Article
Biochemistry & Molecular Biology
Yan Guo, Chenglong Li, Hongjun Zhao, Ming Gao, Qunhui Wang
Summary: The study investigated the purification of lactic acid from fermentation broth using microfiltration membrane technology. The effects of operation pressure, broth pH, and membrane flushing mode on the filtration performance were examined, and the results revealed the optimal conditions for achieving the best performance. The study suggested that the microfiltration process, when combined with other post-purification processes, could be a promising method for the purification of fermentation broth.
Article
Biotechnology & Applied Microbiology
Ashfaq Ahmad, Israa Othman, Hanifa Taher, Fawzi Banat
Summary: This study investigated the recovery of lactic acid (LA) from fermented date pulp waste using ion-exchange resins. By optimizing pH, initial concentration, and binding ability, successful purification and recovery of LA were achieved. The results demonstrate the potential of ion exchange chromatography for LA recovery from fermentation broth.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Review
Biochemistry & Molecular Biology
Chenglong Li, Ming Gao, Wenbin Zhu, Nuohan Wang, Xiaoyu Ma, Chuanfu Wu, Qunhui Wang
Summary: Lactic acid is an important raw material for the production of polylactic acid, and the separation and purification process for lactic acid is crucial for production cost and product purity. This paper reviews the recent advances in separation technologies, such as phase transition-based methods, membrane separation, and esterification, and discusses the integration of multiple technologies and the coupling of separation and fermentation as future research directions. The goal is to develop more efficient and advanced lactic acid separation technology.
PROCESS BIOCHEMISTRY
(2021)
Review
Biotechnology & Applied Microbiology
Nur Akmal Solehah Din, Seng Joe Lim, Mohamad Yusof Maskat, Sahilah Abd Mutalib, Nurul Aqilah Mohd Zaini
Summary: Lactic acid has become an important chemical substance with increasing global market demand. Fermentation is preferred over chemical synthesis for producing high-purity lactic acid, but the recovery and separation processes are complex and costly, especially for second-generation lactic acid recovery.
BIORESOURCES AND BIOPROCESSING
(2021)
Article
Green & Sustainable Science & Technology
Zezhou Zhang, Run Li, Shaohan Lian, Ziyou Jiang, Qingling Liu, Chunfeng Song
Summary: Prevention and control of volatile organic compounds (VOCs) is an important direction for air pollution control. In this study, a membrane-cryogenic hybrid process was used to recover propane from nitrogen, and life cycle assessment methods were used to evaluate its environmental impact. The evaluation showed that recovering propane from 1.0% to 5.0% C3H8/N2 has significant environmental and economic benefits.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Biochemistry & Molecular Biology
Yan Guo, Chenglong Li, Hongjun Zhao, Xiaona Wang, Ming Gao, Xiaohong Sun, Qunhui Wang
Summary: In this study, the performance of ultrafiltration (UF) process for the refinement of lactic acid (LA) from kitchen waste fermentation was investigated. The results showed that under specific conditions, UF process achieved high removal efficiencies for chroma, turbidity, protein, and total sugar in the fermentation broth, with a LA recovery efficiency of 93.6%. The study confirmed the feasibility of using UF process for LA refinement and suggested further exploration of post-processes to obtain higher quality LA products.
Article
Biotechnology & Applied Microbiology
Nur Akmal Solehah Din, Seng Joe Lim, Mohamad Yusof Maskat, Nurul Aqilah Mohd Zaini
Summary: The study investigates the production of D-lactic acid using coconut husk hydrolysates and demonstrates the efficient recovery of D-lactic acid through in situ separation using an ion exchange resin. This recovered D-lactic acid has the potential to be used in polylactic acid synthesis.
BIOCHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Patrick O. Saboe, Lorenz P. Manker, Hanna R. Monroe, William E. Michener, Stefan Haugen, Eric C. D. Tan, Ryan L. Prestangen, Gregg T. Beckham, Eric M. Karp
Summary: Bio-based carboxylic acids are established as adaptable precursors to renewable biofuels and chemicals, but their separation poses significant energy and cost challenges. The use of weak-base adsorption processes shows promising results in reducing operating costs, energy consumption, and greenhouse gas emissions compared to conventional methods.
