在“雙碳”目標驅動下，脫硫技術作為工業環保的核心環節備受關注。然而，看似成熟的脫硫工藝背后，仍存在諸多技術瓶頸亟待突破。本文從一線實踐出發，梳理當前脫硫領域的五大核心難點，揭開環保衛士們的“硬骨頭”。

　　Driven by the "dual carbon" goal, desulfurization technology has attracted much attention as a core component of industrial environmental protection. However, behind the seemingly mature desulfurization process, there are still many technical bottlenecks that urgently need to be overcome. This article starts from frontline practice, sorts out the five core difficulties in the current desulfurization field, and reveals the "hard bones" of environmental defenders.

　　01設備腐蝕：隱形“殺手”縮短系統壽命脫硫系統長期接觸酸性氣體和化學藥劑，管道、反應塔等關鍵設備易發生腐蝕漏液。尤其濕法脫硫中，pH值控制不當（如低于8.2時）會加速金屬腐蝕，導致點蝕穿孔?17。部分案例顯示，脫硫液中的硫酸鈉副鹽含量超標（超76g/L）時，結晶沉積進一步加劇腐蝕，維修成本可占年運營費用的15%以上。

　　01 Equipment Corrosion: Invisible "Killer" Shortens System Lifespan. The desulfurization system is exposed to acidic gases and chemical agents for a long time, and key equipment such as pipelines and reaction towers are prone to corrosion and leakage. Especially in wet desulfurization, improper pH control (such as below 8.2) can accelerate metal corrosion, leading to pitting and perforation. Some cases have shown that when the content of sodium sulfate by-product in desulfurization solution exceeds the standard (over 76g/L), crystal deposition further exacerbates corrosion, and maintenance costs can account for more than 15% of annual operating expenses.

　　02廢水處理：高鹽重金屬成“燙手山芋”濕法脫硫雖效率高，但產生的廢水pH值低（4-6）、含石膏顆粒及鉛/汞等重金屬，處理難度極大?6。傳統中和沉淀法難以徹底去除溶解性污染物，而蒸發結晶工藝能耗又居高不下。更棘手的是，廢水處理成本占脫硫總成本的20%-30%，成為企業環保合規的“攔路虎”?。

　　02 Wastewater treatment: Wet desulfurization with high salt and heavy metals to produce "hot potato" has high efficiency, but the resulting wastewater has a low pH value (4-6), contains gypsum particles and heavy metals such as lead/mercury, and is extremely difficult to treat. The traditional neutralization precipitation method is difficult to completely remove soluble pollutants, and the energy consumption of the evaporation crystallization process is also high. What's even more tricky is that the cost of wastewater treatment accounts for 20% -30% of the total cost of desulfurization, becoming a "roadblock" to corporate environmental compliance.

　　03副產物困局：資源化利用遇技術瓶頸脫硫過程中產生的硫酸鈣（石膏）、硫氰化鈉等副產物，若無法有效利用將造成二次污染。例如，濕法脫硫石膏純度不足時難以建材化，堆存占地問題突出；而干法脫硫的硫酸鈉副鹽積累會反向腐蝕設備，形成惡性循環?57。據測算，僅副產物處置費用即可增加噸處理成本0.3-0.5元?。

　　03 byproduct dilemma: Resource utilization encounters technological bottlenecks. The by-products generated during the desulfurization process, such as calcium sulfate (gypsum) and sodium thiocyanate, if not effectively utilized, will cause secondary pollution. For example, when the purity of wet desulfurization gypsum is insufficient, it is difficult to convert it into building materials, and the problem of storage and land occupation is prominent; The accumulation of sodium sulfate by-product in dry desulfurization will reverse corrode the equipment, forming a vicious cycle. According to calculations, the cost of by-product disposal alone can increase the processing cost by 0.3-0.5 yuan per ton.

　　04技術路線選擇：效率與成本的博弈?濕法脫硫?：石灰石-石膏法效率超95%，但系統復雜、耗水量大，且易產生“石膏雨”污染；?干法脫硫?：循環流化床工藝節水明顯，但脫硫效率波動大（85-95%），鈣硫比過高時經濟性下降；?生物脫硫?：運行成本低至0.04元/m?，但對氣體成分敏感，規模化應用仍待突破；

　　04 Technical route selection: The game between efficiency and cost Wet desulfurization: Limestone gypsum method has an efficiency of over 95%, but the system is complex, consumes a large amount of water, and is prone to "gypsum rain" pollution; Dry desulfurization: The circulating fluidized bed process saves water significantly, but the desulfurization efficiency fluctuates greatly (85-95%), and the economy decreases when the calcium sulfur ratio is too high; Biological desulfurization: The operating cost is as low as 0.04 yuan/m ?, but it is sensitive to gas composition, and its large-scale application still needs breakthroughs;

