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The deep processing project of heavy aromatics and polyhydrocarbons at Yili Xintian Coal Chemical Industry involves the handling, in accordance with the relevant provisions of the procedures for approving environmental impact assessments for construction projects, of the environmental impact assessment documents related to the following construction projects by the Environmental Impact Assessment and Emission Management Department of the Xinjiang Ecology and Environment Department. Project Overview: The total investment for this project is 73.86 million yuan. It is a renovation and expansion project located in the vacant area to the southwest of the coal-to-natural gas project within the Yili Xintian Coal Chemical Circular Economy Industrial Park. The project involves the construction of one set of deep-processing equipment for heavy aromatic hydrocarbons, with an annual processing capacity of 200,000 tons. This equipment mainly consists of a distillation unit and a crude phenol unit; the distillation unit comprises a phenol removal tower and a vacuum distillation tower, while the crude phenol unit includes processes such as sequential washing, steam stripping, sodium phenolate decomposition, and sodium carbonate causticization. The supporting utility systems for water supply and drainage, electricity, fire protection, etc., in this project rely largely on the coal-to-natural gas project. For Phase 1 of the project, the raw materials will be 120,000 tons per year of heavy aromatics and 80,000 tons per year of polyhydrocarbons. The product output will consist of 16,200 tons of light hydrocarbons, 58,700 tons of phenol oil, 37,000 tons of washing oil, 76,800 tons of anthracene oil, and 10,000 tons of coal tar pitch ; Phase 2 uses the phenol oil from Phase 1 as raw material, with the product specifications being: 24,100 tons of crude phenol (including 27,000 tons of water) and 34,600 tons of dephenolized oil.