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四川阿坝州地区地处高原山区,拥有水电和地矿资源优势,以该优势为基础,规划了资源综合利用循环经济型发展项目。利用阿坝州山区水电资源发展高效电化学化工产业,以45×104t/a氯酸钠和30×104t/a电石为基础,将氯酸钠电解尾气(H2)和电石炉(采用密闭式电石炉)尾气(CO、CO2)回收充分利用合成甲醇,再以甲醇为原料生产高附加值下游产品——二甲醚、甲醇蛋白、甲醛、脲醛树脂、中(高)密度纤维板。形成了40×104～50×104t/a氯酸钾,30×104t/a电石,15×104t/a甲醇,5.0×104t/a二甲醚,2.0×104t/a甲醇蛋白,8.0×104t/a甲醛,12×104t/a脲醛树脂,30×104m3中、高密度纤维板的生产规模。项目总投资21.71亿元,年销售收入为45.59亿元,年利税达到10.29亿元。回收尾气可增产15×104t/a甲醇,所用甲醇合成工艺比常规工艺能耗降低1/3,除了可观的经济效益外,每年还可减排CO223.3×104t,实现了保护生态、振兴地方经济的科学发展。
Aba Prefecture, Sichuan Province is located in the plateau mountainous areas, with hydropower and mineral resources advantages, based on the advantages of planning the comprehensive utilization of resources circular economy development projects. Utilizing hydropower resources in mountain area of Aba to develop high-efficiency electrochemical chemical industry, based on 45 × 104t / a sodium chlorate and 30 × 104t / a calcium carbide, electrolysis of sodium chlorate electrolysis exhaust gas (H2) and calcium carbide furnace ) Recovery of tail gas (CO, CO2) Fully utilize synthetic methanol, and then use methanol as raw material to produce high value-added downstream products - dimethyl ether, methanol protein, formaldehyde, urea formaldehyde resin and medium / high density fiberboard. The formation of 40 × 104 ~ 50 × 104t / a potassium chlorate, 30 × 104t / a calcium carbide, 15 × 104t / a methanol, 5.0 × 104t / a dimethyl ether, 2.0 × 104t / a methanol protein, 8.0 × 104t / a formaldehyde , 12 × 104t / a urea-formaldehyde resin, 30 × 104m3, the production scale of high-density fiberboard. The total investment of 2.171 billion yuan, annual sales income of 4.559 billion yuan, annual profits and taxes reached 1.029 billion yuan. Recovery of tail gas can increase 15 × 104t / a methanol, the methanol synthesis process used to reduce energy consumption than the conventional process 1/3, in addition to considerable economic benefits, the annual emission reduction CO223.3 × 104t, to achieve the protection of ecology and rejuvenation of the place Economic development of science.