The development and application situation of SCOPE 21 coke-making technology was introduced, through the comparison and analysis on development and application, the difference existing between the expected case and applied case of SCOPE 21 can be seen. The difference between SCOPE 21 commercial device and single oven test device showed that hot briquetting temperature was reduced from 350~400℃ to 165℃; the temperature of coal charged into oven was reduced from 350~400℃ to 250℃;  coke cake temperature was increased from 750~850℃ to 1 000℃; the coking time was extended from 7.4h to 13h. As viewed from actual operation condition, there was a certain difference between practicable effect SCOPE 21 commercial device and expected effect of single oven test device.  

The features and present research situation of solid desulfurizers of iron, zinc, manganese and activated carbon systems etc. are analyzed and summarized. Iron oxide belongs to atmospheric temperature desulfurizer and can be used independently or used together with atmospheric temperature hydroxide radical sulfur hydrolyzed catalyst, but its desulfurization accuracy is low. After compounding, its desulfurization accuracy is improved, but the temperature is raised. The desulfurizer of zinc system has a higher desulfuriza?鄄tion temperature, but its desulfurization accuracy is reliable, it is widely used in industry. The desulfurizer of manganese system has a superior performance under high temperature and a strong regeneration capability, but it has a small sulfur capacity at lower temperature and it is normally used for smoke desulfurization under high temperature. The desulfurizer of activated carbon system is more suitable for the removal of organic sulfur.

The high volatile non-caking coal was preheated at different atmosphere, different temperature and different time in the self-designed heat treatment device. The influence of heat treatment condition on oxygen containing functional group, coal molecular structure, vitrinite random reflectance as well as pyrolysis and caking tendency were studied. The result showed that the volatile matter of non-caking coal after heat treatment was removed by 21%~25%; the hydroxyl removal rate in oxygen containing functional group of coal sample can be up to 90% or more; the H/C change of treated sample was not big, O/C is lowered by 50%. The experiment showed the possibility that the coal blend components can be replaced by the preheated coal sample.          

The study on co-carbonization of coal tar pitch and lean coal with different blending ratios was conducted. The study showed that interaction of co-carbonization of coal tar pitch and lean coal was the coaction of physical bond and chemical interaction, in which the bond state of coke interface was improved by physical bond, and coal tar pitch varied the carbonization behavior of lean coal through chemical interaction with the increase of the blending ratio of coal tar pitch, the caking property of coal blend was greatly improved, OTI  value of coke was increased, while ISO value was reduced. Coal tar pitch reduced coke reactivity and increased coke strength after reaction by means of increasing coke optical anisotropy.

The influence of 3 different kinds of tail gas treatment modes on thermal reactivity and strength after reaction of coke was studied. The result showed when tail gas was burnt off, coke thermal reactivity was the highest, and the strength after reaction was the lowest, the burning of tail gas deduced with alcohol lamp was in the middle; when tail gas was bled, the thermal reactivity of coke was the lowest and the strength after reaction was the highest. Under the same tail gas treatment mode, when the cold end temperature of thermocouple was 66℃, the thermal reactivity of coke was higher than 36℃; the law of coke thermal strength after reaction of 36℃ and 66℃ of cold end temperature of thermocouple was tended to the same.       

The working principle and moving features of the driving mechanism of stamping machine are analyzed by selecting the design method and topological plan of kinematic link structure. And on the basis of the driving mechanism of the existing stamping machine, the topological analysis of the new structure is done, a series of regenerative kinematic links are evolved and the regenerative kinematic links are converted into a new type stamping driving mechanism. The study shows that under the prerequisite of no change of other conditions, the useful work done by the stamping hammers of the new plan is increased by 133.2J in comparison with that done by the stamping hammers of the original plan.

The carbon balance method is adopted for the calculation of CDQ coke burning loss at present. The carbon balance method can determine the burning loss of CDQ coke during stable operation, but when the production statistic is carried out, it is not preferred. The carbon balance method for the calculation of CDQ coke burning loss and for CDQ steam generation rate statistic is described in the paper. The method does not need to do the carbon discharge measurement and can be used for statistic calculation at any time. It is simple and its accuracy can meet the requirement of production statistic, meanwhile the analysis and discussion on the causes of coke burning loss during the operation of CDQ system are carried out.

The wet oxidation desulfurization technology using RTS as catalyst  and actual running effect were introduced. RTS catalyst is of high efficiency in desufurization. It can separate out inorganic sulfur as well as part of organic sulfur, and the obtained sulfur is big in size and uniform.  The practice showed that the desulfurization process running and desuilfurization effect were stable, the content of H2S in the purified gas was 10~20mg/m3, which can meet the demand of desulfurization for high sulfur coal.     

The process of producing 40 000 t/a benzene anhydride with o-xylene by means of Aspen software was simulated, and the simulation results were analyzed. Cis-butendioic anhydride, benzoic acid and phthalide in light fraction column T201 were removed on the column top, the overhead component: benezene anhydride 25.74%, cis-butendioic anhydride 39.11%,  benzoic acid 25.37%, phthalide 9.78%. For product column T202 top, except that very small amount of benzoic acid and  phthalide were contained, the rest was benzene anhydride, the column bottom was heavy component, which can meet the separation requirement. In actual production, benzene anhydride content in light fraction was about 50%, therefore the reflux ratio in production operation can be enlarged, which can optimize the operation.

The circulation flow liquid phase micro-extraction (CFME) and gas chromatography-hydrogen flame ion detector were combined for analysis of phenolic compound in waste water, the condition optimum were conducted on the factor of influencing CFME, CFME and the national standard were compared. The result showed that CFME method after optimization and the national standard have good linear relationship, CFME has the advantages over simple operation, low cost, rapid  and accurate feature.