VOCs involve many industries, different emissions, and greatly varying governance technologies. From the perspective of governance paths, adsorption is the most common one. Compared with traditional carbon adsorption, resin adsorption has become increasingly the focus of attention due to its excellent performance. What are the advantages of resin adsorption? What is the cost?
Chemical enterprise waste gas treatment resin adsorption condensation and recycling device
Puhua Technology currently promotes the technology to treat VOCs by resin adsorption, and the supporting methods include condensation method, etc. In the past two years, environmental protection requirements have become increasingly high. It is difficult to achieve emission standards by relying solely on resin adsorption. Equipment such as condensation and recovery, water separation, etc. are needed to be added to the front end of resin adsorption. What are the advantages of
resin adsorption? Why can we get so many applications?
resin adsorption operation conditions are relatively simple and the processing accuracy is relatively high. As long as the substances in the emissions can be adsorbed by the resin, they will definitely be able to meet the emission standards. Materials that cannot be adsorbed, such as methanol , ethanol, etc., can be treated by water separation at the front end. There are also some substances that cannot be processed on the front end, which can be placed on the back end for combustion treatment. Generally speaking, these methods need to be carried out in conjunction. The resin adsorption section mainly relies on the high selectivity and accuracy of the resin to achieve directional separation and standard emissions, and is the core of the entire VOCs treatment system device.
Chemical enterprise waste gas treatment resin adsorption condensation and recycling device
Some VOCs substances can be directly burned, but some cannot burn or may cause new pollution problems after combustion. For example, substances such as chlorine and nitrogen cannot be burned, and these substances will continue to exist after burning, but they only exist in another form. Therefore, resin adsorption is used in the VOCs control industry. These substances can be desorbed through resin adsorption, , and finally processed.
In the past, we did not have high requirements for environmental protection and used combustion technology more frequently. In the future, resin adsorption will definitely be an important direction because it does not destroy matter, it uses physical methods to treat VOCs without causing pollution, which is its biggest advantage. After processing, there is also a special separation device that automatically separates and recycles. If the separated substance is a single component, the customer can also recycle it, which is also the difference between it and other methods.
Chemical enterprise waste gas treatment resin adsorption condensation and recycling device
For emission enterprises, is the cost of resin adsorption equipment high?
Generally speaking, the supporting devices can be designed based on the VOCs air volume, VOCs content, and even the content of each component, as well as temperature, pressure, and pH value, and the overall cost is different. The greater the air volume and the higher the content, the greater the cost. The price of equipment ranges from hundreds of thousands to tens of millions, and the difference is quite large.
In terms of operating costs, it is mainly the consumption of water, electricity and gas. The consumption of electricity is to blow gas into the adsorption equipment. The consumption of water is the process of washing the adsorption materials, which is not high. "Gas" means the consumption of steam. For example, the largest equipment in our company now is a loading capacity of more than ten cubic meters, which is very low in the treatment cost per cubic cube of exhaust gas, which is almost negligible. An important advantage of adsorbent material is its renewability and its ability to recycle is that it is regenerated after adsorption. The regenerated adsorbent material can basically reach the removal level of new materials. During the recycling process of "run-regeneration-run", the main cost is the regeneration link, which is relatively low.
activated carbon adsorption and resin adsorption are very different. To adsorption of activated carbon, you only need to make a box and put the activated carbon in it, and no other factors need to be considered. Resin is an adsorption column with strict standards for internal and external structure and design. The difference between
is not just the difference in materials. Activated carbon devices are immature themselves. The manufacturer only sells equipment, a set of several thousand yuan, and no one wants to optimize the process. The resin adsorption equipment is relatively advanced. This will also bring about a cost gap.
If the adsorbent material is used in waste gas treatment, the liquidity, safety and other requirements are very high. In the past, activated carbon was used to adsorption, which was prone to combustion and explosion, and resin adsorption just solved this problem.
In terms of removal rate, the removal rate of activated carbon will drop from 99% to 95% in one month when used, and will drop below 50% in two months. Enterprises can only barely use it.
