中文关键词挥发性有机物(VOCs)工艺过程源源成分谱人造板制药臭氧生成潜势 英文关键词volatile organic compounds (VOCs)industrial processsource profileswood-based panelpharmaceutical manufacturingozone formation potential

作者	单位	E-mail
周子航	成都市环境保护科学研究院, 成都市大气科研重点实验室, 成都 610072	gorezhou@cdaes.cn
邓也	成都市环境保护科学研究院, 成都市大气科研重点实验室, 成都 610072
吴柯颖	成都市环境保护科学研究院, 成都市大气科研重点实验室, 成都 610072
谭钦文	成都市环境保护科学研究院, 成都市大气科研重点实验室, 成都 610072
周小玲	成都市环境保护科学研究院, 成都市大气科研重点实验室, 成都 610072
宋丹林	成都市环境保护科学研究院, 成都市大气科研重点实验室, 成都 610072
黄凤霞	成都市环境保护科学研究院, 成都市大气科研重点实验室, 成都 610072
曾文號	成都市环境保护科学研究院, 成都市大气科研重点实验室, 成都 610072

中文摘要 选取成都市人造板、医药制造和化工制品等工艺过程源典型企业，通过采样瓶和SUMMA罐采样及GC-MS和国标分析方法，获取了人造板等行业各生产工艺环节的挥发性有机物（VOCs）排放组分特征.其中，人造板生产工艺分为制胶、调胶、分选和热压，医药制造分为生产车间和废水处理.结果表明，人造板和医药制造VOCs贡献组分以OVOCs为主，占VOCs总排放的50%以上.甲醛制造有组织和无组织排放组分差异较大，有组织以OVOCs为主而无组织以卤代烃为主.涂料制造VOCs排放与其原辅料相关性较高，VOCs排放组分以芳香烃和OVOCs为主.人造板各工艺环节除调胶外，最主要的VOCs组分均为甲醛，其排放占比达到50%以上.医药制造各工艺环节的首要VOCs组分均为乙醇，1，4-二噁烷、乙酸乙酯和甲苯等亦为主要组分.甲醛制造以丙酮和乙醇等组分为主.涂料制造主要以间，对-二甲苯等芳香烃为主.以臭氧生成潜势表征人造板、医药制造和化工的VOCs污染源反应活性，结果表明不同行业VOCs组分对反应活性的贡献类似，均主要以甲醛、乙醇等OVOCs和部分芳香烃等高活性组分为主.应对工艺过程源等行业分环节监管，并重点关注臭氧生成潜势较大的VOCs组分，分析行业排放特征和化学机制，从源头控制O₃生成. 英文摘要 The characteristics of volatile organic compound (VOCs) species from various production procedures of wood-based panel production and other industrial processes in Chengdu were analyzed through gas chromatography-mass spectrometry (GC-MS) and other methods specified in national standards after the emissions of typical enterprises of wood-based panel production, pharmaceutical manufacturing, chemical production and other industrial processes in Chengdu had been sampled using sampling bottles and SUMMA canisters. Generally, the process of wood-based panel production includes glue making, glue mixing, sorting, and hot pressing, whereas the process of pharmaceutical manufacturing includes workshop production and wastewater treatment. The results showed that the main contribution species of VOCs in wood-based panel production and pharmaceutical manufacturing is oxygenated VOCs (OVOCs), accounting for more than 50% of the total VOCs emitted. The species from organized and unorganized emissions of formaldehyde manufacturing differed significantly. The main species of organized emissions was OVOCs, and that of unorganized emissions was halohydrocarbons. Emissions of VOCs from coating manufacturing were strongly correlated with the raw materials, and the corresponding emission species were composed mainly of aromatics and OVOCs. Except for glue mixing, the main species of VOCs in other process procedures of wood-based panel production was formaldehyde, with emission proportion of more than 50%. The primary species of VOCs in various processes of pharmaceutical manufacturing was ethanol; however 1,4-dioxane, ethyl acetate, and toluene were also important species. Moreover, the main VOCs from formaldehyde manufacturing were composed mainly of acetone and ethanol, and those of coating manufacturing were aromatic hydrocarbons such as p-xylene. The ozone formation potential was to characterize the reactivity of pollution sources in VOCs from wood-based panel production, pharmaceutical manufacturing, and chemical production. The results showed that the species of VOCs in different industries contributed similarly to the reactivity and that these species were mainly high-activity species such as formaldehyde, ethanol, and other OVOCs as well as some aromatic hydrocarbons. Therefore, supervision and regulation of enterprises of industrial processes is required with a focus on species with relatively large ozone formation potential. In addition, it is necessary to analyze the emission characteristics and chemical mechanism of various industries and to control O₃ generation from the sources.

PDF全文下载地址:

https://www.hjkx.ac.cn/hjkx/ch/reader/create_pdf.aspx?file_no=20190912&flag=1&journal_id=hjkx&year_id=2019