Article
Chemistry, Analytical
Salman Raza Naqvi, Muhammad Naqvi, Abrar Inayat, Paula Blanco-Sanchez
Summary: This study investigates the impact of synthetic zeolites with different shapes and properties on the products of microalgae pyrolysis, showing that delaminated zeolites can more effectively promote deoxygenation reactions to produce aromatic compounds.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Thermodynamics
Wenwen Kong, Boxiong Shen, Jiao Ma, Jia Kong, Shuo Feng, Zhuozhi Wang, Lifu Xiong
Summary: The pyrolysis characteristics of Spirulina platensis, Tetradesmus obliquus, and Chlorella vulgaris were investigated by various techniques. The elemental and biochemical composition of different microalgae influenced their pyrolysis behavior. The pyrolysis process of the three microalgae could be divided into several stages, and the major reaction occurred at a certain temperature range. Different products and activation energies were observed for each microalgae. The pyrolysis of Spirulina platensis produced more CO2 and compounds containing C=O bonds, while Tetradesmus obliquus and Chlorella vulgaris produced slightly higher levels of hydrocarbons.
Article
Chemistry, Analytical
Lingjun Zhu, Jian Xu, Yujie Dai, Jian Jiang, Shan Liao, Guojun Zhou, Shurong Wang
Summary: This study investigated the thermal degradation process of tobacco leaves and the release behavior of small molecular gas products. The results showed that the composition of nitrogen-containing heterocyclic compounds and hydrocarbons in the tobacco leaves was highly influenced by temperature.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Energy & Fuels
Zhiwei Wang, Mengge Wu, Gaofeng Chen, Mengju Zhang, Tanglei Sun, Kiran G. Burra, Shuaihua Guo, Yan Chen, Shuhua Yang, Zaifeng Li, Tingzhou Lei, Ashwani K. Gupta
Summary: Co-pyrolysis technology is an important method for the efficient utilization of waste tires and biomass resources, with synergistic effects observed in the pyrolysis of waste tire and maize stalk. The co-pyrolysis process showed increased weight loss, and the FTIR and GC/MS analysis revealed similar functional groups and improved product yields.
Article
Energy & Fuels
Sabah Mariyam, Mohammad Alherbawi, Naim Rashid, Tareq Al-Ansari, Gordon McKay
Summary: This study compares the effects of pyrolysis on single, binary, and ternary feeds and finds that the generated bio-oil has great potential for volatiles, diesel, and gasoline production. Future studies should focus on the effects of procedural parameters on bio-oil composition and employ additional molecular techniques to understand reaction mechanisms.
Article
Agricultural Engineering
Ranjeet Kumar Mishra
Summary: The present study investigates the physicochemical characterization, kinetic, thermal degradation behaviors, and online characterization of vapour products. The results demonstrate the potential of the pyrolysis feedstock and provide insights into the reaction mechanisms and composition changes during pyrolysis process.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Wei-Hsin Chen, Shih-Che Sun, Jherwin B. Ocreto, Thanh-Binh Nguyen, Su Shiung Lam, Young-Kwon Park, Cheng-Di Dong
Summary: The detailed combustion behavior and pyrolysis kinetics of microplastics are still absent in the current research. Adding silica to HDPE microplastics can effectively avoid their agglomeration during pyrolysis. The results suggest that less than 20% of PE in the mixture can retain microplastic pyrolysis characteristics.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Paper & Wood
Junwei Lou, Xiaochen Yue, Yafeng Yang
Summary: In this study, the feasibility of using Cotinus nana's bark as biofuel and biochemicals under the catalysis of nano-Co3O4/NiO was explored. The results showed that the pyrolysis products of the bark are rich in phenols, alcohols, and biofuels. NiO demonstrated the most significant catalytic effect in the pyrolysis process. Therefore, Cotinus nana's bark is an excellent plant material for biofuels and biochemicals.
Article
Chemistry, Analytical
Raquel Marques, Michel Sablier, Jaap J. Boon, Gauthier Rose, Leslie Carlyle, Isabel Pombo Cardoso, Laurence De Viguerie
Summary: This study analyzed brown bitumen oil paint reconstructions based on 19th century production records using thermal chemical analysis methods. It found that the asphalt markers in Trinidad Lake asphalt (TLA) were no longer detectable after heat processing, providing a possible explanation for the lack of evidence in previous studies.
