Canadian Journal of Chemical Engineering最新文献

{"title":"Stability assessment of PTB7-Th and a quinoxaline-based polymer in both organic thin film transistors and in organic photovoltaic devices","authors":"Audrey Laventure,&nbsp;Samantha Brixi,&nbsp;Gregory C. Welch,&nbsp;Benoît H. Lessard","doi":"10.1002/cjce.25464","DOIUrl":"10.1002/cjce.25464","url":null,"abstract":"<p>Herein, we perform a stability assessment of two conjugated polymers that are conventionally used as electron donor polymers in the active layer of organic photovoltaic (OPV). More specifically, the impact of thermal annealing, a post-treatment commonly applied in the OPV community, is evaluated in terms of device performance and stability. The two polymers are PTB7-Th and QX1, and they are respectively blended with a non-fullerene electron acceptor, herein a derivative of N-annulated perylene diimide, that is, tPDI₂N-EH. These blends are targeted for their relatively high power conversion efficiency in outdoor conditions, but also for their potential as efficient active layer in low-intensity (indoor) conditions—while these blends have been reported, no study on the impact of thermal annealing on their stability has been performed yet. The performance stability of these devices, tracked via the open circuit voltage, the short-circuit current, the fill factor, and the power conversion efficiency metrics, were evaluated each day for 2 weeks and correlated to an evaluation of the microstructure of the active layer, evaluated using atomic force microscopy and UV–visible absorbance spectroscopy. Finally, transistors were prepared using only the two electron donor polymers, PTB7-Th and QX1, to assess if some correlations could be made between the behaviour of the OPV devices and that of the electronic charge mobilities. Results contribute to identify which molecular structures and which post-treatments are ideal to promote the stability of the active layers in the context of OPV devices.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"102 12","pages":"4129-4136"},"PeriodicalIF":1.6,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.25464","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142195298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrating process safety management into Canadian wood pellet facilities that generate combustible wood dust","authors":"Kayleigh Rayner Brown,&nbsp;Bill Laturnus,&nbsp;Gordon Murray,&nbsp;Fahimeh Yazdanpanah,&nbsp;Chris Cloney,&nbsp;Paul Amyotte","doi":"10.1002/cjce.25462","DOIUrl":"10.1002/cjce.25462","url":null,"abstract":"<p>Wood pellets, which are manufactured from sawmill and forest residues, are sold in bulk for biomass power generation or in bags for residential heating. Wood pellet production involves combustible dust, which presents the risk of fires and explosions. Process safety management (PSM) is a framework for preventing and mitigating process-related incidents. While PSM has historically been integrated within the chemical process industries, there is a need to systematically manage process-related hazards in other sectors, including wood pellet and wood product manufacturing. However, there is a need to identify an approach to PSM implementation that is reasonable and achievable based on the relative complexity of the production process, as well as onsite resources. The scope of this project was to develop an integration tool for wood pellet production to serve as the foundation for a long-term strategy and implementation plan led by industry. This research resulted in a PSM integration tool consisting of a PSM survey for gap analysis, self-assessment worksheets that include numerous PSM best practices, factsheets, and an implementation strategy. Using the CSA Z767 <i>Process Safety Management</i> standard as the basis, the research included the development of a phased approach to integrating PSM elements to help improve feasibility. The selection of PSM element phases was informed by surveys of operations and subject matter experts. This research recognizes that, while PSM is currently mostly voluntary in Canada, some organizations have adopted the CSA Z767 standard into regulations and proactively implementing a PSM framework will position companies well should regulations change.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"102 12","pages":"4085-4103"},"PeriodicalIF":1.6,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.25462","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142195302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perspectives on 40-year careers—University of Calgary Chemical & Petroleum Engineering graduating class of 1983","authors":"Robert E. Wichert,&nbsp;Anil K. Mehrotra,&nbsp;Gregory S. Patience","doi":"10.1002/cjce.25468","DOIUrl":"10.1002/cjce.25468","url":null,"abstract":"<p>Only a few of the students who graduated from Chemical &amp; Petroleum Engineering at the University of Calgary found jobs in 1983 because of a severe recession and the National Energy Program artifically deflating the oil price. Despite the slow start to their careers, the graduates have made substantial contributions to industry, government agencies, and academia. They worked on over 60 projects in more than 40 countries, many of which were valued in the billions of dollars (excluding projects in Canada). Because of the volatility in the petroleum industry, the graduates often moved from one company to another: 6 individuals worked for 10 or more companies, while only 2 spent their entire career at a single company. In 1981, we were told that the half-life of an engineering career was 5 years, but while many did take up senior management positions and business roles, most remained very close to the engineering profession throughout their careers. Here, we summarize the career paths in broad terms, like how frequently graduates changed jobs, how much time they averaged in each company, and mention the role of education in their work. Of the 60 students who graduated in 1983, this perspective article excludes seven engineers who passed away prematurely, and another seven who could not be reached.