Process-based volatile organic compound emission inventory establishment method for the petroleum refining industry

Liu, Yeye; Han, Feng; Liu, Wei; Cui, Xiaowei; Luan, Xiaoyu; Cui, Zhaojie

doi:10.1016/j.jclepro.2020.121609

Cited by 22 publications

(14 citation statements)

References 19 publications

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“…Petrochemical industry Certain procedures in petrochemical industry have been identified as the main contributors to AVOCs emissions from the sector. For example, equipment leaks, storage tanks, and manufacturing lines were estimated to be responsible for over 90% of the total emissions (Ke et al, 2020;Liu et al, 2020;Yen and Horng, 2009). Through field measurements and in-depth analysis of different emission calculation methods, Zhang et al (2021a) suggested that procedure-based method should provide better estimate of NMVOCs emissions for petroleum industries than the commonly approach that applied a full emission factor for the whole factory.…”

Section: Power Plantmentioning

confidence: 99%

High-resolution regional emission inventory contributes to the evaluation of policy effectiveness: A case study in Jiangsu province, China

Zhang

et al. 2022

Preprint

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Abstract. China has been conducting a series of actions on air quality improvement for the past decades, and air pollutant emissions have been changing swiftly across the country. Province is an important administrative unit for air quality management, thus reliable provincial-level emission inventory for multiple years is essential for detecting the varying sources of pollution and evaluating the effectiveness of emission controls. In this study, we selected Jiangsu, one of the most developed provinces in China, and developed the high-resolution emission inventory of nine species for 2015–2019, with improved methodologies for different emission sectors, best available facility-level information on individual sources, and real-world emission measurements. Resulting from implementation of strict emission control measures, the anthropogenic emissions were estimated to have declined 53 %, 20 %, 7 %, 2 %, 10 %, 21 %, 16 %, 6 % and 18 % for SO2, NOX, CO, NMVOCs, NH3, PM10, PM2.5, BC, and OC from 2015 to 2019, respectively. Larger abatement of SO2, NOX and PM2.5 emissions were detected for the more developed southern Jiangsu. Since 2016, the ratio of biogenic volatile organic compounds (BVOCs) to anthropogenic volatile organic compounds (AVOCs) exceeded 50 % in July, indicating the importance of biogenic sources on summer O3 formation. Our estimates in annual emissions of NOX, NMVOCs, and NH3 were generally smaller than the national emission inventory MEIC, but larger for primary particles. The discrepancies between studies resulted mainly from different methods of emission estimation (e.g., the procedure-based approach for AVOCs emissions from key industries used in this work) and inconsistent information of emission source operation (e.g., the penetrations and removal efficiencies of air pollution control devices). Regarding the different periods, more reduction of SO2 emissions was found between 2015 and 2017, but NOX, AVOCs and PM2.5 between 2017 and 2019. Among the selected 13 major measures, the ultra-low emission retrofit on power sector was the most important contributor to the reduced SO2 and NOX emissions (accounting for 38 % and 43 % of the emission abatement, respectively) for 2015–2017, but its effect became very limited afterwards as the retrofit had been commonly completed by 2017. Instead, extensive management of coal-fired boilers and upgradation and renovation of non-electrical industry were the most important measures for 2017–2019, accounted collectively for 61 %, 49 % and 57 % reduction of SO2, NOX and PM2.5, respectively. Controls on key industrial sectors maintained the most effective for AVOCs reduction for the two periods, while measures on other sources (transportation and solvent replacement) became increasingly important for more recent years. Our provincial emission inventory was demonstrated to be supportive for high-resolution air quality modeling for multiple years. Through scenario setting and modeling, worsened meteorological conditions were found from 2015 to 2019 for PM2.5 and O3 pollution alleviation. However, the efforts on emission controls were identified to largely overcome the negative influence of meteorological variation. The changed anthropogenic emissions were estimated to contribute 4.3 and 5.5 μg·m-3 of PM2.5 concentration reduction for 2015–2017 and 2017–2019, respectively. While elevated O3 by 4.9 μg·m-3 for 2015–2017, the changing emissions led to 3.1 μg·m-3 of reduction for 2017–2019, partly (not fully though) offsetting the meteorology-driven growth. The analysis justified the validity of local emission control efforts on air quality improvement, and provided scientific basis to formulate air pollution prevention and control policies for other developed regions in China and worldwide.