MICROCHEMICAL JOURNAL
(2022)
Article
Plant Sciences
Francisco Quintas-Nunes, Pedro. R. R. Brandao, Maria. T. T. Barreto Crespo, Bernard. R. R. Glick, Francisco. X. X. Nascimento
Summary: This study presents a functional and genomic characterization of strain NFX-FRZ, a eukaryotic microalga belonging to the Micractinium genus, isolated from the rhizosphere of a plant in Portugal. The results show that strain NFX-FRZ belongs to a novel species, promotes tomato plant growth by synthesizing plant growth-promoting compounds and contains genes involved in phytohormone biosynthesis and signaling. This research provides insights into the importance of eukaryotic microalgae as plant growth-promoting agents and contributes to the understanding of phytohormone biosynthesis, signaling, and plant-microalgae interactions.
Article
Chemistry, Analytical
A. Marcilla, D. Berenguer, I. Martinez
Summary: Five potential additives, including three zeolites and two silicates, have been studied for reducing harmful compounds generated when smoking Heet tobacco. The results show that USY and SBA-15 additives exhibit significant reductions, with SBA-15 showing the largest reduction in total particle matter.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Materials Science, Paper & Wood
Xiaochen Yue, Zhaolin Li, Su Shiung Lam, Wan-Xi Peng, Yifeng He
Summary: This study analyzed the nutlet of Cornus officinalis using various techniques and found that its active ingredients have medicinal value and could be used as a substitute for the fruit. The residue left after extracting the active ingredients can be used as biomass liquid fuel, potentially replacing fossil fuels.
Article
Engineering, Environmental
Yanghui Xu, Qin Ou, Xintu Wang, Feng Hou, Peng Li, Jan Peter van der Hoek, Gang Liu
Summary: This study used pyrolysis gas chromatography-mass spectrometry to determine the mass concentrations of microplastics (MPs) and nanoplastics (NPs) in two wastewater treatment plants (WWTPs). The results showed that the mass concentrations of total MPs and NPs decreased during the treatment process, with NPs having a lower removal efficiency than MPs. It was estimated that approximately 0.321 and 0.052 tons of MPs and NPs were released into the river each year based on the annual wastewater effluent discharge. Overall, this study provided valuable information about the pollution level and distribution characteristics of MPs, especially NPs, in WWTPs.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Zechen Li, Yan Gao, Qihang Wu, Bing Yan, Xiaoxia Zhou
Summary: This study developed a simple and robust protocol for the extraction of PS-NPs from environmental solid samples using Py-GC/MS technique. It was found that environmental solid matrices can serve as important sources and sinks of NPs.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Thermodynamics
Yuan Jiang, Peijie Zong, Bin Tian, Xue Ming, Fanfan Xu, Yuanyu Tian, Yingyun Qiao, Dawei Li, Qingshuo Song, Qiankun Yu
Summary: Studying the pyrolysis behavior of the saturate component in coal, which mainly consists of volatile substances, through the combined utilization of TG-FTIR and Py-GC/MS revealed a free radical reaction mechanism. The research provides a methodological model for exploring other group components and reveals specific details about the pyrolysis of coal.
Article
Energy & Fuels
Min Xiong, Jin Huang, Xinrui He, Zhihui Zhou, Xiangjiang Qu, Shah Faisal, Abdelfatah Abomohra
Summary: The present study evaluated the total energy output and economic feasibility of biodiesel production coupled with value-added nitrogen-containing compounds through co-pyrolysis of low-and high-protein bio-waste. The co-pyrolysis process resulted in higher bio-oil yield and increased proportion of fatty acids/esters compared to individual pyrolysis. Transesterification of the co-pyrolyzed bio-oil showed a significantly higher biodiesel proportion and total energy output than conventional bio-oil production. The presence of value-added nitrogen-containing compounds in the co-pyrolyzed bio-oil also added additional revenue potential.
Article
Energy & Fuels
Chuan Yuan, Shuang Zhao, Jun Ni, Ying He, Bin Cao, Yamin Hu, Shuang Wang, Lili Qian, Abdelfatah Abomohra
Summary: This study investigated the use of waste aqueous phase from hydrothermal sludge treatment for cultivating the microalgae Chlorella sp. The results showed that the waste aqueous phase can serve as a suitable medium for Chlorella sp, with a nitrogen and phosphorus removal efficiency of over 90%. It was also found that the addition of CO2 during microalgal cultivation can enhance the growth of Chlorella sp and increase lipid content. Optimal cultivation conditions were determined as 5% CO2, BG-11/SAP = 1:1 mixed medium, and a cultivation period of 8 days. Furthermore, a comparison was made between the bio-oil and aqueous phase obtained from fast hydrothermal liquefaction and regular hydrothermal liquefaction.
