Volatile organic compounds emission inventory of organic chemical raw material industry

He, Xiaohong; Che, Xiang; Gao, Song; Chen, Xi; Pan, Miaoting; Jiang, Minzi; Zhang, Shuwei; Jia, Haohao; Duan, Yusen

doi:10.1016/j.apr.2021.101276

Cited by 12 publications

(2 citation statements)

References 19 publications

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“…Previous studies have demonstrated that the use of individual chemicals (i.e. coatings, inks, and adhesives) significantly impact on ROG emissions (Gkatzelis et al, 2021a;Zheng et al, 2013;He et al, 2022a), and these chemicals used for printing, furniture, and shoemaking industries has seen rapid growth and widespread adoption in recent years (Gkatzelis et al, 2021a;McDonald et al, 2018;Seltzer et al, 2022;Coggon et al, 2021). Consequently, the diverse emission sources and emission factors from industrial VCP sources have contributed to large uncertainties (Mo et al, 2021;Zhong et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Emission characteristics of reactive organic gases from industrial volatile chemical products (VCPs) in China

Wang,

Yuan,

et al. 2024

Preprint

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Abstract. Volatile chemical products (VCPs) have become an important source of reactive organic gases (ROGs) in urban areas worldwide. Industrial activities can also utilize a large amount of VCPs and emit many organic gases into the atmosphere. Due to multiple sampling and measurement challenges, only a subset of ROG species is usually measured for many industrial VCP sources. This study aimed to investigate the emissions of ROGs from five industrial VCP sources in China, including shoemaking, plastic surface coating, furniture coating, printing, and ship coating industries. More comprehensive speciation of ROG emissions from these industrial VCP sources was developed by the combination of the proton transfer reaction time-of-flight mass spectrometer (PTR-ToF-MS) along with gas chromatography-mass spectrometer/flame ionization detector (GC-MS/FID). Our study identified oxygenated ROG species (OVOCs) as representative ROGs emitted from these sources, which are highly related to specific chemicals used during the industrial activities. Moreover, mass spectra similarity analysis revealed significant dissimilarities among the ROG emission sources, indicating substantial variations between different industrial VCP sources. Except for the ship coating industry utilizing solvent-borne coatings, the proportions of OVOCs range from 67 % to 96 % in total ROG emissions and 72 % to 97 % in total OH reactivity (OHR) for different industrial sources. The industrial VCP sources associated with solvent-borne coatings exhibited a higher ozone formation potential (OFP), reaching as high as 5.5 and 2.7 g O3·g-1 ROGs for ship coating and furniture coating industries, primarily due to contributions from aromatics. The fractions of the ten most abundant species in total ROG emissions, OHR, and OFP indicated a highly centralized of ROG emissions from various industrial VCP sources. Our results suggest that ROG treatment devices may have limited effectiveness for all ROGs, with treatment efficiencies ranging from -12 % to 68 %. Furthermore, we found that ROG pairs (e.g., methyl ethyl ketone (MEK) /C8 aromatics ratio) could serve as effective indicators for distinguishing industrial VCP sources, particularly for measurements in industrial areas. Our study demonstrated the importance of measuring a large number of ROGs using PTR-ToF-MS for characterizing ROG emissions from industrial VCP sources.

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Section: Introductionmentioning

confidence: 99%

Emission characteristics of reactive organic gases from industrial volatile chemical products (VCPs) in China

Wang,

Yuan,

et al. 2024

Preprint

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“…A variety of diseases, cancers, and death may occur in humans due to current ambient air toxic levels in Group I, as determined by the WHO [6,7]. Initially, benzene can be emitted from dominant sources, including motor vehicles [8], industries [9], residences [10], dry-cleanings [11], indoor dust [12], cigarette [13], chemicals [14], natural and anthropogenic [15]. Benzene emissions from household items such as decorative, wood, and veneer composite objects are associated with contact time and concentration, depending on their concentrations [16].…”

Section: Introductionmentioning

confidence: 99%

A Study on the Gaseous Benzene Removal Based on Adsorption onto the Cost-Effective and Environmentally Friendly Adsorbent

Işınkaralar

2023

Molecules

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Removal of benzene is essential for human and environmental health because it has toxic and hazardous properties at various concentrations. Theseneed to be effectively eliminated with carbon-based adsorbents. PASACs, carbon-based adsorbents obtained from using the needles of Pseudotsuga menziesii, were produced by optimized HCl- and H2SO4-impregnated approaches. Regarding physicochemical structure, the optimized PASAC23 and PASAC35 with surface areas of 657 and 581 m2/g and total pore volumes of 0.36 and 0.32 cm3/g showed ideal temperatures of 800 °C. In order to investigate and compare internal benzene removal efficiency, PASAC23 and PASAC35 were studied separately. Initial concentrations were found to range from 5 to 500 mg/m3, and between 25 and 45 °C. The removal rate of benzene by PASAC23 and PASAC35 was 97 and 94% at low concentrations, respectively. While the highest capture amount for PASAC23 and PASAC35 was found to be at 25 °C with 141 and 116 mg/g, the adsorption capacity decreased to 102 and 90 mg/g at 45 °C. The holding capacity decreased between 22.41 and 27.66% due to increasing temperatures. After five cycles of PASAC23 and PASAC35 regeneration, we found that they could remove 62.37 and 58.46% of benzene, respectively. These results confirmed that PASAC23 is a promising environmentally adsorbent for effectively removing benzene with a competitive yield.

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Cooperative and Bifunctional Adsorbent‐Catalyst Materials for In‐situ VOCs Capture‐Conversion

Mondal,

Aina,

Rownaghi

et al. 2024

ChemPlusChem

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Volatile organic compounds (VOCs) are gases that are emitted into the air from products or processes and are major components of air pollution that significantly deteriorate air pollution and seriously affect human health. Different types of metals, metal oxides, mixed‐metal oxides, polymers, activated carbons, zeolites, MOFs and mixed‐matrixed materials have been developed and used as adsorbent or catalysts for diversified VOC capture, removal, and destruction. In this comprehensive review, we first discuss the general classification of VOC removal materials and processes and outline the historical development of bifunctional and cooperative adsorbent‐catalysts for the removal of volatile organic compounds (VOCs) from air. Subsequently, particular attention is devoted to design strategies for cooperative adsorbent‐catalysts, along with detailed discussions on the latest advances on these bifunctional materials, reaction mechanisms, long‐term stability, and regeneration for VOCs removal processes. Finally, challenges and future opportunities for the environmental implementation of these bifunctional and cooperative adsorbent‐catalysts are identified and outlined with the intent of providing insightful guidance on the design and fabrication of more efficient materials and systems for VOCs removal in the future.

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Volatile organic compounds emission inventory of organic chemical raw material industry

Cited by 12 publications

References 19 publications

Emission characteristics of reactive organic gases from industrial volatile chemical products (VCPs) in China

Emission characteristics of reactive organic gases from industrial volatile chemical products (VCPs) in China

A Study on the Gaseous Benzene Removal Based on Adsorption onto the Cost-Effective and Environmentally Friendly Adsorbent

Cooperative and Bifunctional Adsorbent‐Catalyst Materials for In‐situ VOCs Capture‐Conversion

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