Which desulfurization technology is the best?
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Currently, the three-dimensional desulfurization technologies used by Huaxi SHELL, in particular those based on organic amines or ionic liquids, can reduce sulfur content to levels below 50 mg. Those who are using these technologies, could you share your experiences regarding their effectiveness? What are the problems? Thank you! I’m offering a reward to solve the current environmental challenges!
I also need information on this topic; I would appreciate advice from experts
Hydrogenation of polyorganosulfur compounds, along with the use of zinc oxide to remove inorganic sulfur, can reduce its level to below 0.1 ppm
Hydrogenation conversion is costly, complex to operate, and the use of zinc oxide for hydrogen sulfide removal has specific sulfur capacity requirements; excessive sulfur levels cannot be absorbed, in addition to the high costs associated with regeneration and overall investment.
In October, the ion liquid desulfurization project designed by 3D for Yantai Wanhua started construction; I’m not sure how things are progressing now. Is there anyone who can provide some information?
As far as I know, the desulfurization systems installed in most factories are merely for show; they aren’t used after being installed, unless there are environmental inspections, in which case they are activated – otherwise they remain unused.
This is purely a matter of enforcement. We are already aware of this issue, and next year we will increase inspection efforts to strictly crack down on illegal and excessive discharges
This post was last edited by winter0304 on 2015-12-15 at 11:21. Under stable conditions, the amine solution method yields good absorption results, but system blockages are likely to occur, and it is difficult to clean the exchange plates during startup and shutdown. Absorption occurs at temperatures below 50°C, while decomposition and regeneration take place at temperatures above 100°C. This process requires significant amounts of cooling and heating energy, resulting in high energy consumption. The temperature of flue gas is usually between 200–300°C; to enable absorption, it is necessary to first cool the gas rapidly to below 50°C, and then raise its temperature to above 100°C for regeneration. When the volume of flue gas is large, the energy consumption naturally increases. Furthermore, the solution circulation rate finds it difficult to adapt to large fluctuations in gas volume, and it also has limited ability to cope with fluctuations in exhaust gas concentration and temperature. If the sulfur content in the raw materials increases, the processing capacity of the subsequent systems will not be sufficient. Regarding the issue of corrosion, it has always been a popular topic; here is a post for everyone’s reference: http://bbs.hcbbs.com/thread-966728-1-1.html. The above are merely personal opinions.