Potential Analysis And Synergy Approaches Of Energy Saving And Pollution Reduction

Industry is an important field of energy saving and pollution emission reduction. As environmental standard become more and more strict, environmental indicators continue to increase, which makes control of environmental objectives more complex. The control of environmental objectives should not only be emphasized on one target, but need to consider all the environmental objectives collaboratively. This thesis takes steel industry as an example. By industry technology system simulation and bottom-up modeling, an industrial energy saving and pollution reduction potential analysis model was constructed, and was used to estimate potential of energy saving, water and air pollution reduction of steel industry in 2020, analyze co-benefits of energy saving and pollution reduction and develop appropriate technology policy. Moreover, thesis analyses environmental objectives setting and parameter control under uncertainty with Latin sampling and HSY algorithm. Then further taps energy saving potential brought by inter-sectoral solid wastes disposal through building regional industrial solid wastes co-processing model.Results show that:(1) In 2020, total energy consumption of China’s steel industry are 448 million tons of standard coal, decrease 0.11 million tons of standard coal compared with year 2013, comprehensive energy consumption per ton of steel decrease 36.1 kilogram standard coal. Energy saving measures will shift from advanced technology applying to industry restructuring.(2) In 2020, sulfur dioxide, smoke dust and nitrogen oxides emissions will be reduced by 254000 tons, 132000 tons and 89000 tons. During ―Thirteen Five Planning‖, nitrogen oxides control will be great resistance. Iron industry should develop new standard for nitrogen oxide emissions as soon as possible, accelerate developing denitration technology and take different pathways to control nitrogen oxides of different procedures.(3) In 2020, Ammonia emissions decrease 31 tons, but emissions of chemical oxygen demand increase 436 tons. Since end of treatment technology potential gradually become saturated, water pollution control will depend on cleaner production technology and industry structure adjustment in the future.(4) Iron industry should focus on strengthening synergic control of energy-saving and nitrogen oxides, chemical oxygen demand,ammonia, consider energy saving and pollution reduction potential, promotion space, economic benefits when making technology promotion policy. ―One size fits all‖ technology policies should be changed to differentiated technology policies with a variety of subsidy methods.(5) Energy saving per ton of steel and total energy saving objectives can be set at 33.2 kilogram standard coal and 6.85 million tons of standard coal. When iron teel ratio exceeds 0.840, energy saving per ton of steel objective will be a great risk. When crude steel production exceeds 862 million tons, total energy saving objective will be a great risk.(6) Handan can bring energy savings potential of 165000 tons of standard coal and 363 million yuan through co-processing fly ash, gypsum and steel slag. Solid waste disposal policy should enhance inter-regional cooperation, consider elimination of backward industrial capacity and co-processing capacity of industry in the future.