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The former Feicheng Chemical Fertilizer Plant of Shandong Aside Chemical Co., Ltd. was originally a small nitrogen fertilizer company with an annual output of 3,000 tons of synthetic ammonia. While expanding their production scale, they produced a forward-looking idea: to make the active ingredients in the coal-fired gasification of the small nitrogenous fertilizer industry the best raw material for the development of carbon-chemistry. So, in 1994, they had a joint venture with a U.S. company in the United States and used the world’s advanced methyl formate production process to extract carbon monoxide from fortified gas to produce formic acid. This was the largest 20,000-ton production facility in Asia at the time. Formed the basis for the development of synthetic ammonia and carbon-chemical recycling industry using formic acid, methanol, urea and synthetic ammonia as raw materials.
According to reports, as early as the small nitrogen fertilizer stage, they began to use the formed raw materials, market advantages to start the extension of the industrial chain: the first use of coal gas production of methanol, ammonia, urea; the second from the gas to extract carbon monoxide and methanol Production of methyl formate, and production of formic acid from methyl formate; third use of formic acid to produce formic acid derivatives such as calcium formate, potassium formate, and ammonium formate; fourth production of methylamine with methanol and synthetic ammonia; and the fifth use of methylamine Production of dimethylformamide with methyl formate; Article 6 Direct synthesis of dimethyl carbonate with urea and methanol; Article 7 Production of formamide with synthetic ammonia and methyl formate. At the same time, intermediate products such as synthetic ammonia, carbon monoxide, methyl formate, nitrogen, oxygen, and argon are also sold as final products in the production process. In the small nitrogenous fertilizer industry, 7 products were first formed into a cyclical industrial chain extending up and down. .
The person in charge of the company told reporters that their seven product chains are not simple, rigid "Lalang matching", but the organic integration of various processes into an inseparable cycle of access, 7 industrial chain is not only a process coupling, process The chain of production and product symbiosis, but also the ecological chain of by-products and waste recycling. At present, the water recycling rate of the company's industrial chain reaches 95%, the reuse rate of waste residue reaches 100%, and the exhaust gas reuse rate reaches 98%.
In the past three years, the company has invested 30 million yuan for research and development, and actively explored a joint production, research and development model. Currently, it has cooperated with the Shanxi Coal Chemical Institute of the Chinese Academy of Sciences, Shanghai Chemical Design Institute, Southwest Chemical Research Institute, Peking University, Beijing University of Chemical Technology, and Tianjin University. More than 10 research institutes and institutions of higher learning have established long-term and stable cooperative relations. They have formed a research-development-production innovation chain of synthetic ammonia and carbon-chemical recycling economy. They have developed six new products and independently assumed 6 science and technology projects, 10 provincial science and technology projects, and urea and methanol direct synthesis of dimethyl carbonate technology in Japan, Europe, the United States applied for a patent for a technological invention. At present, the company's seven industrial chains have a symbiotic cycle, and the utilization rate of gas has reached 95%. Non-nitrogen fertilizer product sales revenue and profits account for 65% and 70% of total sales revenue and profits, respectively.
As a support agriculture industry, the nitrogen fertilizer industry has long been overshadowed by large investment, single product, and low added value haze. Some people even believe that this is the "nature" of nitrogen fertilizer production. The original Ministry of Chemical Industry proposed the development strategy of fertilizer-based and diversified operations as early as the 1980s. The road of synthetic ammonia and carbon-chemical recycling industry chain taken by Astrid has undoubtedly provided a kind of useful experience and model for the diversified operations of the nitrogen fertilizer industry.
Who says that the single product and low added value are the “nature†of nitrogen fertilizer production? Ast company creates ammonia-carbon recycling industry chain
Recently, Shandong Feicheng Astrid Chemical Co., Ltd. took the lead in the domestic trial of 5,000 tons/year of dimethyl carbonate plant with urea and methanol direct method. The device changed the single production method of traditional nitrogen fertilizer “gas-nitrogen fertilizer†and created an ammonia-carbon-chemical cycle ammonia-carbon recycling industrial chain to make the last product and waste become the raw material of the next product. This is undoubtedly a pioneering work in the nitrogen fertilizer production industry. To this end, the reporter conducted an interview with the company.