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Green technology for methanol synthesis catalysts: Evaluation results/Author/Source: Sinochem New Network Date: August 18, 2020 Clicks: 13 Recently, the project aimed at developing key green production technologies for methanol synthesis catalysts, carried out by the Nanjing Research Institute of Chemical Technology, passed the evaluation of scientific research achievements organized by the Science and Technology Department of Sinopec. The wastewater treated with this technology can be reused as fresh water, and sodium nitrate products meeting industrial standards can also be recovered from it, resulting in a 30% reduction in water consumption per ton of catalyst and an 18% reduction in steam usage. At present, the production level in China’s catalyst industry is relatively low, resulting in a large amount of high-salt wastewater being generated during the production process. With the increasing emphasis on environmental protection, the wastewater discharge standards for the refining industry are also being raised gradually; the wastewater generated during catalyst production must be treated to meet these discharge requirements. In 2019, the Science and Technology Department of Sinopec initiated research on the development of green production processes for methanol synthesis catalysts, with the aim of separating and reusing wastewater containing copper ions, zinc ions, sodium ions, and nitrate ions, thereby achieving near-zero emissions from the wastewater generated in the production of copper-zinc catalysts. Nanhua Institute took on the research and development work for this project. They conducted laboratory studies on the wastewater generated during the production of methanol synthesis catalysts using special filtration and adsorption methods, as well as pilot-scale studies on-site. To date, this project has applied for 2 Chinese invention patents.