　　05運行優化難題：多變量協同控制如走鋼絲脫硫系統需精準調控吸收劑濃度、液氣比、溫度等十余項參數。以某電廠為例，煙氣SO?濃度波動±10%時，若未及時調整鈣硫比，脫硫效率可能驟降8%，同時副鹽生成量增加30%。此外，煤氣中CO?含量過高會消耗碳酸鈉吸收劑，導致脫硫效率與藥劑成本“雙失控”?。

　　05 Operation optimization challenge: Multi variable collaborative control such as steel wire desulfurization system requires precise regulation of more than ten parameters including absorbent concentration, liquid gas ratio, temperature, etc. Taking a power plant as an example, when the concentration of SO ? in flue gas fluctuates by ± 10%, if the calcium sulfur ratio is not adjusted in time, the desulfurization efficiency may drop sharply by 8%, and the amount of by-product salt production may increase by 30%. In addition, excessive CO ? content in coal gas can consume sodium carbonate absorbent, leading to a "dual out of control" of desulfurization efficiency and chemical cost.

　　破局之道:技術創新正在路上面對這些挑戰，行業正探索新路徑：納米改性吸收劑提升反應效率、膜分離技術強化廢水回收、AI算法實現參數智能調控……正如某環保工程師所言：“每個難點背后，都是技術迭代的契機。”唯有持續攻堅，方能讓藍天保衛戰從“達標”走向“高效”。

　　The way to break through: Technological innovation is on the way to face these challenges, and the industry is exploring new paths: nano modified absorbents to improve reaction efficiency, membrane separation technology to enhance wastewater recovery, AI algorithms to achieve intelligent parameter control... As a certain environmental engineer said, "Behind every difficult point is an opportunity for technological iteration." Only by continuously tackling challenges can the blue sky defense battle move from "standard" to "efficiency".

　　本文由  生物脫硫 友情奉獻.更多有關的知識請點擊  http://www.zdgbzlw.com/   真誠的態度.為您提供為全面的服務.更多有關的知識我們將會陸續向大家奉獻.敬請期待.在“雙碳”目標驅動下，脫硫技術作為工業環保的核心環節備受關注。然而，看似成熟的脫硫工藝背后，仍存在諸多技術瓶頸亟待突破。本文從一線實踐出發，梳理當前脫硫領域的五大核心難點，揭開環保衛士們的“硬骨頭”。

　　This article is contributed by the friendship of biological desulfurization For more related knowledge, please click http://www.zdgbzlw.com/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon. Driven by the "dual carbon" goal, desulfurization technology has attracted much attention as a core component of industrial environmental protection. However, behind the seemingly mature desulfurization process, there are still many technical bottlenecks that urgently need to be overcome. This article starts from frontline practice, sorts out the five core difficulties in the current desulfurization field, and reveals the "hard bones" of environmental defenders.

　　01設備腐蝕：隱形“殺手”縮短系統壽命脫硫系統長期接觸酸性氣體和化學藥劑，管道、反應塔等關鍵設備易發生腐蝕漏液。尤其濕法脫硫中，pH值控制不當（如低于8.2時）會加速金屬腐蝕，導致點蝕穿孔?17。部分案例顯示，脫硫液中的硫酸鈉副鹽含量超標（超76g/L）時，結晶沉積進一步加劇腐蝕，維修成本可占年運營費用的15%以上。

　　01 Equipment Corrosion: Invisible "Killer" Shortens System Lifespan. The desulfurization system is exposed to acidic gases and chemical agents for a long time, and key equipment such as pipelines and reaction towers are prone to corrosion and leakage. Especially in wet desulfurization, improper pH control (such as below 8.2) can accelerate metal corrosion, leading to pitting and perforation. Some cases have shown that when the content of sodium sulfate by-product in desulfurization solution exceeds the standard (over 76g/L), crystal deposition further exacerbates corrosion, and maintenance costs can account for more than 15% of annual operating expenses.

　　02廢水處理：高鹽重金屬成“燙手山芋”濕法脫硫雖效率高，但產生的廢水pH值低（4-6）、含石膏顆粒及鉛/汞等重金屬，處理難度極大?6。傳統中和沉淀法難以徹底去除溶解性污染物，而蒸發結晶工藝能耗又居高不下。更棘手的是，廢水處理成本占脫硫總成本的20%-30%，成為企業環保合規的“攔路虎”?。

　　02 Wastewater treatment: Wet desulfurization with high salt and heavy metals to produce "hot potato" has high efficiency, but the resulting wastewater has a low pH value (4-6), contains gypsum particles and heavy metals such as lead/mercury, and is extremely difficult to treat. The traditional neutralization precipitation method is difficult to completely remove soluble pollutants, and the energy consumption of the evaporation crystallization process is also high. What's even more tricky is that the cost of wastewater treatment accounts for 20% -30% of the total cost of desulfurization, becoming a "roadblock" to corporate environmental compliance.