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"102 11","pages":"3702-3710"},"PeriodicalIF":1.6,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142195301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalytic pyrolysis of pine needles: Role of zeolite structure and SiO2/Al2O3 ratio on bio-oil yield and product distribution","authors":"Omvesh Yadav,&nbsp;Meenu Jindal,&nbsp;Richa Bhatt,&nbsp;Akul Agarwal,&nbsp;Bhaskar Thallada,&nbsp;Venkata Chandra Sekhar Palla","doi":"10.1002/cjce.25453","DOIUrl":"10.1002/cjce.25453","url":null,"abstract":"<p>Renewable and sustainable energy production has gained significant attention to meet sustainable development goals (SDGs). Pine needles, an abundant typical forestry residue, can be used as a renewable biomass source for sustainable energy production. Pyrolysis is a well-established and commercialized technique for the thermochemical valorization of lignocellulosic biomass. The present work focuses on improving the bio-oil yield by introducing SiO₂-Al₂O₃-based catalysts, including different zeolites and SiO₂-Al₂O₃ materials with varying SiO₂-Al₂O₃ ratios, during the pyrolysis. Bio-oil yield increased from 45.2 wt.% to 47.2 wt.% with the introduction of SiO₂-Al₂O₃ catalysts and increased to 51.2 wt.% and 50.6 wt.% with HZSM-5 and Y-zeolite, respectively, and decreased to 40.0 wt.% with β-zeolite catalyst. The pyrolysis experiments of physically mixed biomass and catalyst were carried out in a fixed-bed down-flow reactor. Various process parameters such as temperature, retention time, and catalyst-to-biomass ratio were examined to evaluate their effect on product yield. The catalyst's introduction slightly decreased phenolic compound content, enhancing carbonyl and hydrocarbon production. Maximum improvement in bio-oil yield by 6 wt.% was achieved using an H-ZSM-5 catalyst at 450°C temperature and 30 min residence time with a catalyst-to-biomass ratio of 1:4.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"102 11","pages":"3734-3743"},"PeriodicalIF":1.6,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142195341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of viscous dissipation, temperature dependent thermal conductivity, and local thermal non-equilibrium on the heat transfer in a porous channel to Casson fluid","authors":"Rajvinder Kaur,&nbsp;Sapna Sharma,&nbsp;Avinash Chandra","doi":"10.1002/cjce.25459","DOIUrl":"10.1002/cjce.25459","url":null,"abstract":"<p>The current paper deals with viscous dissipation effects in a permeable (or porous) channel filled with non-Newtonian Casson fluid by considering the local thermal non-equilibrium (LTNE) model. The dependency of the effective thermal conductivities of the solid and fluid phases on the respective temperatures has been studied along with the spatially varying Biot number. The Brinkman number <span></span><math>\u0000 <mrow>\u0000 <mfenced>\u0000 <mi>Br</mi>\u0000 </mfenced>\u0000 <mo>,</mo>\u0000 </mrow></math> Casson fluid parameter <span></span><math>\u0000 <mrow>\u0000 <mfenced>\u0000 <mi>γ</mi>\u0000 </mfenced>\u0000 </mrow></math>, thermal conductivity variation parameter <span></span><math>\u0000 <mrow>\u0000 <mfenced>\u0000 <mi>δ</mi>\u0000 </mfenced>\u0000 </mrow></math>, porosity <span></span><math>\u0000 <mrow>\u0000 <mfenced>\u0000 <mi>ϵ</mi>\u0000 </mfenced>\u0000 <mo>,</mo>\u0000 </mrow></math> Darcy number <span></span><math>\u0000 <mrow>\u0000 <mfenced>\u0000 <mi>Da</mi>\u0000 </mfenced>\u0000 </mrow></math>, and the ratio of fluid and solid phase thermal conductivities <span></span><math>\u0000 <mrow>\u0000 <mfenced>\u0000 <mrow>\u0000 <msub>\u0000 <mi>k</mi>\u0000 <mi>r</mi>\u0000 </msub>\u0000 <mo>=</mo>\u0000 <mfrac>\u0000 <msub>\u0000 <mi>k</mi>\u0000 <mi>f</mi>\u0000 </msub>\u0000 <msub>\u0000 <mi>k</mi>\u0000 <mi>s</mi>\u0000 </msub>\u0000 </mfrac>\u0000 </mrow>\u0000 </mfenced>\u0000 </mrow></math> are the main governing parameters. The Darcy–Brinkman model is employed to govern the fluid flow in permeable media and the velocity profile has been obtained analytically. Moreover, the energy equations for both phases along with suitable boundary conditions are derived and solved with the fourth order boundary value solver. The findings of the current study depict that the Nusselt number increases with the increment in Casson fluid parameter and decreases with the increment in Brinkman number and thermal conductivity variation parameter. Overall, the heat transmission between the solid and fluid phases increases with the decrement in Brinkman number and thermal conductivity variation parameter. On the other hand, the heat transmission between both the phases magnifies by increasing the value of Casson fluid parameter.