Article
Engineering, Chemical
Tutuk Djoko Kusworo, Monica Yulfarida, Andri Cahyo Kumoro, Dani Puji Utomo
Summary: In this study, a pre-filtration process using a microfiltration membrane was carried out to remove impurities in bioethanol fermentation broth. A PVDF-GO/TiO2 membrane with PVA surface-coating modification was fabricated and showed improved hydrophilicity and water permeability. The modified membrane achieved a high rejection rate of 90.77% for unwanted by-products and exhibited a stable high flux performance. The PVA-coated PVDF-GO/TiO2 membrane also demonstrated excellent anti-biofouling properties.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Ramkrishna Singh, Skye Palar, Amy Kowalczewski, Caitlin Swope, Prathap Parameswaran, Ning Sun
Summary: This study developed an adsorptive separation and recovery process for volatile fatty acids (VFAs) from swine wastewater fermentation. The highest adsorption of hexanoic acid was achieved using Relite RAM2 resin with a tertiary amine functional group. Optimal conditions for adsorption were found at pH 3.2 and the VFAs adsorption and recovery efficiency were maintained for 9 successive cycles.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Applied
Wenqing Zheng, Ran Zhao, Haijiao Jia, Yaqin Nan, Pingyi Zheng, Mengqi Cheng, Youxin Li
Summary: Poly-4-vinylpyridine-vinylbenzeneboronic acid polymer microspheres with bifunctional groups were successfully prepared by suspension polymerization. These microspheres exhibited good thermal stability and high adsorption capacity for lactic acid, suggesting their potential application in improving fermentation yield.
REACTIVE & FUNCTIONAL POLYMERS
(2023)
Article
Engineering, Chemical
Xuan Zhang, Hui Li, Yin Guo, Su Ding, Guiguang Chen, Zhiqun Liang, Wei Zeng
Summary: In this study, an integrated strategy was developed for the recovery and purification of high molecular-weight PGA from fermentation broth. Unlike traditional methods, this strategy does not require exogenous precipitants and involves four unit operations to simplify the process and reduce costs. The optimized process achieved a high recovery rate, purity, and molecular weight of PGA, with a production cost of $105.58/kg and payback period of 1.55 years at an annual output level of 50 metric tons.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
M. Courbalay, M. Villain-Gambier, A. Klem, I Ziegler-Devin, S. Dumarcay, D. Trebouet
Summary: This study aimed to investigate the recovery of lignin in thermo-mechanical process water through membrane processes, by adjusting the pH to enhance membrane selectivity towards lignin. It was found that using a 1 kDa nanofiltration membrane at pH 4 could achieve good separation of lignin and hemicelluloses.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Chunfeng Song, Zezhou Zhang, Run Li, Shaohan Lian, Hui Guo, Chengbo Jia, Qingling Liu
Summary: This study designed and optimized membrane materials and the membrane-cryogenic hybrid process for propane recovery using molecular and process simulation. The results showed increased selectivity and permeability, reduced energy consumption and operating expenditure, and achieved high purity propane recovery. The hybrid process based on mixed matrix membranes demonstrated significant techno-economic potential in VOCs recovery.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Chemical
Karol Dudek, Idania Valdez-Vazquez, Joerg Koop
Summary: The present study investigated the feasibility of vacuum distillation in a rotating packed bed (RPB) for the separation and recovery of butanol, ethanol, and furfural. Further purification is needed to obtain a pure product.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Applied
Sasinun Thirabunjongcharoen, Palang Bumroongsakulsawat, Piyasan Praserthdam, Sumittra Charojrochkul, Suttichai Assabumrungrat, Pattaraporn Kim-Lohsoontorn
Summary: This study introduces a novel thermally double coupled reactor that combines endothermic aqueous phase glycerol reforming with exothermic methanol synthesis, utilizing heat transfer. The reactor can operate without external heat supply and various operating conditions significantly affect its performance.
Article
Energy & Fuels
Yuwadee Plaola, Wanwipa Leangsiri, Kanokthip Pongsiriyakul, Worapon Kiatkittipong, Atthapon Srifa, Jun Wei Lim, Prasert Reubroycharoen, Kunlanan Kiatkittipong, Apiluck Eiad-ua, Suttichai Assabumrungrat
Summary: This study investigated the catalytic activity and stability of Ni-MoS2 supported on different catalyst supports for the deoxygenation of different feedstocks. The results showed that the catalytic performance was influenced by both the purity of the feedstock and the characteristics of the catalyst supports. NiMo/γ-Al2O3 exhibited a high resistance to impure feedstock and excellent stability.
