Energy conservation and carbon reduction potential for solid waste in China

2020 ◽  
Vol 27 (33) ◽  
pp. 42158-42167
Author(s):  
Minxi Wang ◽  
Zhi Li ◽  
Lu Chen ◽  
Ping Liu ◽  
Rui Zhang ◽  
...  
Author(s):  
Xueyi Xu ◽  
Stephen Kent ◽  
Felix Schmid

China's national strategy identifies railway electrification as one of the principal means of reducing carbon emissions and optimising the energy structure of transportation in the country. Here, the authors investigate the carbon-reduction potential of rail electrification in China and present a model to estimate the CO2 emissions under three possible future scenarios. These scenarios differ in their contribution to railway transport in China's transportation market. The authors also consider the effect of potential improvements in the country's electricity generation mix. The results demonstrate that railway electrification using the current energy generation mix can reduce carbon emissions by 8.9%. However, using a generation mix similar to that of the UK can help achieve a maximum reduction of carbon emissions of 65.4%.


2011 ◽  
Vol 39 (1) ◽  
pp. 51-65 ◽  
Author(s):  
Behzad Sodagar ◽  
Deepak Rai ◽  
Barbara Jones ◽  
Jakub Wihan ◽  
Rosi Fieldson

2013 ◽  
Vol 743-744 ◽  
pp. 301-305
Author(s):  
Guo Chao Qi ◽  
Feng Jun Shan ◽  
Qu Kai Zhang

Mineral wool is a type of important material for basic infrastructure development and national economy. It is widely used as insulation material in construction industries. Some high temperature industrial solid waste materials, such as blast furnace slag, cyclone slag and some metal slag, after composition adjusting and reheating, can be directly used to produce mineral wool. The recycle of residual heat in the hot solid wastes can decrease the cost of mineral wool and is beneficial for energy conservation, environmental protection and social sustainable development. The development and technical characteristics of mineral wool production with blast furnace slag, cyclone slag and some non-ferrous metal slag have been analyzed in this paper, and the energy conservation technique in managing high temperature solid waste has been also discussed.


2019 ◽  
Vol 38 (2019) ◽  
pp. 30-41
Author(s):  
Runsheng Xu ◽  
Jianliang Zhang ◽  
Wei Wang ◽  
Haibin Zuo ◽  
Zhengliang Xue

AbstractThe influences of coal rank, particle size, temperature and gasifier atmosphere on the gas generation of lump coals used in COREX gasifier were investigated. The results showed that an increase in gasifier temperature and a decrease in particle size hardly affected the final mass loss of lump coals but strongly enhanced the gas generation rate. When the temperature was greater than 1000 °C, a decrease in coal rank increased the gas yield but had little effect on the gas generation rate. Moreover, the promotion ability of the atmosphere for the gas generation rate of lump coal from low to high was as follows: N2, CO2, CO and H2. Considering energy conservation, to improve the gas generation rate of the gasifier, the coal rank and particle size should be decreased first, and afterwards, an increase in reduction potential of the atmosphere in gasifier is also encouraged.


2013 ◽  
Vol 21 (5) ◽  
pp. 765-779 ◽  
Author(s):  
Meng-Lei Hu ◽  
Jeou-Shyan Horng ◽  
Chih-Ching Teng ◽  
Sheng-Fang Chou

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