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Section: Power Plantmentioning

confidence: 99%

High-resolution regional emission inventory contributes to the evaluation of policy effectiveness: A case study in Jiangsu province, China

Zhang

et al. 2022

Preprint

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“…They exhibit low sensor response, long response, and recovery time (Xiao et al, 2015;Cheng et al, 2019). WO 3 metal oxide is one of the most promising materials for gas sensing application due to its fascinating properties such as wide band gap (2.7 eV), excellent electron mobility and chemical stability (Chen et al, 2018;Liu et al, 2020;Shen et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

The effect of acids precipitants on the synthesis of WO3 hierarchical nanostructures for highly selective and sensitive H2S detection

Mpanza

Ogundipe²,

Ndlangamandla³

et al. 2023

Front. Sens.

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The detection and monitoring of H2S gas at high and lower concentrations is very crucial since this gas is highly toxic and can affect tissues and organs, especially in occupational environment. This work reports on the synthesis of WO3 nanostructures-based sensors for highly sensitive and selective H2S detection at low operating temperatures. These WO3 nanostructures were synthesized using pressurized hydrothermal process. Different acids from weak to strong (HNO3, H2SO4, and HCl) were employed as precipitants to form supposedly hierarchical and cube-like nanostructures of WO3. These WO3 nanostructures were characterized by XRD, SEM, TEM, XPS and BET analysis. The fabricated WO3 sensors were exposed to different target gases (CO2, H2, CH4, NH3, LPG and H2S) at different concentrations. They were found to be selective to H2S, and the WO3 precipitated by HCl otherwise referred to as WO3-HCl was found to be highly sensitive, with high response of S = 1394.04 towards 150 ppm of H2S at 125°C operating temperature. The WO3 precipitated by H2SO4 named WO3-H2SO4 showed a high response of 141.64 at 125°C operating temperature. Lastly, WO3 precipitated by HNO3 called WO3-HNO3, recorded a H2S response of 125.75 also at 125°C operating temperature. The HCl-precipitated WO3 is a promising candidate for selective detection of H2S, being the most sensitive in the series.

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“…1 shows the flow chart of the cylinder making by EME processes. Some major issues associated with cylinder making process like high emission of VOCs in the printing process, electroplating process of copper, nickel and chrome-plating and cost of effluent treatment along with adherence with strict legal compliances 10 – 12 . Therefore, efforts had been made to use an environmentally benign approach to reduce the VOCs emission and materials consumption in-cylinder making process for flexible packaging 13 .…”

Section: Introductionmentioning

confidence: 99%

Sustainable and green manufacturing of gravure printing cylinder for flexible packaging printing application

Sharma

Singh

Pandey³

et al. 2022

Sci Rep

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Rotogravure printing cylinders are engraved by electro-mechanical engraving (EME) process in India used for printing purpose. But this process has drawbacks of the emissions of hazardous gases, solid and water pollution. EME cylinders are better in cell size, depth and needed higher copper and chrome plating thickness. By laser engraving (LE) copper and chromium thickness were reduced by 75 µm and 5 µm in a cylinder by laser engraving with also a reduction in power consumption and plating time. The carbon footprints were also reduced by 227 g per cylinder with a cost-effective solution for rotogravure printing process.

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Process-based volatile organic compound emission inventory establishment method for the petroleum refining industry

Cited by 22 publications

References 19 publications

High-resolution regional emission inventory contributes to the evaluation of policy effectiveness: A case study in Jiangsu province, China

High-resolution regional emission inventory contributes to the evaluation of policy effectiveness: A case study in Jiangsu province, China

The effect of acids precipitants on the synthesis of WO3 hierarchical nanostructures for highly selective and sensitive H2S detection

Sustainable and green manufacturing of gravure printing cylinder for flexible packaging printing application

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