A Life Cycle Analysis of Deploying Coking Technology to Utilize Low-Rank Coal in China

At present, the excess capacity in China’s coke industry can be deployed to utilize some low-rank coal, replacing coking coal with potential economic gains, energy efficiency, and environmental benefits. This study presents a life cycle analysis to model these potential benefits by comparing a metallurgical coke technical pathway with technical pathways of gasification coke integrated with different chemical productions. The results show that producing gasification coke is a feasible technical pathway for the transformation and development of the coke industry. However, its economic feasibility depends on the price of cokes and coals. The gasification coke production has higher energy consumption and CO2 emissions because of its lower coke yield. Generally speaking, using gasification coke to produce F-T oils has higher economic benefits than producing methanol, but has lower energy efficiency and higher carbon emissions.

THE MAIN TRENDS IN THE DEVELOPMENT OF WORLD COKE-CHEMICAL INDUSTRY AT THE PRESENT STAGE

Materials describing the current state of the global coke industry and the main trends of its development are represented. Data on production of major coke producers in the world are also represented. It is shown that the slowdown of technical development of coke industry requires to compensate it by creating of flexible towards to coal base technology, which would contribute to produce coke of desired quality, reduction of cost production and reduce environmental pollution. Shown special significance of use of technology of coke dry quenching in coke production and the role of SE «GIPROKOKS» in the development and improvement of this energy saving technology, its promotion on the world market. Are considered the main technological aspects of two-products technology of coke production, that provide in addition to obtaining the coke as the main product to produce coke-oven gas containing more than 60 % hydrogen and 30 % carbon monoxide. Receiving the coke oven gas of a specified composition allows to significantly expand the scope of its application. Are considered technology directed to the expanding of coal raw materials base of coking and improving the quality of metallurgical coke. Bibl. 6, Fig. 2, Tab. 2.

Research on the Energy Management and Development of Semi Coke Industry

More and more attentions have been paid to the world energy saving and environment protection. semi coke industry developed from the 1970s to the present, technology is relatively mature, has begun to take shape. But semi coke industry has issues of its own, mainly dealing with high energy consumption and management issues[1]. Therefore, the semi coke industry energy management related research, improving industrial energy efficiency, that is the semi coke industry carrying out the scientific view of development, and an important way to improve the efficiency and sustainable development.

Research on the Energy Saving Technical Reconstruction and Development of Semi Coke Industry

Influenced by both coal prices and energy-saving emission reduction situation, the development of semi coke industry has encountered a bottleneck in our country. Therefore, the semi coke industry energy saving technology related research, improving industrial energy efficiency, that is semi coke industry to improve the utilization rate of resources, the sustainable development of the important way.