Article
Chemistry, Analytical
Weiwei Shen, Bin Cao, Mao Mu, Chuan Yuan, Chao Li, Xun Hu, Shuang Wang, Abdelfatah Abomohra
Summary: Activated biochar prepared from phaeophyte Hizikia fusiformis was used as a catalyst for monophenols recovery during the pyrolysis of waste sawdust. The results showed that KOH as an activator had the highest environmental burdens and lower greenhouse gas emissions compared to other activated biochars. The activated biochar catalyst significantly promoted the yields of monophenols due to its porous structure and surface functional groups.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Environmental Sciences
Shah Faisal, Reham Ebaid, Min Xiong, Jin Huang, Qingyuan Wang, Mohamed El-Hefnawy, Abdelfatah Abomohra
Summary: A novel approach is suggested to enhance the energy recovery from rice straw through a two-step conversion using eggshell-based catalytic pyrolysis followed by biochar-based anaerobic co-digestion. The addition of eggshell increased the biomethane yield by 95.6% and also increased the bio-oil yield by 41.6%.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Bin Cao, Shuanhu Hu, Kai Zhu, Cheng Pan, Fatma Marrakchi, Jun Ni, Chuan Yuan, Lili Qian, Hao Chen, Jianping Yuan, Abdelfatah Abomohra, Pietro Bartocci, Francesco Fantozzi, Shuang Wang
Summary: The effects of biochemical components and processing variables on the product yields and biofuel quality during fast hydrothermal liquefaction of CO2-tolerant microalgae were investigated. Results showed that the maximum bio-oil yield was obtained at specific conditions, and ethanol concentration had the highest impact on bio-oil yield. Furthermore, the increase of ethanol concentration improved the bio-oil quality by reducing carboxylic acids and nitrogen-containing compounds while enhancing the esters content. Fast hydrothermal liquefaction is a promising approach to produce high-quality biofuels from microalgae.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biology
Mohamed Ashour, Ahmed Said Al-Souti, Shimaa M. Hassan, Gamal A. G. Ammar, Ashraf M. A. -S. Goda, Rania El-Shenody, Abd El-Fatah Abomohra, Ehab El-Haroun, Mostafa E. Elshobary
Summary: Seaweeds are being recognized as a sustainable source of bioactive compounds for various applications. The use of a biorefinery approach allows for the valorization of multiple products simultaneously. The study showed that TAM (R) improved the growth and nutritional value of strawberry plants, as well as increased bioethanol production from seaweed biomass.
Article
Environmental Sciences
Peter Kaba, Sato Shushi, Eric Gyimah, Mansuur Husein, Abdelfatah Abomohra
Summary: The study aimed to analyze the levels of heavy metals in fish from the Yangtze River and their implications for human health. Six different fish species were collected and their muscle tissues were digested using standard protocols. The concentrations of lead, cadmium, zinc, aluminum, cobalt, manganese, chromium, and copper were analyzed. The results showed that zinc had the highest mean concentration in one of the fish species, followed by manganese, copper, lead, chromium, cadmium, and nickel. Health risk assessments indicated that children are particularly at risk for lead, cadmium, and cobalt when consuming these fish species.
