Issues related to dust removal in the WGS process (flue gas desulfurization)

We need to do this too; looking forward to sharing it

Can it reach such a low level? The dust removal efficiency is generally determined during the design phase, and it is difficult to adjust it during operation

WGS is expected to be able to achieve the target value mentioned by the poster; wet dust removal generally works well, while electrostatic dust removal is more difficult according to my understanding; it’s not ruled out that new technologies have been introduced abroad

Are your smoke particle analyzers accurate? The ones we have here aren’t very accurate; the maintenance staff told us that high levels of moisture in the chimney are to blame, as this prevents the viewports from being clear. I’m not sure if that’s the reason

It is very likely this is the reason why it is difficult to measure the pollutant content in smoke in a steam environment.

This should also be related to the dose of reagent used in the regenerator; however, with wet flue gas desulfurization, it is generally possible to reduce this amount significantly.

Wet flue gas desulfurization should be similar. The slag discharge volume has increased

I heard that the WGS technology has been acquired by CNPC, and other oil companies can’t use it, right? ? ? When we carried out desulfurization, we didn’t even organize any communication!

It is generally difficult to conduct tests in a steam environment, and the analysis results are not very accurate. It is said that there are imported analyzers available abroad that can be used for testing in such environments

This post was last edited by luoli519 on 2016-4-29 at 12:39. The use of kinetic separation for WGS desulfurization in the petrochemical refining industry is a rare option. Moreover, during the unpacking design phase of the process package, the WGS desulfurization method was determined in accordance with the requirements of the process package. In WGS desulfurization, since it is a kinetic separation technology, the efficiency of the separation equipment depends on whether a system platform based on precise kinetic calculations is utilized for accurate design. If the design firm relies on experience to copy the reference diagrams of separation units from similar-scale projects included in previous process packages, making only changes to the project name and owner’s name before submitting them to the owner, the performance of those separation units in actual operation is often unsatisfactory. For units with the same capacity, variations in the quality of raw materials, as well as differences in fluid composition, flow rate, operating temperature, operating pressure, and fluid contraction due to various operational conditions, inevitably lead to changes in the flow pattern of the fluid ； Therefore, it is necessary to carry out precise calculations and adjustments for each parameter involved in dynamic separation on a precision calculation and design system platform, and then provide the owner with a tailored technical solution for the separation device. Based on our many years of experience in the design, manufacture, and operation of high-efficiency kinetic separators both domestically and internationally, not even among similar projects is there a kinetic separator with exactly identical internal and external structural parameters. However, looking at many domestic design firms, for the sake of simplicity, there are quite a number of cases where, for projects with similar production capacities, the equipment drawings are altered only by changing the project name and the owner’s name. Moreover, the owners don’t have much knowledge of the relevant technologies, so they are unable to identify problems with the design team during the design phase; only when the system is actually in operation do they realize there are so many issues! As marine industry professionals may have learned at industry conferences, several large state-owned refinery companies have reported that their projects utilize process packages from a foreign company, while the detailed design of the separation units is carried out by the in-house design institutes of these companies. However, the separation device is not working well at present; acid rain or alkaline rain often falls in the area around the chimney, turning the surrounding land white as if it were saline-alkali soil, thereby severely polluting the factory and the surrounding environment. The owner also requested the design firm and the manufacturers of the separation equipment to make corrections, but after several years of repeated attempts, no effective solution to the problem was found. In fact, the designers know best whether they or their subcontractors possess a patented, proprietary dynamics-based precise design system platform Such dynamic separation equipment often needs to be meticulously and precisely designed by specialized separation technology companies that possess proprietary systems for accurate dynamic calculation and design – it is not merely a matter of changing the project names and owner names on the drawings. Some design firms have only a superficial understanding of dynamic separation technologies; they turn a blind eye to whether subcontractors possess proprietary systems for accurate dynamic calculation and design, nor do they require such subcontractors to provide documentation on these proprietary systems for review. Instead, their focus is often on the cost of the EPC project. This is the real reason the problem arises. Regarding various types of dynamic separation devices, you can visit the HaiChuan Chemical Industry Forum at the direct link http://bbs.hcbbs.com/thread-1354813-1-1.html to learn more. This will enable you to pose professional questions to designers and equipment suppliers and seek expert solutions. It is also possible to seek help from specialized companies in dynamic separation technology.