This paper introduces the physical and chemical characteristic and present application of bio-carbon,illustrates the application of bio-carbon in the fields of environment protection,soil restore and improvement,relief of energy crisis and so on,and points out its significance and development direction in the aspect of environment and energy crisis.

This paper introduces the structure features of Fushun type gas retort.Factors influencing the oil recovery are analyzed based on the running features of the existing gas retort.Measures to improve the oil recovery and production capacity are proposed，which has great significance to optimize the retort type and adjust oil recovery process，diagnose and confirm the main factors influencing the oil recovery，and especially improve the production output and efficiency.

The influence of moisture content in coal charge to the cold and hot strength and grain size is studied.This paper compares the difference of center temperature of coke cake from same dry coal but different coal cake height.The experiment result shows that as the moisture content reduces，the dry basis coke rate increases，but the shrinkage rate of coal cake decreases，the cold and hot strength of coke are improved，especially the coke strength after reaction is improved remarkably，the coke grain size decreases and uniformity of coke is getting better.Under the condition of same dry coal，temperature of coke cake at the center rises faster as the moisture content decreases.

The lid lifting mechanism for double U gas transfer car is a four-claw mechanical tong,which cannot accurately take,lift,lower down and locate the lid.As a result the de-dusting effect is affected.After C type tong is adopted for two gas transfer cars,the operation is more convenient and reliable,damage of equipment is eliminated,operation time is shorter,and the charging emission control effect is obviously improved.

This paper introduces the advancement and features of pushing control for SCP machine of 6.25m stamp-charging coke oven, analyzes the pause in front of oven and pushing process, pushing resistance and pushing current comparing with the conventional pushing process, and proposes a creative control method for step acceleration and constant pushing, by which the pushing process is optimized and pushing current is decreased. It is of great significance to protect coke oven proper and prolong the service life of coke oven.

The significance of on-line analysis of circulating gas of CDQ system is discussed.Take Wuhu CDQ project as an example,the circulating gas analysis system of SERVOMEX is introduced regarding to its structure,working principle,maintenance and instructions.Dry filtering sampling probe; Purging disc; Gas analyzer; CDQ; Circulating gas

This paper introduces the economic budget analysis for the technology of coal blending with coke breeze instead of lean coal.The investment budget is detailed from the aspect of coking technology so as to provide data and investment basis for the application of this technology.

This paper analyzes the problems existing in the traditional rotary sealing valve,and introduces the technical innovation and improvement of new rotary sealing valve.The new rotary sealing valve has the advantages of stable performance,less failure and longer service life,which is good for stabilizing production,increasing output and efficiency and energy saving.

This paper introduces the integrate casting on the corbel area and ring air duct of CDQ.The production target is satisfying.Air flow reaches 75,000m3/h,and the technical and economic indexes are normal.It is good for the stable operation of CDQ and prolonging the maintenance cycle.

This paper introduces the application of H fin sub-economizer in CDQ system.The H fin sub-economizer has the advantages of less dust accumulation,high abrasion resistance,less resistance to smoke and high heat exchange efficiency,so it has been widely adopted.

This paper analyzes the problems for fixing of oven door by oven door rotating maintenance device,and proposes a new method for fixation of oven door.With the simulation model of Solidworks,the force analysis of oven door under this new method is worked out.The feasibility of the new method is verified.The new method improves the force bearing condition of oven door and improves the safety and reliability of the device.

Coal blending quality,heating quality,carbon penetration,burning loss in CDQ and carbon powder adhesion are the main factors for the generation of immature coke.The proportion of immature coke can be remarkably reduced by optimizing the coal blending proportion,heating system and CDQ operation,so that the coke quality can be improved.

This paper introduces the main ideas for renovation and expansion of old coking plants.The general layout shall be designed with comprehensive consideration of short term and long term plan,less land occupation and comprehensive utilization of land.The general layout shall be scientific and feasible to minimize the cost,consumption and deviation.

To meet the process control requirement,renovation and improvement have been made on the actuator for coke oven heating,transmitter of heating control system,PC panel of automatic control system,computer table in the control room,level measurement device in quench basin,pressure regulating device for gas collecting main and the program for reversing machine.After renovation,the coke oven automatic control system runs properly,and the automation level of coke oven control is improved.

Regarding to the problems existed in the traditional gas condensate tank,the 5 water seals in the negative pressure area were renovated.U tube energy saving and environment protecting gas water seal was adopted.The waste heat of circulating ammonia liquor was utilized to insulate and flush the water seal.It has good energy saving and environment protecting effect.

The accuracy of automatic coal blending is affected by control algorithm,feeding system and the accuracy of weighing system.Based on the analysis of the affecting factors,methods and measures to improve coal blending accuracy are proposed.

A linear programming model of heat exchange network for distillation is established to quickly determine the optimal distillation flow structure and operation parameters with the smallest amount of public work (or cost) and simplify the synthesis of complex distillation system.Finally the feasibility of the mode is verified by examples.

The low temperature coal tar from Inner Mongolia was distillated effectively,and the distillate oil was separated to phenol oil and neutral oil through acid-base solution extraction.The chemical composition and structure of phenol oil and neutral oil were analyzed in a quantitative and qualitative way by GC-MS technology.The result shows that there are 40 kinds of compounds with mass fraction more than 0.1% in the phenol oil,mostly of which are phenol,alkyl phenol and naphthol; there are 104 kinds of compounds with mass fraction more than 0.1% in the neutral oil,mostly of which are alkene,alkane and naphthalene,etc..

This paper analyzes the problems existed in the packed columns and introduces the structure features and design principle of multi-layer distributor.With installation of multi-layer distributor,the mass transfer efficiency can be remarkably increased and the resistance of the column can be reduced.

Simulation calculation has been worked out for the primary tower and rectification tower of industrial naphthalene unit with the help of Aspen Plus chemical simulating software.Influence of process parameters to the product quality and energy consumption was studied.The production power consumption is reduced by optimizing the process parameters.

This paper introduces the anhydrous ammonia production process,analyzes the negative factors for production of anhydrous ammonia,proposes measures such as adding water cooling naphthalene washing device,improving the demister after desulfurization and strengthening the heat insulation of the system to optimize the production process of anhydrous ammonia.It provides reference for the new construction and renovation of anhydrous ammonia device in other similar plants.

Taking the experience of similar projects as example,by comprehensive analysis and comparison of various selection scheme for selection of process centrifugal compressor,this paper proposes a method for selection of compressor during engineering design.

LNG production from COG has become a new utilization of COG.This paper introduces the features of LNG,process flow of LNG production from COG and the applicable codes for general layout and transportation design.The key point for general layout is described in detail in this paper.

This paper introduces the design of FGS (fire & gas system) for LNG terminal taking Shanghai Gas Group Wuhaogou Expansion of the LNG Peak Shaving Plant Project as example.Simulation of emergency shows the importance of FGS system.