Article
Green & Sustainable Science & Technology
Kiattikhoon Phuakpunk, Benjapon Chalermsinsuwan, Suttichai Assabumrungrat
Summary: The study aimed to develop a proper kinetics investigation method for pyrolysis reaction and compared three favorite model-free methods, showing that using Friedman method parameters in a conversion range of 0.1-0.6 gave conversion curves mostly in good agreement with experimental results. Mixing different biomasses showed varying effects on activation energy in different temperature ranges.
Article
Chemistry, Multidisciplinary
Khunnawat Ountaksinkul, Sirada Sripinun, Panut Bumphenkiattikul, Surapon Bubphacharoen, Arthit Vongachariya, Amnart Jantharasuk, Piyasan Praserthdam, Suttichai Assabumrungrat
Summary: This study investigated flow characteristics in a Berty reactor using CFD and CSTR model, revealing the presence of dead volume, bypassing, and back-mixing under different conditions. Recommendations to improve mixing characteristics by increasing pressure and impeller speed were proposed based on the findings.
REACTION CHEMISTRY & ENGINEERING
(2022)
Review
Energy & Fuels
Peerawat Wongsurakul, Mutsee Termtanun, Worapon Kiatkittipong, Jun Wei Lim, Kunlanan Kiatkittipong, Prasert Pavasant, Izumi Kumakiri, Suttichai Assabumrungrat
Summary: Ethanol is a promising biofuel that can replace fossil fuel and reduce greenhouse gas emissions. The production of ethanol involves multiple steps, and different feedstocks require different conversion processes. Lignocellulosic biomass, as a feedstock, needs additional pretreatment to enhance enzymatic hydrolysis efficiency. The formation of inhibitors during pretreatment is a major concern. Additionally, maintaining ethanol quality and understanding the chemical reactions during storage are important factors to consider.
Article
Chemistry, Physical
Raminda Rattanaamonkulchai, Thunyathon Kludpantanapan, Paveenuch Nantapong, Atthapon Srifa, Wanida Koo-Amornpattana, Weerawut Chaiwat, Chularat Sakdaronnarong, Sirapassorn Kiatphuengporn, Tawatchai Charinpanitkul, Suttichai Assabumrungrat, Suwimol Wongsakulphasatch, Apiluck Eiad-ua, Masao Sudoh, Ryo Watanabe, Choji Fukuhara, Sakhon Ratchahat
Summary: In this study, a novel combined process of CO2 methanation and catalytic decomposition of methane was developed for simultaneous production of hydrogen and carbon nanotubes from biogas. The results showed that the combined process with a steam condenser greatly improved the productivity and quality of carbon nanotubes, as well as the purity of hydrogen.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Chemical
Kunlanan Puprasit, Doonyapong Wongsawaeng, Kanokwan Ngaosuwan, Worapon Kiatkittipong, Suttichai Assabumrungrat
Summary: Non-thermal dielectric barrier discharge (DBD) plasma with needle-in-tube configuration was used to improve the hydrogenation reaction for trans-fat free margarine production. The plasma treatment effectively reduced the unsaturated fatty acid composition, increased the saturated fatty acid composition, and improved the texture and melting point of the margarine.
JOURNAL OF FOOD ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Munsuree Kalong, Sakhon Ratchahat, Pongtanawat Khemthong, Suttichai Assabumrungrat, Atthapon Srifa
Summary: Cu/CaO catalysts with fine-tuned Co-doping were synthesized and exhibited excellent catalytic performance in the hydrogenation of furfural. The addition of Co improved the reducibility of the catalyst, resulted in smaller catalyst particles, and fine-tuned the acidic and basic sites, leading to enhanced selectivity and yield of the desired product. The catalyst showed high stability throughout the reaction.
Article
Green & Sustainable Science & Technology
Shiva Prasad Gouda, Kanokwan Ngaosuwan, Suttichai Assabumrungrat, Manickam Selvaraj, Gopinath Halder, Samuel Lalthazuala Rokhum
Summary: Room temperature sulfonated UiO-66 exhibited excellent catalytic performance in converting oleic acid to methyl oleate under microwave irradiation. The catalyst, with high sulfonic acid density and surface area, achieved high conversion rates by optimizing reaction conditions. The catalyst and product were thoroughly characterized, and the catalyst's reusability was also investigated.
