Exergy-based resource consumption analysis of cement clinker production using natural mineral and using calcium carbide sludge (CCS) as raw material in China

2020 ◽  
Vol 25 (4) ◽  
pp. 667-677 ◽  
Author(s):  
Boxue Sun ◽  
Yu Liu ◽  
Zuoren Nie ◽  
Feng Gao ◽  
Zhihong Wang ◽  
...  
Keyword(s):  
Calcium Carbide ◽  
Resource Consumption ◽  
Raw Material ◽  
Cement Clinker ◽  
Natural Mineral ◽  
Clinker Production

Analysis on the CO2 Emission of Calcium Carbide Sludge as Secondary Raw Material in Cement Clinker Production

2013 ◽  
Vol 743-744 ◽  
pp. 516-522 ◽  
Author(s):  
Fei Fei Shi ◽  
Zhi Hong Wang ◽  
Ming Hui Fang ◽  
Bo Xue Sun ◽  
Ming Nan Zhao ◽  
...  
Keyword(s):  
Life Cycle ◽  
Emission Reduction ◽  
Calcium Carbide ◽  
Cement Industry ◽  
Raw Material ◽  
Cement Clinker ◽  
The World ◽  
Secondary Raw Material ◽  
Global Carbon ◽  
Clinker Production

With the development of economy, China has become one of the largest cement producers in the world. However, cement industry is a main contributor of global carbon emissions. Substituting calcium carbide sludge for limestone is an effective method for CO2 emission reduction in cement industry and has developed rapidly in recent years in China. The purpose of this study is to determine the life cycle CO2 emission of cement clinker produced with calcium carbide sludge as secondary raw material. The results show that compared with general cement clinker, the life cycle CO2 emission intensity of cement clinker produced with calcium carbide sludge will be decreased by 39.1% when substitution rate is 80%. And the CO2 emission results from the procedure of cement clinker production accounts for 85.7% of the total emission, in this stage, the CO2 emission declined by 42.2%.

Addition of large amount of municipal sewage sludge as raw material in cement clinker production

2017 ◽  
Vol 24 (36) ◽  
pp. 27862-27869 ◽  
Author(s):  
Minrui Huang ◽  
Huajun Feng ◽  
Na Li ◽  
Dongsheng Shen ◽  
Yuyang Zhou ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Raw Material ◽  
Cement Clinker ◽  
Municipal Sewage ◽  
Municipal Sewage Sludge ◽  
Clinker Production

Study Formation Process of Cement Clinker Minerals by Using Calcium Carbide Slag as Raw Material

2013 ◽  
Vol 389 ◽  
pp. 341-345 ◽  
Author(s):  
Ya Li Wang ◽  
Shi Jie Dong ◽  
Lin Lin Liu ◽  
Su Ping Cui ◽  
Hai Bo Xu
Keyword(s):  
Mineral Composition ◽  
Formation Process ◽  
Phase Structure ◽  
Raw Materials ◽  
Calcium Carbide ◽  
Industrial Wastes ◽  
Raw Material ◽  
Cement Clinker ◽  
Mineral Phase ◽  
Carbide Slag

Calcium carbide Slag is one kind of industrial wastes from CaC2 hydrolysis reaction that will cause land pollution. In the research, calcium carbide Slag used as a substitute for limestone to produce cement clinker, which with a high portion of CaO content and then an excellent calcium containing raw material. As a kind of industrial wastes, the properties of Calcium carbide slag differentiate from that of natural limestone. The formation process of clinker minerals was studied by means of XRD. The results indicated that clinker minerals formation is similar to that from use of limestone. The generated clinker has a rational mineral composition and well developed mineral phase structure. But, there are many differences in decomposition temperatures between the calcium containing raw materials. Therefore, the carbide slag can be used as a substitute of limestone raw material to produce cement clinker.

scholarly journals Utilization of Iron Ore Tailings as Raw Material for Portland Cement Clinker Production

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Li Luo ◽  
Yimin Zhang ◽  
Shenxu Bao ◽  
Tiejun Chen
Keyword(s):  
Portland Cement ◽  
Iron Ore ◽  
Mechanical Performance ◽  
Mineralogical Composition ◽  
Cement Industry ◽  
Raw Material ◽  
Cement Clinker ◽  
Iron Ore Tailings ◽  
Portland Cement Clinker ◽  
Clinker Production

The cement industry has for some time been seeking alternative raw material for the Portland cement clinker production. The aim of this research was to investigate the possibility of utilizing iron ore tailings (IOT) to replace clay as alumina-silicate raw material for the production of Portland cement clinker. For this purpose, two kinds of clinkers were prepared: one was prepared by IOT; the other was prepared by clay as a reference. The reactivity and burnability of raw meal, mineralogical composition and physical properties of clinker, and hydration characteristic of cement were studied by burnability analysis, differential thermal analysis, X-ray diffraction, and hydration analysis. The results showed that the raw meal containing IOT had higher reactivity and burnability than the raw meal containing clay, and the use of IOT did not affect the formation of characteristic mineralogical phases of Portland cement clinker. Furthermore, the physical and mechanical performance of two cement clinkers were similar. In addition, the use of IOT was found to improve the grindability of clinker and lower the hydration heat of Portland cement. These findings suggest that IOT can replace the clay as alumina-silicate raw material for the preparation of Portland cement clinker.

