Adsorptive removal of recalcitrant organic compounds of compost leachate by epichlorohydrin cross‐linked cyclodextrin copolymer
Wiley Online Library » The Canadian Journal of Chemical Engineering
by Ziba Afsar Sangari, Javad Sayyad Amin, Mahmoud Farrokhi, Alireza Pendashteh, Ali Ayati, Amin Reza Rajabzadeh, Sohrab Zendehboudi
1w ago
Abstract Hazardous materials in compost leachate pose a threat to the environment, and its treatment has become a concern in recent years. The adsorption process is a highly effective method that is used for treating these contaminants. This research pioneered the application of cyclodextrin-epichlorohydrin (ECP) copolymer for chemical oxygen demand (COD) removal in compost leachate treatment. It offers a practical and effective approach to addressing environmental concerns associated with COD, with an extremely high adsorption capacity of 11,246 mg/g. Fourier transform infrared (FTIR), x-ray ..read more
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Modified fractional order PID structure for non‐integer model bioreactor control
Wiley Online Library » The Canadian Journal of Chemical Engineering
by Parmanand Maurya, Nilanjan Paul, Durga Prasad, Ram Sharan Singh
1w ago
Abstract Temperature control for fermentation is crucial as it directly affects microorganism growth, productivity, and metabolic activity. This work proposes a modified fractional order proportional-integral-derivative (FOPID-DF) controller that incorporates the system model in the control loop configuration utilizing a differential filter for precise temperature control within a narrow operating range. PID, fractional order PID (FOPID), modified fractional order PID (MFOPID), and fractional order internal model control (IMC) controllers were also designed for comparative analysis. The s ..read more
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A review on applications of fine particles integrated with fluidization technologies
Wiley Online Library » The Canadian Journal of Chemical Engineering
by Yue Song, Yue Yuan, Jesse Zhu
1w ago
Abstract Fine particles possess remarkable characteristics including extensive surface-to-weight ratios and diverse morphologies. Consequently, through the use of fluidization techniques, they have become favoured in various industrial processes, especially with continuous production. This review paper offers a comprehensive exploration of the integration of fine particle applications with fluidization technologies, with a specific focus on the Geldart Group C particles sized <25–40 μm. Although there are challenges with processing fine particles such as the strong cohesion in fluidized bed ..read more
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Flow coupling analysis and evaluation of different working conditions for crude oil storage tanks under dynamic heating
Wiley Online Library » The Canadian Journal of Chemical Engineering
by Yang Li, Zhuo Liang, Hongwei Chen, Yue Xiong, Chi Xu, Haoyu Su
1w ago
Abstract During periods of sharp demand increase, there is a need for significant expansion in the fundamental requirements for crude oil storage. As demand rapidly escalates, the prerequisites for crude oil storage necessitate substantial expansion. To scientifically and effectively reduce energy waste associated with heating oil, it is essential to study the heating methods and efficiency of crude oil storage tanks. Considering environmental temperature, solar radiation, and the physical properties of the oil, we have proposed a new heating model to elucidate the dynamic heating process of l ..read more
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Optimization of simulation model adaptability and CFD of particles of Geldart‐B in a gas–solid fluidized bed for silicone monomer synthesis
Wiley Online Library » The Canadian Journal of Chemical Engineering
by Boqiang Fu, Guoqiang Lv, Yongsheng Ren, Wenhui Ma, Guangkai Gu
1w ago
Abstract The flow characteristics of gas–solid in fluidized bed reactors constrain or promote the reaction process by affecting gas–solid mixing homogeneity, heat transfer timeliness, and fluidization stability. To improve the production efficiency of silicone monomers, this work shows a comparative analysis of the effects of geometric modelling in different dimensions, flow state, and the interphase exchange coefficient on the characteristics of particles of Geldart-B in a gas–solid fluidized bed for silicone monomer synthesis based on two-fluid models (TFM). The results of different dimensio ..read more
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Table of Contents
Wiley Online Library » The Canadian Journal of Chemical Engineering
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1w ago
The Canadian Journal of Chemical Engineering, Volume 102, Issue 5, Page 1685-1686, May 2024 ..read more
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Issue Highlights
Wiley Online Library » The Canadian Journal of Chemical Engineering
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1w ago
The Canadian Journal of Chemical Engineering, Volume 102, Issue 5, Page 1687-1687, May 2024 ..read more
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Acid‐free and highly efficient one‐step nitration of naphthalene with NO2 promoted by O2‐Ac2O in Fe‐ and Cu‐modified S2O82−/ZrO2 catalyst to 1,5‐dinitronaphthalene under mild conditions
Wiley Online Library » The Canadian Journal of Chemical Engineering
by Jiaqi Yan, Xiaowen Zhang, Fangfang Zhao, Kuiyi You, He'an Luo
1w ago
This work provides an acid-free and efficient strategy for preparation of 1,5-dinitronaphthalene by one-step naphthalene nitration. Synergistic catalysis of the Fe- and Cu-modified S2O82−/ZrO2 superacid catalyst combined O2-Ac2O improved the selectivity to 1,5-dinitronaphthalene. Abstract It is crucial to develop an acid-free, mild, and efficient strategy for preparing 1,5-dinitronaphthalene (1,5-DNN) from naphthalene (NT). This work presented a one-step NT nitration method using NO2 conjugated to an O2-Ac2O system over Fe-/Cu-modified S2O82−/ZrO2 catalyst (Sα2FβCγZ$$ {\mathrm{S}}_{\upalpha ..read more
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Evaluation of the effectiveness of mixing hydrochloric acid and organic acid as stimulation fluids in a tight gas carbonate reservoir
Wiley Online Library » The Canadian Journal of Chemical Engineering
by Mohammad Reza Khaleghi, Ehsan Khamehchi, Amirhossein Abbasi, Javad Mahdavi Kalatehno
2w ago
Abstract Matrix acidizing is a widely used technique in carbonate formations to improve production and injection rates by restoring or improving permeability. This study evaluates the stimulation efficacy of organic and inorganic acid combinations in the Sarajeh carbonate formation, with a focus on improving permeability within this potential tight gas formation. Through solubility and continuous flow tests, a mixture of HCl 7.5% + HAc 2.5% was found to significantly outperform the traditional HCl 15% solution. The HCl 7.5% + HAc 2.5% mixture had a solubility rate of 59.27% and improved permea ..read more
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An optimal sustainable planning strategy for national carbon capture deployment: A review on the state of CO2 capture in Canada
Wiley Online Library » The Canadian Journal of Chemical Engineering
by Samantha A. Usas, Luis Ricardez‐Sandoval
2w ago
Abstract This study reviews the steps Canada is taking to address sustainable decarbonization in the context of carbon capture. This work also presents a new optimal framework for national optimal deployment in need of strategic carbon capture implementation. This framework considers external environmental and social considerations often missing from implementation frameworks, which will aid policy makers in more well-rounded deployment decisions. Thus far, Canada's carbon projects have captured a total of 36.3 Mt of CO2 which has cost over $2.7 billion to implement. The Canadian case study ut ..read more
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