Based on the MAP-CGE model,this paper simulated the impacts on the output,energy consumption and pollutant emissions of different cement production processes when implementing a low carbon cement standard in China.It ...Based on the MAP-CGE model,this paper simulated the impacts on the output,energy consumption and pollutant emissions of different cement production processes when implementing a low carbon cement standard in China.It also calculated the impacts on the marginal abatement cost and equilibrium price of the cement industry,and analyzed the co-abatement effects of different pollutants.The results showed that implementing the low carbon cement standard will be beneficial in promoting an upgrading of cement production processes,and strengthening the energy conservation and emission reduction in the cement industry.If there is no change in the existing technology,the cement industry will reduce SO2emissions by 1.17 kg and NOxemissions by 4.44 kg per ton of CO2emission reduction.Implementing low carbon cement standard can also promote NOxabatement in the cement industry.However,the cement industry will bear the abatement costs,and their equilibrium price will increase slightly.展开更多
X-ray fluorescence (XRF) analysis utilizes particle size which is resulted from milling of a material. The milling ensures uniform and fine grained powder. The finer and more uniform the particle size is, the better t...X-ray fluorescence (XRF) analysis utilizes particle size which is resulted from milling of a material. The milling ensures uniform and fine grained powder. The finer and more uniform the particle size is, the better the result and easier it is for material quality control. To ensure uniformity in particle size and finer powder, a comparative analysis was conducted with different grinding aids and pressed pellet method was used in obtaining analysis results. Pressed pellets of cement raw meal sample milled with different grinding aids (graphite, aspirin and lithium borate) were subjected to XRF. Graphite produced better particle size uniformity with a corresponding standard deviation that made quality control of raw meal easier and better than aspirin and lithium borate.展开更多
基金supported by the Fundamental Research Funds for the Central Universitiesthe Research Funds of Renmin University of China(No.14XNJ008)
文摘Based on the MAP-CGE model,this paper simulated the impacts on the output,energy consumption and pollutant emissions of different cement production processes when implementing a low carbon cement standard in China.It also calculated the impacts on the marginal abatement cost and equilibrium price of the cement industry,and analyzed the co-abatement effects of different pollutants.The results showed that implementing the low carbon cement standard will be beneficial in promoting an upgrading of cement production processes,and strengthening the energy conservation and emission reduction in the cement industry.If there is no change in the existing technology,the cement industry will reduce SO2emissions by 1.17 kg and NOxemissions by 4.44 kg per ton of CO2emission reduction.Implementing low carbon cement standard can also promote NOxabatement in the cement industry.However,the cement industry will bear the abatement costs,and their equilibrium price will increase slightly.
文摘X-ray fluorescence (XRF) analysis utilizes particle size which is resulted from milling of a material. The milling ensures uniform and fine grained powder. The finer and more uniform the particle size is, the better the result and easier it is for material quality control. To ensure uniformity in particle size and finer powder, a comparative analysis was conducted with different grinding aids and pressed pellet method was used in obtaining analysis results. Pressed pellets of cement raw meal sample milled with different grinding aids (graphite, aspirin and lithium borate) were subjected to XRF. Graphite produced better particle size uniformity with a corresponding standard deviation that made quality control of raw meal easier and better than aspirin and lithium borate.
