CH4, CO, CO2 and NH3 in pyrolysis products of three kinds of anthracites were quantitatively analyzed and studied by means of TG-FTIR. The result showed that the start release temperature and release peak temperature of CH4 were gradually increased together with the reduction of the volatile matter content; CO release peak temperature of individual coal sample was basically the same. the start release temperature of CO2 was about 195℃, the release total amount of CO2 was increased with the increase of the volatile mat ters of coal sample, the temperature release law of NH3 was similar, but the release of NH3 of coal sample at 900℃ was not thoroughly reacted, the NH3 release amount of coal sample from Jiaozuo which has maximum volatile matter and nitrogen content was maximum, however, Longyan coal was minimum.

 It is discovered through the study on the stamp-able property of 6 kinds of coal with different coalification degrees that the stamp-able properties of the coals with different coalification degrees have very great differences and the anthracite with medium coalification degree has better stamp-able property. Meanwhile it is found that the most suitable stamping pressure intensity is about 30MPa after the effects of stamping pressure intensity, moisture content and grain size composition on coal cake property are investigated with gas coal and fat coal as study subjects. Each of these kinds of coal has its optimum moisture range and the grain size composition has very obvious influence on coal cake property.

The study situation of lignite extraction with solvent, including the composition features of lignite, selecting principle for extracting solvent is described, and the results of lignite extraction are obtained with different extracting solvents and different extraction modes etc. The study on the lignite extraction with solvent is summed up. It is pointed out that the present study on lignite extraction with solvent is still in the stage of laboratory study and there is long way to go for industrial application.

When coke oven couldn’t keep normal production, normally the method of extending coking time was adopted to lower production capacity. The work of oven temperature adjustment and control, pressure adjustment and control, oven proper maintenance were well done in case of longer coking time. The control measure and experience under the condition of long coking time of coke oven were analyzed, the process indexes such as Kmean, Ksafe and coking heat consumption and oven chamber vertical heating were proposed.

The technologies of process, environmental protection and safety of 7.63m coke oven are described. The various kinds of problems and troubles occurred in the production process are summarized and corresponding improving measures are taken. Production practice shows that 7.63m coke oven has the high levels of mechanization, automation, energy saving, environmental protection and production output.

The properties of domestic 10 kinds of coal for cokemaking and 6 kinds of Australian coal are described. Coal blending experiment is carried out on the basis of single coal study and analysis, and test and industrial test are done with Australian coal to replace domestic coal. The result of experiment shows that when Australian PDC coal is used to replace 25% Jiexu coking coal, coke strength after reaction is improved by 13% and cold crushing strength by 2%.

The internal benefit of the application of cokemaking process of CDQ technology in the production system of the integrated iron and steel enterprise is analyzed and calculated according to the relative data of the commissioning and operation of 140t/h CDQ system of Kunming Iron and Steel Controlling company. The result shows that the replacement of the traditional coke wet quenching process with CDQ process can obtain a certain direct economic benefit. The more important point is that CDQ system can contribute to a comprehensive value to the subsequent iron and steel production process and to the social benefit of energy-saving and discharge reduction of the enterprise.

 The main function and production conditions of SCP integrated stamping machine are described. The stamping machine is characterized by short operation time of single oven, less wattless moving of cars, long service life of parts, less long-term maintenance fee, wide range for adapting production conditions, more safety devices and advanced emergent disposal system for coal spillage. The difficult problem of that production is influenced by the instability of coke oven machines for stamping coke oven is solved tentatively. The continuous and stable production can be realized.

The progress of the study on coking waste water treatment with electrochemical process is discussed from the aspects of micro-electrolysis process, electrolytic oxidation process, electro-coagulation process, three-dimensional electrode process and so on. The advantages and disadvantages of various kinds of processes are analyzed and the developing direction of the coking waste water treatment with electrochemical process is put forward.

The modification of Ni and Co is carried out for the catalyst carriers prepared with type A, B, C and D molecular sieves and various kinds of catalysts are used to do the hydrocracking reaction experiment of PRO resid. The analysis shows that the total conversion rate of condensed aromatics and selection of monocyclic ring compound are related with the pore diameter of catalyst, the metal content has also the effect on them, while the relationship of the selectivity of dicyclic compound and these factors is not obvious.

The reaction principle and process flow of distillate scrubbing dephenolization of tar processing are described. The problem of low phenol content in neutral phenolate is analyzed. The process indexes, such as quality of scrubbing raw material, diluted soda solution concentration, reaction temperature, separation interface etc. are optimized and adjusted. The scrubbing quality after improvement takes a favorable turn. The phenol content in neutral phenolate is raised from 16.39% to 21.79%; the average phenol content in naphthalene oil for dephenolization is reduced by 0.06%; the sale price is increased by approximate 510 RMB yuan/t.

The determination of silicon content in coal pitch with spectrophotometry is studied. After sample is incinerated, it is fused with sodium carbonate under high temperature to form soluble silicate. It reacts with ammonium molybdate to form molybdosilicate yellow and reduces to molybdosilicate blue with ammonium ferrous sulfate under the strong acidic condition. Under the wave length of 810nm, it has maximum absorption and quantification is done with standard curve method. A color development reaction condition test, precise test, recovery rate test and check test are done. The recovery rate with added specimen is in the range from 91% to 105% and relative standard deviation is less than 7%.