Co-processing of Grinding Sludge as Alternative Raw Material in Portland Cement Clinker Production

2010 ◽  
Vol 10 (15) ◽  
pp. 1525-1535 ◽  
Author(s):  
T. Punmathari ◽  
M. Rachakornk ◽  
A. Imyim ◽  
M. Wecharatan
Keyword(s):  
Portland Cement ◽  
Raw Material ◽  
Cement Clinker ◽  
Portland Cement Clinker ◽  
Clinker Production

Using Calcium Carbide Slag as One of Calcium-Containing Raw Materials to Produce Cement Clinker

2013 ◽  
Vol 743-744 ◽  
pp. 171-174 ◽  
Author(s):  
Ya Li Wang ◽  
Shi Jie Dong ◽  
Lin Lin Liu ◽  
Su Ping Cui
Keyword(s):  
Raw Materials ◽  
Calcium Carbide ◽  
Decomposition Temperature ◽  
Industrial Wastes ◽  
Raw Material ◽  
Cement Clinker ◽  
Petrographic Analysis ◽  
Chemical Compositions ◽  
Phase Constituent ◽  
Carbide Slag

Calcium carbide Slag is from CaC2 hydrolysis reaction and will do harm to land and make pollution. Calcium carbide slag can be a substitute for limestone to produce clinker with a high portion of CaO as an excellent calcium raw material. As a kind of industrial wastes, the properties of calcium carbide slag differentiate from that of natural limestone. In the present investigation, the modern analysis methods of XRF, XRD, DTA/TG, petrographic analysis were used to compare carbide slag and limestone, and the results showed that the main chemical compositions of the calcium carbide slag were basically the same with that of natural limestone. Comparing with limestone materials, calcium carbide slag had a higher content of CaO, and the main mineral phase constituent of limestone was CaCO3, whereas the main mineral of calcium carbide slag was Ca (OH)2 with a lower decomposition temperature. It has been found that under the same temperature the amount of C3S in the clinker of calcium carbide slag batching was slightly less than that of limestone batching.

Economic and Environmental Assessment of Redmud as Aggregate in Cement Clinker Production

2011 ◽  
Vol 90-93 ◽  
pp. 3254-3257
Author(s):  
Jing Min Hong ◽  
Ling Wang ◽  
Jing Lan Hong
Keyword(s):  
Raw Materials ◽  
Raw Material ◽  
Cement Clinker ◽  
Coal Production ◽  
Dominant Contribution ◽  
Environment Impact ◽  
Cement Production ◽  
Material Efficiency ◽  
Transport Distance ◽  
Clinker Production

A cost combined life cycle assessment was carried out to estimate the economic and environmental impact of redmud as aggregate in cement production. Results showed that the raw materials, transport, electricity and coal had the highest contribution to overall cost, while coal production and direct emissions represented the dominant contribution to overall environment impact. Improving energy and raw material efficiency and minimizing raw materials transport distance are the efficient way to minimize overall environmental and economic impacts.

Life Cycle Assessment of Cement Clinker Production Using Coal Gangue as Alternative Raw Material and Fuel

2015 ◽  
Vol 814 ◽  
pp. 435-440 ◽  
Author(s):  
Jia Ping Cui ◽  
Yu Liu ◽  
Zhi Hong Wang ◽  
Xian Zheng Gong ◽  
Feng Gao ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Portland Cement ◽  
Coal Gangue ◽  
Raw Material ◽  
Cement Clinker ◽  
Optimal Dosage ◽  
Portland Cement Clinker ◽  
Almost All ◽  
Clinker Production

Life cycle assessment (LCA) was carried out to quantify and analyze the environmental impact and benefit caused by the utilization of coal gangue as alternative raw material and fuel in cement clinker production. The optimal dosage of coal gangue was determined by comparing among different mixing amount scenarios and Portland cement clinker (clinker without adding any waste) considering the phases of coal gangue disposal, transportation, and raw meal grinding and clinker calcination. The results showed that: 1) After adding coal gangue to the raw meal, almost all the considered environmental impacts of cement clinker including human toxicity potential, photochemical smog potential, especially abiotic depletion potential decreased significantly. However, global warming potential and acidification potential increased slightly in comparison with Portland cement clinker. 2) Compared with the Portland cement clinker, the single environmental indicator reduced after adding coal gangue and the indicator decreased gradually with the dosage increasing.

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