Environmental Impact Assessment for China Huaneng's Daqing 700-Megawatt Cogeneration Project Approved

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Researched by Industrial Info Resources (Sugar Land, Texas)--China's Ministry of Environment Protection approved the environmental impact assessment report for China Huaneng Group's (Beijing) 700-megawatt (MW) Yichun cogeneration project toward the end of September 2010. Subject to final approval from the National Development and Reform Commission, the top planner in China, construction of the project will be ready to begin shortly.

China Huaneng Group won development rights for the project early in 2008. In May 2009, the preliminary feasibility study for the project passed an examination from an expert panel. Later in 2009, China Huaneng Group awarded the survey and engineering contract for the project to Northeast Electric Power Design Institute (Changchun, Jilin), a regional subsidiary of China Power Engineering Consulting Corporation (Beijing). In June 2010, China Environmental United Environment Protection Company Limited (Beijing) completed the preparation of the environment impact assessment report and called for public participation for a second time.

The Huaneng Daqing cogeneration project is in the Ranghulu district of Daqing City, in northeast China's Heilongjiang province. Huaneng Heilongjiang Power Generation Company Limited (Harbin, Heilongjiang), a regional subsidiary of China Huaneng Group, is responsible for the construction and future operation of the project. The project will be built with two 350-MW, supercritical, double-pumping, condensing steam turbine generating units, with two 1,110 tons-per-hour, coal-fired, supercritical boilers in the initial stage.

In addition, the project will be furnished with a limestone-plaster, wet flue-gas desulfurization device; electrostatic dust removers; low-nitrogen burning technology; and a selective catalytic reduction denitration process. The two boilers in the project will be shared with one 210-meter-high, single-duct chimney. Total heat efficiency for the project will be 54.39%, and the thermoelectricity ratio during heating season will be 83.11%. Upon completion, the project will replace 58 small coal-fired boilers with a total capacity of 619 tons per hour, scattered in its scope of heat supply. In the meantime, the 100-MW Unit 3 at the Huaneng Daqing Xinhua Power Plant will be shut down. Total investment of the project will be about $450 million, including $38 million for environmental protection.

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