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This content will become publicly available on February 20, 2019

Title: Reducing energy consumption and carbon emissions of magnesia refractory products: A life-cycle perspective

China is the largest producer of magnesia refractory materials and products in the world, resulting in significant energy consumption and carbon emissions. This paper analyzes measures to reduce both the energy consumption and carbon emissions in the production phase and use phase, providing a theoretical basis for a sustainable magnesia refractory industry. Results show that the total carbon emissions of carbon-containing magnesia bricks produced with fused magnesia are much higher than those of other products, and the total carbon emissions of both general magnesia brick and magnesia-carbon spray are lower than those of other products. Carbon emissions of magnesia products are mainly concentrated in the production process of magnesia. Manufacturers should select materials with lower environmental impacts and emphasize saving energy and reducing carbon emissions in the magnesia production process. Through scenario analysis we found that CO 2 capture is an effective measure to reduce carbon emissions compared with just improving energy consumption. However, a robust CO 2 market does not currently exist. Policy makers should plan on integrating CO 2 capture in the magnesia industry into a regional CO 2 capture and storage development planning in the long term. In particular, magnesia production is concentrated in a single geographicalmore » area which would and thus could take advantage of significant scale effects. Finally, in the use phase, extending the service lifetime reduces carbon emissions over the product lifetime, thus users should attempt to extend the service lifetime of a furnace as a whole. However, results show that it is not advisable to add a large number of repair refractories to extend the lifetime of existing furnaces.« less
Authors:
 [1] ;  [2] ;  [3]
  1. Northeastern Univ., Shenyang (China). School of Metallurgy. Liaoning Province Key Lab. of Metallurgical Resources Recycling Science; Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Northeastern Univ., Shenyang (China). School of Metallurgy. Liaoning Province Key Lab. of Metallurgical Resources Recycling Science
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Report Number(s):
LA-UR-17-27933
Journal ID: ISSN 0959-6526
Grant/Contract Number:
AC52-06NA25396; 41601609
Type:
Accepted Manuscript
Journal Name:
Journal of Cleaner Production
Additional Journal Information:
Journal Volume: 182; Journal ID: ISSN 0959-6526
Publisher:
Elsevier
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Northeastern Univ., Shenyang (China)
Sponsoring Org:
USDOE; National Natural Science Foundation of China (NNSFC); China Scholarship Council
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 54 ENVIRONMENTAL SCIENCES; magnesia refractory products; life-cycle assessment; scenario analysis; carbon emissions; reduction measures
OSTI Identifier:
1435522