Regarding the projects for desulfurization and denitration of catalytic flue gas, what are the technical specifications and the impact on existing installations?
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This post was last edited by 328104062 on 2016-2-24 at 11:36. 1. What are the technologies for desulfurization and denitrification? What are the design institutes and research institutes? 2. What are the active components of the catalyst in the denitration reactor? What is the operating temperature (300-350°C? ) What is the fixed-bed space velocity? What reactions occurred internally? 3. What is the internal structure of the desulfurization reactor? What is the concentration of the circulating alkaline solution? What is the alkali consumption (per unit amount)? What is the yield of waste alkali residue? What is the filtration status of the alkali slag, and how is it handled? 4. What are the target limits for the exhaust gas emissions? What are the target values for dust particle levels, NOX, and SOX concentrations? 5. What are the modifications required for existing waste heat boilers when new desulfurization and denitration projects are implemented? What are the effects of removing the economizer on the device’s energy consumption? What are the effects on the back pressure of the smoke extractor? By how much has the power consumption of the three units increased? 6. How is the long-term operation of the newly installed desulfurization and denitrification plants? Where are the bottlenecks in operation and long-term operation? @liujia1987 @liaifeng @cleaner @ErQuan @li*ch1968 Manager Discussion Group
1. What are the technologies for desulfurization and denitration? What are the design institutes and research institutes? 2. What are the active components of the catalyst in the denitration reactor? What is the operating temperature (300-350°C? ) What is the fixed-bed space velocity? What reactions occurred internally? 3. What is the internal structure of the desulfurization reactor? What is the concentration of the circulating alkaline solution? What is the alkali consumption (per unit amount)? What is the yield of waste alkali residue? What is the filtration status of the alkali slag, and how is it handled? 4. What are the target limits for the exhaust gas emissions? What are the target values for dust particle levels, NOX, and SOX concentrations? 5. What are the modifications required for existing waste heat boilers when new desulfurization and denitration projects are implemented? What are the effects of removing the economizer on the device’s energy consumption? What are the effects on the back pressure of the smoke extractor? By how much has the power consumption of the three units increased? 6. How is the long-term operation of the newly installed desulfurization and denitrification plants? Where are the bottlenecks in operation and long-term operation?
On the forum, there is Engineer Gong Wangxin’s section titled “Q&A on Desulfurization and Denitration Technologies,” which provides detailed explanations that are more than sufficient to address your questions!
1. Current desulfurization technologies include the ammonia method and the alkaline method, while for denitrification, there are SNCR and SCR technologies. Among the design firms, Sinopec Ningbo Engineering Co., Ltd. (Sinopec’s Desulfurization and Denitrification Center) is notable; the most advanced technology at present is the dry desulfurization technology developed by the China Academy of Petroleum Sciences. 2. Is V2O5 the active component in the catalysts used in denitrification reactors? The optimal operating temperature is 350°C. 4. The parameters of the exhaust gas at the outlet are to be controlled in accordance with the emission standards for pollutants in the petrochemical industry
In non-electric industries, dry methods are used for high-temperature and low-sulfur conditions, with temperatures of at least 200°C, along with low-temperature SCR denitration systems