“The “technology for treating volatile pollutants in circulating water in fixed-bed batch gas production” was developed through the science and technology department of the China Nitrogen Fertilizer Industry Association...

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Three technologies developed by Zhengyuan Group, including the “Fixed-bed intermittent gas generation circulating water volatile pollutant treatment technology,” have passed the evaluation for scientific and technological achievements by the China Nitrogen Fertilizer Industry Association. Author/Source: Zhengyuan Group; Date: November 18, 2020; Clicks: 6. On November 9, these technologies – which possess independent intellectual property rights – were evaluated for their scientific and technological merits in Cangzhou City by the China Nitrogen Fertilizer Industry Association: the “Fixed-bed intermittent gas generation circulating water volatile pollutant treatment technology,” the “Ammonia evaporation from shift condensate to reduce NH3-N levels in gasification wastewater technology,” and the “Integrated treatment technology for Claus sulfur recovery exhaust gases and ultra-low emissions from boilers.” The experts who participated in this evaluation were Gu Zongqin, former president of the Petroleum and Chemical Industry Planning Institute; Dr. Liu Yu from the Air Pollution Control Technology Research Center at the Chinese Academy of Environmental Sciences; Yu Zifang, general manager of Shanghai Damen Chemical Engineering Technology Co., Ltd.; Cui Zongzhao, general manager of Jinmei Jinshi Chemical Investment Group Co., Ltd.; Wang You, executive vice president of Shanxi Lanhua Technology Entrepreneurship Co., Ltd.; Ma Lixin, a senior engineer from the Beijing branch of China Global Engineering Co., Ltd.; and You Chuanbei, vice general manager of Hubei Sanning Chemical Co., Ltd. Wang Weijun, Chairman and General Manager of Zhengyuan Group, Liu Jincheng, Director of the Technical Committee, Zhang Changqiu, General Manager of the design company, Liu Huiqin, Deputy General Manager of the design company, as well as relevant personnel from the Technical Committee, the design company, and Zhengyuan Hydrogen Energy attended the meeting. Wang Liqing, Secretary-General of the China Nitrogen Fertilizer Industry Association, and Cao Zhangan, Chief Engineer, attended and presided over the meeting. Liu Jincheng delivered a report on scientific and technological achievements on behalf of Zhengyuan Group. “The \"Technology for Reducing NH3-N in Vaporized Greywater through Condensate Ammonia Evaporation\" and the \"Technology for Integrated Treatment of Flue Gases from Claus Sulfur Recovery and Ultra-Low Emission Requirements in Boilers\" are two highly applicable and practical technologies independently developed by Zhengyuan Group, taking into account the actual conditions of existing equipment and technologies in the industry as well as applying systems engineering methods. These technologies prove to be very effective in improving the operational performance of existing facilities and reducing both investment and operating costs. These two technologies have currently been put into industrial use at Zhengyuan Hydrogen Energy, with good operational results. At the 2020 China Nitrogen Fertilizer and Methanol Technology Conference held in August this year, these two technologies won the first and second prizes of the Science and Technology Award awarded by the China Nitrogen Fertilizer Industry Association for 2020. With the ongoing industrial upgrading and capacity reduction in China’s nitrogen fertilizer industry, environmental issues such as the emission of volatile pollutants from the circulating water used in the gas production process of enterprises employing fixed-bed batch gas generation technology have become one of the key factors affecting their survival. To address this issue, the \"fixed-bed batch gas generation circulating water volatile pollutant control technology\" independently developed by Zhengyuan Group was introduced. This technology addresses environmental issues such as unpleasant odors at the site, emissions of volatile pollutants, and the generation of wet slag, effectively eliminating the uncontrolled release of pollutants from the gas generation circulating water system. The demonstration unit of Hebei Dongguang Chemical Co., Ltd. and the renovation project of its First Plant were put into operation in November 2019 and August 2020 respectively, and the units are operating stably and reliably. In the short to medium term, this technology will become one of the key alternative technologies for the transformation and upgrading of many fixed-bed batch gas production enterprises. On the morning of November 9, the delegates visited the demonstration unit for the \"Fixed-bed batch gas generation circulating water volatile pollutant control technology\" at Hebei Dongguang Chemical Co., Ltd.