The composition of tar obtained from independent pyrolysis of coal and municipal solid waste and co-pyrolysis of coal and municipal solid waste under different blending ratio by means of 2kg simulating coke oven system was analyzed. The result showed that the composition of tar from pyrolysis of Shenhua coal was mainly contained with aromatic hydrocarbon（41.13%）and alkane（30.79%）；the composition of tar from pyrolysis of municipal solid waste was mainly contained with olefine（25.70%）and alkane（28.38%）. Compared with the data from theoretical calculation, the oil content such as benzene and naphthalene in co-pyrolytic tar was increased by 3.20%~7.97%, the content of chain hydrocarbon（alkane and ole fine） was increased by 10.14%~ 12.69%,  the organic composition of the oxygen-bearing functional group was reduced by 6.6% ~ 14.64%, the composition of tar from pyrolysishad the obvious “chain hydrocarhylation” tendency.  

The low NOx combustion gas reburning process was analyzed, the mechanism of NH free radical with NO reaction was studied by means of the quantum chemical density functional theory, the geometry of reactants, intermediates, transition states and products in reaction process were optimized, and their energy was calculated, at the same time the vibration analysis was conducted so as to determine reality of intermediates and transition states. The NH free radical and NO reaction mechanism and experimental results were verified and compared, by means of simulating important theoretical reference value and practical guide on the understanding of the nature and main process of denitrification during reburning.

According to the feature of containing SO2 and H2S in semi-coke gas, a new semi-coke desulfurization process that is different from the process for high temperature cokemaking is put forward in combination with the existing desulfurization process. In the process lime water is first used to scrub the SO2 in the gas quickly, then SO2 is removed from the gas by super-gravity force machine so as to reduce the total sulfur content in the gas and to meet the required discharge standard of national environmental protection.

b value of coals with two different blending ratio was measured by Audibert-Arnu dilatometer, the optimal blending ratio was calculated by mathematical method, and the optimal blending ratio was proved by the coking test in laboratory. The results showed that the optimal blending ratio of two kinds of coals measured with Audibert-Arnu dilatometer in combination with mathematical method was basically correct. But for some low and middle rank coals with less inert matters and higher volatile matter, when blending it existed abnormal law and phenomenon. This method could also be applicable to calculate the optimal blending proportion of three or more kinds of coals, but the tolerance might be increased.

Coke sample is made by the method in which the coke with a certain grain size is immersed in the solution of alkali metal compounds（K2CO3+Na2CO3） with different proportioning ratios. The CRI  experiment is carried out for coke sample by the use of thermogravimetric balance, and analysis is done by SEM and energy spectrum. The result of the study shows that the composite catalysts of alkali metals K and Na with different proportioning rates have different catalysis results. K2CO3 has a greater contribution to the catalysis of the reaction of loss by solution of coke. The main catalysis time of the reaction of loss by solution of coke is the first 10 minutes. The K and Na contents in coke sample immersed in alkali metal solution are increased with the increase of K and Na contents in alkali solution.

The analogue coke reactivity and coke strength after reaction were adopted, the relation between thermal properties and microstructures of coke produced from single coal with different metamorphism was studied. The coke produced from medium rank of coal such as coking coal, fat coal and lean coal had higher anisotropy, however the coke produced from low rank gas coal, 1/3 coking coal and higher rank meager coal had lower anisotropy. The coke thermal properties and coke anisotropy had good correlation, the coke reactivity was reduced with the increase of anisotropy, while coke strength after reaction was increased with the increase of anisotropy.

The application of intelligent central management and control at the Coking Plant of Jinan Iron & Steel Company was introduced,  the problems to be solved for realizing intelligent central management and control were put forward, the suggestion was given for the development orientation of the coking production automation. The basic automation level of the Coking Plant of Jinan Iron & Steel Company is basically complete, however, the production data information platform of the whole process flow of coal, coke and by-products was not formed yet, the flat management and control of coke oven batteries and full automatic running of coke oven machinery should be further deepened.

The correlativity between COD and UV254 value during the treatment of coking wastewater is studied in the paper. The result shows that the COD and UV254 values of the water discharged from the biological system and of the water after further treatment have very good correlativity and the correlativity factor is about 0.988. The further treatment result can be predicted through the quickly measurement of the value of UV254.

The applications, basic principles, treatment results, advantages and disadvantages of biological process, flocculation process, adsorption process, chemical oxidizing process and film separation technology in coking wastewater decolorization are described. For the coking wastewater decolorization, the appropriate process is to be selected and several kinds of technologies can be combined together to raise removing rate.

The test of a flat plate film SMBR device in the coking plant is described. The result shows that the coking wastewater treatment with the flat plate file SMBR device is characterized by many advantages, such as strong impact resistance capability, high removal efficiency of ammonia nitrogen and COD, stable sludge concentration, less generated sludge amount, film strong resistance capability to pollution, long cleaning interval, stable discharged water index and so on. The externally discharged water can be up to the national class I standard.