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"102 11","pages":"3744-3755"},"PeriodicalIF":1.6,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142195342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Issue Highlights","authors":"","doi":"10.1002/cjce.24997","DOIUrl":"10.1002/cjce.24997","url":null,"abstract":"","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"102 9","pages":"2963"},"PeriodicalIF":1.6,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141931607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Forced convection heat transfer from confined circular/semi-circular heaters and coolers with various orientations","authors":"Rajvinder Kaur,&nbsp;Sapna Sharma,&nbsp;Avinash Chandra","doi":"10.1002/cjce.25439","DOIUrl":"10.1002/cjce.25439","url":null,"abstract":"&lt;p&gt;The combined implementation of porous medium and hybrid nanofluid with heaters and coolers can be an effective technique to improve the efficiency of several types of electric equipment. In this regard, the present study has been conducted to analyze the forced convection heat transfer of &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;Al&lt;/mi&gt;\u0000 &lt;mn&gt;2&lt;/mn&gt;\u0000 &lt;/msub&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;O&lt;/mi&gt;\u0000 &lt;mn&gt;3&lt;/mn&gt;\u0000 &lt;/msub&gt;\u0000 &lt;mo&gt;-&lt;/mo&gt;\u0000 &lt;mi&gt;CuO&lt;/mi&gt;\u0000 &lt;/mrow&gt;&lt;/math&gt; water-based hybrid nanofluid in porous channel with pairs of heaters and coolers of various shapes. The circular and semi-circular heaters and coolers with distinct orientations are considered. The Peclet number &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mfenced&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mn&gt;25&lt;/mn&gt;\u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 &lt;mi&gt;Pe&lt;/mi&gt;\u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 &lt;mn&gt;200&lt;/mn&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/mfenced&gt;\u0000 &lt;/mrow&gt;&lt;/math&gt;, Darcy number &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mfenced&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msup&gt;\u0000 &lt;mn&gt;10&lt;/mn&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mo&gt;−&lt;/mo&gt;\u0000 &lt;mn&gt;6&lt;/mn&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msup&gt;\u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 &lt;mi&gt;Da&lt;/mi&gt;\u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 &lt;msup&gt;\u0000 &lt;mn&gt;10&lt;/mn&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mo&gt;−&lt;/mo&gt;\u0000 &lt;mn&gt;1&lt;/mn&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msup&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/mfenced&gt;\u0000 &lt;/mrow&gt;&lt;/math&gt;, porosity &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mfenced&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mn&gt;0.1&lt;/mn&gt;\u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 &lt;mi&gt;ε&lt;/mi&gt;\u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 &lt;mn&gt;0.9&lt;/mn&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/mfenced&gt;\u0000 &lt;/mrow&gt;&lt;/math&gt;, and volume fraction of hybrid nanoparticles &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mfenced&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mn&gt;0.02&lt;/mn&gt;\u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 &lt;mi&gt;ϕ&lt;/mi&gt;\u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 &lt;mn&gt;0.08&lt;/mn&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/mfenced&gt;\u0000 &lt;/mrow&gt;&lt;/math&gt; are chosen as the governing parameters. The governing equations are solved by using the finite element method based commercial software COMSOL Multiphysics. The acquired results exhibit that the heat transfer from heaters and coolers is enhanced by decreasing &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mi&gt;ε&lt;/mi&gt;\u0000 &lt;/mrow&gt;&lt;/math&gt; and &lt;span&gt;&lt;/span&gt;&lt;ma","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"102 11","pages":"3756-3775"},"PeriodicalIF":1.6,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141865577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing delignification and saccharification process for sawdust processing using a central composite design","authors":"Priya Yadav,&nbsp;Julie Kring,&nbsp;Parag R. Gogate","doi":"10.1002/cjce.25434","DOIUrl":"10.1002/cjce.25434","url":null,"abstract":"<p>Lignocellulosic mass consists of cellulose, hemicelluloses, and lignin. Although biomass promises to be efficiently used for biofuel production and many other value-added products, lignin present in lignocellulosic biomass affects the hydrolysis of cellulose and hemicelluloses, making it necessary to develop techniques that provide better lignin removal efficiency and high cellulose hydrolysability. The current work aims to maximize lignin removal in sawdust and develop an understanding of the hydrolysis of pretreated biomass for sugar production. Different parameters such as solvent to solid ratio, temperature, and reaction time have been considered based on the design of experiment to understand the effect on the delignification and saccharification processes. After treating sawdust for 1.5 h, it was observed that a maximum of 85% lignin was removed at a temperature of 131°C and solid loading of 16 g. Subsequent hydrolysis of delignified sawdust at 131°C temperature, solvent to solid ratio 15, and 0.5 h resulted in a maximum reducing sugar production of 26.82 mg/mL. The study elucidated the optimum conditions for the effective processing of sawdust in terms of delignification and saccharification, leading to maximum benefits in lignin removal and sugar production.