burning: one is the risk of fire and explosion. No matter how well the process safety measures are designed in theory, this risk cannot be avoided; it depends on whether the owner or designer has the capacity to bear it. Another issue is the safety distance. At present, most oil and gas recovery projects involve the renovation of old industrial sites, and for most enterprises, it is basically impossible to find a site that meets the required safety distances. This is an inevitable flaw; no one can avoid it.