Premium
An important missing source of atmospheric carbonyl sulfide: Domestic coal combustion
Author(s) -
Du Qianqian,
Zhang Chenglong,
Mu Yujing,
Cheng Ye,
Zhang Yuanyuan,
Liu Chengtang,
Song Min,
Tian Di,
Liu Pengfei,
Liu Junfeng,
Xue Chaoyang,
Ye Can
Publication year - 2016
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1002/2016gl070075
Subject(s) - stove , coal , combustion , carbonyl sulfide , coal combustion products , sulfur dioxide , environmental science , environmental chemistry , sulfur , carbon monoxide , bituminous coal , sulfide , chemistry , waste management , inorganic chemistry , organic chemistry , catalysis , engineering
Carbonyl sulfide (COS), carbon monoxide (CO), and sulfur dioxide (SO 2 ) emissions generated from prevailing domestic coal stoves fueled with raw bituminous coal were studied under alternation cycles of flaming and smoldering combustion. The measurements in the laboratory and the farmer's house indicated that COS and CO emissions mainly occurred under the condition of flame extinguishment after coal loading, whereas SO 2 emissions were mainly generated through combustion with flame. The COS emission factors for the domestic stoves in the laboratory and the farmer's house were recorded as 0.57 ± 0.10 g COS kg −1 and 1.43 ± 0.32 g COS kg −1 , being approximately a factor of 50 and 125 greater than that generated from coal power plants, respectively. Based on the COS emission factors measured in this study, COS emission from only domestic coal combustion in China would be at least 30.5 ± 5.6 Gg S yr −1 which was 1 magnitude greater than the current COS estimation from the total coal combustion in China.