2025年4月8日，新餘鋼鐵股份有限公司焦爐煤氣精脫硫項目一次投產成功。裝置非常大處理能力17萬Nm?/h，脫硫後的焦爐煤氣中H?S含量控製在5mg/Nm?以下。這標誌著生物脫硫技術完成了從實驗室菌株到百萬噸級工業工程的“工業馴化”。

On April 8, 2025, the coke oven gas desulfurization project of Xinyu Iron and Steel Co., Ltd. was successfully put into operation for the first time. The maximum processing capacity of the device is 170000 Nm?/h, and the H2S content in the desulfurized coke oven gas is controlled at 5mg/Nm? following. This marks the completion of the industrial domestication of biological desulfurization technology from laboratory strains to million ton industrial engineering.

微生物的“合理打擊”：從菌株篩選到工業應用。

Precise targeting of microorganisms: from strain screening to industrial applications.

生物脫硫技術的核心，是一群經過“特訓”的微生物。南京工業大學胡永紅團隊經過數千次實驗，成功篩選並馴化出能“吃掉”硫化物的微生物——硫酸鹽還原菌係列、硫氧化菌係列等一批擁有自主知識產權的高活性、高耐受性的特種微生物菌株。這些微生物在生物滴濾塔裝置中各司其職：堿液首先將煙氣中的二氧化硫吸收並轉化為硫酸根和亞硫酸根，隨後通過硫酸鹽還原菌的作用將其還原成硫離子，非常後硫氧化菌再將硫離子轉化為生物硫黃。

The core of biological desulfurization technology is a group of specially trained microorganisms. After thousands of experiments, the team led by Hu Yonghong from Nanjing University of Technology has successfully screened and domesticated a group of highly active and tolerant special microbial strains with independent intellectual property rights, such as sulfate reducing bacteria series and sulfur oxidizing bacteria series, which can "eat" sulfides. These microorganisms play their respective roles in the biological drip filtration tower device: the alkaline solution first absorbs and converts sulfur dioxide in the flue gas into sulfate and sulfite ions, then reduces them to sulfur ions through the action of sulfate reducing bacteria, and finally sulfur oxidizing bacteria convert sulfur ions into biological sulfur.

曆經10餘年，胡永紅團隊的生物脫硫技術完成了從小試、中試到工業試驗驗證的全過程，技術已在中國石油化工股份有限公司西南油氣分公司川西氣田彭州3號脫硫站實現應用。尾氣焚燒爐煙氣經生物脫硫後，二氧化硫濃度從6500mg/Nm?降至小於10mg/Nm?，去除率達到99.8%。脫硫能耗較原有技術下降10%以上。

After more than 10 years, the biological desulfurization technology of Hu Yonghong's team has completed the entire process from small-scale, pilot scale to industrial trial verification. The technology has been applied at the Pengzhou No.3 desulfurization station in the western Sichuan gas field of Southwest Oil and Gas Company of China Petroleum&Chemical Corporation. After biological desulfurization, the concentration of sulfur dioxide in the flue gas from the tail gas incinerator increases from 6500mg/Nm? Reduced to less than 10mg/Nm? The removal rate reached 99.8%. The energy consumption of desulfurization has decreased by more than 10% compared to the original technology.

工業馴化的技術突破：DDS生物脫硫的實踐驗證。

Technological breakthrough in industrial domestication: practical verification of DDS biological desulfurization.

新鋼集團的DDS煤氣精脫硫項目，是生物脫硫技術“工業馴化”的又一力證。該項目繼承了國內首套焦化DDS生物脫硫裝置的技術優勢，集成了“噴射氣浮”再生反應器等多項專利技術。相較於傳統脫硫技術，DDS生物脫硫技術以其化學與生物技術的巧妙結合，有效解決了脫硫塔堵塞、廢液外排等難題。裝置投產達標後，焦爐煤氣中的硫化氫含量可降至5mg/Nm?以下，有機硫脫除率超50%。每年可減少二氧化硫排放約1950噸。

The DDS gas desulfurization project of New Steel Group is another proof of the industrial domestication of biological desulfurization technology. This project inherits the technological advantages of China's first coking DDS biological desulfurization device and integrates multiple patented technologies such as the "jet air flotation" regeneration reactor. Compared with traditional desulfurization technology, DDS biological desulfurization technology effectively solves the problems of desulfurization tower blockage and waste liquid discharge through the perfect integration of chemistry and biotechnology. After the device is put into operation and meets the standards, the hydrogen sulfide content in coke oven gas can be reduced to 5mg/Nm? Below, the organic sulfur removal rate exceeds 50%. Approximately 1950 tons of sulfur dioxide emissions can be reduced annually.

生物脫硫的“馴化”邏輯：從實驗室到車間的三重跨越。

The domestication logic of biological desulfurization: a triple leap from laboratory to workshop.

生物脫硫的產業化之路，完成了三重跨越。第一重：菌株馴化——從自然界篩選出具有脫硫能力的微生物，通過實驗室培養和誘變育種，提升其脫硫效率和環境耐受性。第二重：工藝馴化——將微生物的代謝活動“裝進”工業設備中，開發出生物滴濾塔、生物洗滌塔等成套裝備，實現氣液固三相的準確控製。第三重：係統馴化——將生物脫硫嵌入完整的工業氣體淨化鏈條中，與變壓吸附、膜分離等提純技術協同運作。

The industrialization path of biological desulfurization has completed three leaps. First priority: strain domestication - selecting microorganisms with desulfurization ability from nature, and improving their desulfurization efficiency and environmental tolerance through laboratory cultivation and mutagenesis breeding. Secondly, domestication of technology - incorporating the metabolic activities of microorganisms into industrial equipment, developing complete sets of equipment such as biological drip filtration towers and biological washing towers, and achieving precise control of gas, liquid, and solid phases. Third level: System domestication - embedding biological desulfurization into a complete industrial gas purification chain, and operating in conjunction with purification technologies such as pressure swing adsorption and membrane separation.

從實驗室的試管到鋼鐵廠的脫硫塔，生物脫硫技術正在完成一場靜默而深刻的“工業馴化”。當微生物在17萬Nm?/h的焦爐煤氣中“大快朵頤”地將硫化物轉化為單質硫時，羞羞的网站在线观看看到的不僅是一項技術的成熟，更是“向微生物要生產力”的工業化想象正在變成現實。正如胡永紅所說：“這好比魚缸裏的水變髒後，羞羞的网站在线观看不是直接倒掉髒水，而是放入一些能夠分解雜質的魚兒或水草。”在這場由微生物主要的淨化革命中，生物脫硫正在用非常低的能耗、非常小的環境代價，完成工業氣體淨化中非常艱巨的任務。

From laboratory test tubes to steel plant desulfurization towers, biological desulfurization technology is completing a silent and profound 'industrial domestication'. When microorganisms "feast" on converting sulfides into elemental sulfur in 170000 Nm?/h coke oven gas, what we see is not only the maturity of a technology, but also the industrial imagination of "demanding productivity from microorganisms" is becoming a reality. As Hu Yonghong said, "It's like when the water in a fish tank gets dirty, we don't just pour out the dirty water, but put in some fish or aquatic plants that can decompose impurities." In this purification revolution led by microorganisms, biological desulfurization is completing the most difficult task in industrial gas purification with the lowest energy consumption and environmental cost.

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