　　03副產物困局：資源化利用遇技術瓶頸脫硫過程中產生的硫酸鈣（石膏）、硫氰化鈉等副產物，若無法有效利用將造成二次污染。例如，濕法脫硫石膏純度不足時難以建材化，堆存占地問題突出；而干法脫硫的硫酸鈉副鹽積累會反向腐蝕設備，形成惡性循環?57。據測算，僅副產物處置費用即可增加噸處理成本0.3-0.5元?。

　　03 byproduct dilemma: Resource utilization encounters technological bottlenecks. The by-products generated during the desulfurization process, such as calcium sulfate (gypsum) and sodium thiocyanate, if not effectively utilized, will cause secondary pollution. For example, when the purity of wet desulfurization gypsum is insufficient, it is difficult to convert it into building materials, and the problem of storage and land occupation is prominent; The accumulation of sodium sulfate by-product in dry desulfurization will reverse corrode the equipment, forming a vicious cycle. According to calculations, the cost of by-product disposal alone can increase the processing cost by 0.3-0.5 yuan per ton.

　　04技術路線選擇：效率與成本的博弈?濕法脫硫?：石灰石-石膏法效率超95%，但系統復雜、耗水量大，且易產生“石膏雨”污染；?干法脫硫?：循環流化床工藝節水明顯，但脫硫效率波動大（85-95%），鈣硫比過高時經濟性下降；?生物脫硫?：運行成本低至0.04元/m?，但對氣體成分敏感，規模化應用仍待突破；

　　04 Technical route selection: The game between efficiency and cost Wet desulfurization: Limestone gypsum method has an efficiency of over 95%, but the system is complex, consumes a large amount of water, and is prone to "gypsum rain" pollution; Dry desulfurization: The circulating fluidized bed process saves water significantly, but the desulfurization efficiency fluctuates greatly (85-95%), and the economy decreases when the calcium sulfur ratio is too high; Biological desulfurization: The operating cost is as low as 0.04 yuan/m ?, but it is sensitive to gas composition, and its large-scale application still needs breakthroughs;

　　05運行優化難題：多變量協同控制如走鋼絲脫硫系統需精準調控吸收劑濃度、液氣比、溫度等十余項參數。以某電廠為例，煙氣SO?濃度波動±10%時，若未及時調整鈣硫比，脫硫效率可能驟降8%，同時副鹽生成量增加30%。此外，煤氣中CO?含量過高會消耗碳酸鈉吸收劑，導致脫硫效率與藥劑成本“雙失控”?。

　　05 Operation optimization challenge: Multi variable collaborative control such as steel wire desulfurization system requires precise regulation of more than ten parameters including absorbent concentration, liquid gas ratio, temperature, etc. Taking a power plant as an example, when the concentration of SO ? in flue gas fluctuates by ± 10%, if the calcium sulfur ratio is not adjusted in time, the desulfurization efficiency may drop sharply by 8%, and the amount of by-product salt production may increase by 30%. In addition, excessive CO ? content in coal gas can consume sodium carbonate absorbent, leading to a "dual out of control" of desulfurization efficiency and chemical cost.

　　破局之道:技術創新正在路上面對這些挑戰，行業正探索新路徑：納米改性吸收劑提升反應效率、膜分離技術強化廢水回收、AI算法實現參數智能調控……正如某環保工程師所言：“每個難點背后，都是技術迭代的契機。”唯有持續攻堅，方能讓藍天保衛戰從“達標”走向“高效”。

　　The way to break through: Technological innovation is on the way to face these challenges, and the industry is exploring new paths: nano modified absorbents to improve reaction efficiency, membrane separation technology to enhance wastewater recovery, AI algorithms to achieve intelligent parameter control... As a certain environmental engineer said, "Behind every difficult point is an opportunity for technological iteration." Only by continuously tackling challenges can the blue sky defense battle move from "standard" to "efficiency".

　　本文由  生物脫硫 友情奉獻.更多有關的知識請點擊  http://www.zdgbzlw.com/   真誠的態度.為您提供為全面的服務.更多有關的知識我們將會陸續向大家奉獻.敬請期待.

　　This article is contributed by the friendship of biological desulfurization For more related knowledge, please click http://www.zdgbzlw.com/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.