中国平板玻璃生产碳排放研究  

Investigation on CO_2 emissions from flat glass production in China

作　　者：严玉廷[1] 刘晶茹[1] 丁宁[1] 严丽[1] 

机构地区：[1]中国科学院生态环境研究中心城市与区域生态国家重点实验室,北京100085

出　　处：《环境科学学报》2017年第8期3213-3219,共7页Acta Scientiae Circumstantiae

基　　金：城市与区域生态国家重点实验室开放基金(No.KLURE2015-2-6)~~

摘　　要：平板玻璃行业是典型的高能耗、高排放行业,目前关于中国平板玻璃行业的碳排放问题还没有得到深入的研究.因此,本文调查了中国300余条主要的平板玻璃生产线,并在此基础上从范围1(工艺过程和化石燃料燃烧引起的直接排放)和范围2(净购入电力和热力在生产阶段引起的间接排放)评估了中国平板玻璃行业从2005年到2014年的CO_2排放情况.结果发现,中国平板玻璃行业CO_2排放量逐年增加,由2005年的2626.9×10~4t逐步上升到2015年的4620.5×10~4t.研究表明:能源消耗是平板玻璃行业碳排放的最主要来源,占比在80%左右,节能降耗是促进平板玻璃行业CO_2减排的主要途径;平板玻璃生产原料中碳酸盐的热分解是CO_2的主要来源之一,占总排放量的20%左右,控制平板玻璃配合料的气体率,在减少平板玻璃生产过程中的CO_2排放有很大潜力;推荐平板玻璃新建项目使用天然气并配备大型熔窑(日熔化量650 t以上)的浮法玻璃生产线,以减少CO_2排放.Flat glass industry is a large energy consumer and industrial process emitter.However,there is no in-depth investigation on its CO2 emissions.In this study,we studied more than 300 glass production lines in China and estimated CO2 emissions from 2005 to 2014 for scope 1（direct CO2 emissions from industrial process and fossil fuel combustion） and scope 2（indirect CO2 emissions from purchased electricity and heat consumption）.The total CO2 emission from flat glass industry in China rises from 2626.9×10^4 tonnes in 2005 to 4620.5×10^4 tonnes in 2014.It is concluded that energy consumption is the main factor responsible for CO2 emission from flat glass industry in China,therefore energy saving is an important way to promote CO2 reduction.Another major CO2 emission source is raw material dissociation during the production process,accounting for about 20% of total CO2 emission.Controlling gas rate of materials therefore has a great potential in reducing carbon emissions.To reduce the emission of glass production industry,we recommend to apply large capacity kiln（more than 650 t per day） and use natural gas as fuel when establishing new glass lines.

关 键 词：平板玻璃 碳排放 生命周期核算 

分 类 号：X196[环境科学与工程—环境科学]