Editorial Material
Environmental Sciences
Leonel Pereira, Gehan Ismail, Abdelfatah Abomohra
FRONTIERS IN MARINE SCIENCE
(2023)
Editorial Material
Biotechnology & Applied Microbiology
Abdelrahman Zaky, Abdelfatah Abomohra
FERMENTATION-BASEL
(2023)
Review
Construction & Building Technology
Yunhui Pu, Lang Li, Xiaoshuang Shi, Qingyuan Wang, Abdelfatah Abomohra
Summary: This article provides a comprehensive summary of the research status, mechanisms, and application effects of accelerated carbonation in the life cycle of cement-based materials. It discusses various methods and strategies to enhance carbonation efficiency. The review also analyzes CO2 mitigation potential, research gaps, and future perspectives. The findings show that carbonation reactions can extract high-purity calcium carbonates from cement-based wastes and valorize them as high-quality recycled aggregates. CO2 curing can improve compressive strength and durability, while different accelerated carbonation methods have distinct advantages in industry practice.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Chemistry, Applied
Ding Jiang, Hongping Li, Xiaoxue Cheng, Abdelfatah Abomohra, Yamin Hu, Arman Amani Babadi, Pietro Bartocci, Xun Hu, Shuang Wang
Summary: This study investigated the control mechanism of free radicals on phenolic products selectivity by using guaiacol as a model chemical. The results showed that gaseous radicals or carbon-centered radicals could promote phenols formation through different mechanisms. Methyl radicals were mainly responsible for the selectivity of phenols in the gas-phase system, while in the heterogeneous system, adsorption of methyl radicals and phenolic radicals on carbon edge sites played a crucial role. The presence of carbon-centered radicals distributed at zigzag edges on the carbon surface was found to be essential for the rapid conversion of lignin to phenols.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Meysam Madadi, Mahdy Elsayed, Guojie Song, Mahmoud M. Bakr, Yuanhang Qin, Fubao Sun, Abdelfatah Abomohra
Summary: This study presents a novel pretreatment method using hydrotropic p-toluenesulfonic acid (TsOH) mixed with pentanol for efficient fractionation of lignocellulosic biomass (LCB). The pretreatment resulted in the dissolution of majority of lignin and hemicellulose in the biphasic phase, while retaining most of the cellulose in the solid phase. The cellulose-rich fraction was further fermented to produce bioethanol, while the xylose-rich phase was converted into xylonic acid.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Environmental Sciences
Jialing Tang, Xiangjiang Qu, Si Chen, Yunhui Pu, Xinrui He, Zhihui Zhou, Huijun Wang, Ni Jin, Jin Huang, Faisal Shah, Yisong Hu, Abdelfatah Abomohra
Summary: Microalgae cultivation using wastewater as a combined process for pollutant removal and lipid production was studied. The effects of anaerobic membrane effluent (AME) and municipal wastewater (MW) ratios on microalgae growth and pollutant removal processes were investigated. The optimal condition for microalgal biomass accumulation and lipid production was found to be a 40% AME content.
Review
Biotechnology & Applied Microbiology
Ahmad Mustafa, Shah Faisal, Inas A. Ahmed, Mamoona Munir, Eliane Pereira Cipolatti, Evelin Andrade Manoel, Carlo Pastore, Luigi di Bitonto, Dieter Hanelt, Febri Odel Nitbani, Zeinhom M. El-Bahy, Abrar Inayat, Tamer M. M. Abdellatief, Konstantza Tonova, Awais Bokhari, Abdelfatah Abomohra
Summary: With the growth of the chemical industry, the demand for cheaper and more environmentally friendly alternatives to petrochemicals has increased. Oleochemicals and biodiesel are considered as green alternatives to petroleum derivatives. The enzymatic production of these compounds is more environmentally friendly and energy efficient compared to traditional chemical processes. However, the high cost of lipases has limited their large-scale utilization. This review discusses the factors affecting the economic feasibility of enzymatic processes and reports the recent advances in lipase-catalyzed production of these compounds in both lab and large-scale settings.
BIOTECHNOLOGY ADVANCES
(2023)
Article
Environmental Sciences
Adel I. Alalawy, Yang Yang, Fahad M. Almutairi, Haddad A. El Rabey, Mohammed A. Al-Duais, Abdelfatah Abomohra, El-Sayed Salama
Summary: Wastewater treatment using microalgae is a sustainable and environmentally friendly method. This study investigated the growth characteristics, nutrient removal, fatty acid composition, and biodiesel quality of a freshwater microalgal strain cultivated in municipal wastewater with different NaCl concentrations. The results showed that high salt conditions inhibited the growth and nutrient removal capacity of the microalgae, but at certain salt concentrations, the biodiesel quality of the microalgae reached international standards.
AIMS ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Analytical
Guanshuai Zhang, Shanjian Liu, Dongmei Bi, Zhisen He, Jia Liu, Yinjiao Liu
Summary: Hydrogen peroxide pretreatment was applied for fast pyrolysis of corn stalks, and it was found that the pretreatment effectively promoted lignin depolymerization and decreased the reaction activation energy. The pretreatment also increased the cellulose content and removed alkali and alkaline earth metals from the biomass. The pH of the hydrogen peroxide solution affected the removal of lignin and ash by the pretreatment, and the composition of bio-oil changed significantly, with a significant increase in the relative content of levoglucosan after pretreatment.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2024)