Article
Chemistry, Physical
Munsuree Kalong, Atthapon Srifa, Sakhon Ratchahat, Wanida Koo-amornpattana, Yingyot Poo-arporn, Wanwisa Limphirat, Pongtanawat Khemthong, Suttichai Assabumrungrat, Keiichi Tomishige, Sibudjing Kawi
Summary: In this study, different Ni to Fe molar ratios of as-synthesized gamma-Al2O3 supported-NiFe catalysts were used for the continuous hydrogenolysis of 5-hydroxymethylfurfural (5-HMF) to 2,5-dimethylfuran (2,5-DMF). The catalyst with a Ni to Fe molar ratio of 0.74: 0.97 showed the highest yield of 2,5-DMF compared to monometallic NiAl and FeAl catalysts. The comprehensive characterizations revealed the interaction and reduction behavior differences, as well as the increase in acidic sites due to the addition of Ni.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Agricultural Engineering
Kankana Saikia, Kanokwan Ngaosuwan, Suttichai Assabumrungrat, Bhaskar Singh, Patrick U. Okoye, Umer Rashid, Samuel Lalthazuala Rokhum
Summary: We investigated the catalytic application of sulphonated cellulose based solid carbon catalyst for the conversion of oleic acid to methyl oleate-biodiesel production under microwave irradiation. The optimized reaction conditions using response surface methodology (RSM) were found to be methanol to oleic acid molar ratio (MOMR) of 21:1, 60 min reaction time, 8 wt % catalyst loading, and a temperature of 80 degrees C, resulting in a predicted biodiesel yield of 96.77% and an experimental yield of 97.6 +/- 0.2%. The catalyst showed good recyclability for at least 5 reaction cycles, making it a promising candidate for sustainable biodiesel production.
BIOMASS & BIOENERGY
(2023)
Article
Green & Sustainable Science & Technology
Grittima Kongprawes, Doonyapong Wongsawaeng, Peter Hosemann, Kanokwan Ngaosuwan, Worapon Kiatkittipong, Suttichai Assabumrungrat
Summary: Catalytic-free parallel-plate-type dielectric barrier discharge (DBD) plasma was used to hydrogenate palm oil using glycerol as a hydrogen donor, resulting in enhanced oxidation stability of hydrogenated fatty acid methyl ester (H-FAME). Optimal reaction conditions were determined, and it was found that plasma effectively extracted hydrogen radicals from glycerol and reacted with C-C bonds. The hydrogenated palm oil was then converted into HFAME via base-catalyzed transesterification. The developed plasma hydrogenation process adds value to waste glycerol and provides alternative hydrogen sources, while also being environmentally friendly.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Piyawan Thanahiranya, Pongtorn Charoensuppanimit, Jhuma Sadhukhan, Apinan Soottitantawat, Amornchai Arpornwichanop, Nuttha Thongchul, Suttichai Assabumrungrat
Summary: This study investigates the most promising technology for succinic acid production from glycerol from the biodiesel industry. It is found that the addition of dimethyl sulfoxide (DMSO) is key for bio-based succinic acid production. Evaluation based on techno-economic, energy, exergy, and greenhouse gas (GHG) emissions performances shows that bio-based succinic acid production can compete with the petrochemical route and reduce GHG emissions by 26%.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Analytical
Peeranat Kongngoen, Worasak Phetwarotai, Suttichai Assabumrungrat, Neeranuch Phusunti
Summary: The cracking of heavy wax derived from mixed plastics using spent fluid catalytic cracking catalyst was investigated. The spent FCC catalyst showed the highest liquid oil yield with the least amount of coke production. The influence of catalyst-wax ratio and cracking temperature on product distribution was also studied. The study demonstrated the possibility of upgrading heavy wax into liquid fuels and chemicals using the spent FCC catalyst.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Multidisciplinary Sciences
Worapak Tanwongwan, Nuwong Chollacoop, Kajornsak Faungnawakij, Suttichai Assabumrungrat, Puritut Nakhanivej, Apiluck Eiad-ua
Summary: Zeolite, especially MCM-22 zeolite, is a promising material with excellent intrinsic properties for environmental solutions. In this study, a sustainable synthesis route of MCM-22 zeolite using natural resources as starting materials was demonstrated. The results showed that high purity MCM-22 zeolite can be obtained from rice husk silica and aluminosilicate gel extracted from kaolin. Evaluation of reaction time and RHS/ASG ratio on the crystallinity and surface area of MCM-22 was conducted, and the optimal product exhibited desired acidity. Rating: 8/10.