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"102 11","pages":"3723-3733"},"PeriodicalIF":1.6,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141872898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Printing organic-field effect transistors from semiconducting polymers and branched polyethylene","authors":"Gage T. Mason,&nbsp;Daniella Skaf,&nbsp;Anindya L. Roy,&nbsp;Rahaf Nafez Hussein,&nbsp;Tiago Carneiro Gomes,&nbsp;Eric Landry,&nbsp;Peng Xiang,&nbsp;Konrad Walus,&nbsp;Tricia Breen Carmichael,&nbsp;Simon Rondeau-Gagné","doi":"10.1002/cjce.25426","DOIUrl":"10.1002/cjce.25426","url":null,"abstract":"<p>Organic electroactive materials, particularly semiconducting polymers, are at the forefront of emerging organic electronics. Among the plethora of unique features, the possibility to formulate inks out of these materials is particularly promising for the large-scale manufacturing of electronics at lower cost on a variety of soft substrates. While solution deposition of semiconducting materials is promising for developing printed electronics, the environmental footprint of the materials and related devices needs to be considered to achieve sustainable manufacturing. Towards the development of greener printed electronics, this work investigates the utilization of a non-toxic, environmentally-friendly solvent, namely branched polyethylene (BPE), to formulate semiconducting inks. Focusing on a diketopyrrolopyrrole-based (DPP) semiconducting polymer, shellac as dielectric, and BPE as the solvent, solutions were prepared in different concentrations and their rheological properties were characterized. Then, printing on polyethylene terephthalate (PET) substrates using two different techniques was performed to fabricate organic field-effect transistors (OFETs). Both printing techniques yielded OFETs with good performance and device characteristics, averaging approximately 10⁻² and 10⁻⁴ cm² V⁻¹ s⁻¹, respectively, for slot-die coating and direct-ink writing deposition. Notably, despite some difference in threshold voltages, OFETs produced via slot-die coating and direct-ink writing showed comparable charge mobilities to previously reported OFETs prepared from similar materials, particularly those prepared on silicon dioxide wafers. Overall, this work confirms the suitability of BPE to formulate semiconducting inks to develop printed electronics in a greener manner. The printing methodology developed in this work also open new avenues for the design of functional printed electronics and related technologies.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"102 12","pages":"4166-4174"},"PeriodicalIF":1.6,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.25426","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141777191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A holistic approach for assessing occupational health risk due to fugitive emissions in petrochemical processes: Inherent health hazard level index (IHHLI)","authors":"Yousef A. Alhamdani,&nbsp;Mimi H. Hassim,&nbsp;Salim M. Shaik","doi":"10.1002/cjce.25404","DOIUrl":"10.1002/cjce.25404","url":null,"abstract":"<p>Fugitive emissions from petrochemical facilities have become a major concern due to their impact on plant productivity, the environment, and health. In regard to health, petrochemical workers are at higher occupational health (OH) risk due to their continuous exposure to these harmful emissions. Inherent OH and safety indexes are the most common methods used for assessing OH risk due to fugitive emissions. These methods usually focus on the sources of health hazards, such as chemical substances, process conditions, and process equipment. Therefore, these methods are considered good for measuring the severity of the OH risk. However, based on the source, pathway, receptor (SPR) model, the OH risk due to fugitive emissions is also dependent on the pathway and receptor, where leak and exposure hazards may take place, respectively. For a holistic OH risk assessment, these hazards need to be considered. This was achieved by developing an OH risk assessment methodology that provides an effective assessment that takes into consideration hazards at the source, pathway, and receptor. This paper focuses on the source part of the SPR model, while the pathway and receptor parts will be covered in future publications. This paper presents an index-based method named the inherent health hazard level index (IHHLI) developed for evaluating the severity of the fugitive emission-induced OH risk. The IHHLI is developed by an expert-based selection of the most common and relevant health hazard indicators published in the literature. Based on industry testing, the IHHLI can provide a reliable OH hazard evaluation.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"102 11","pages":"3676-3691"},"PeriodicalIF":1.6,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141777190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}