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Mathematical modelling and parametric studies for the methanol production in fixed bed catalytic reactor using Aspen plus

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AIP Conference Proceedings 2023年第1期2571卷

作者： Mohd Azahar Mohd Ariff Nor Adila Mohd Nasir Zulkifli Abdul Rashid Nur Alwani Ali Bashah Fakhrony Sholahudin Rohman School of Chemical Engineering College of Engineering Universiti Teknologi MARA Cawangan Pulau Pinang Kampus Permatang Pauh 13500 Permatang Pauh Pulau Pinang Malaysia Molecular System Design Process & Optimization Research Group (MODEPRO) Universiti Teknologi MARA Cawangan Pulau Pinang Kampus Permatang Pauh 13500 Permatang Pauh Pulau Pinang Malaysia School of Chemical Engineering College of Engineering Universiti Teknologi MARA 40450 Shah Alam Selangor Malaysia School of Chemical Engineering Engineering Campus Universiti Sains Malaysia Seri Ampangan 14300 Nibong Tebal Seberang Perai Selatan Pulau Pinang Malaysia

In this study, methanol production was simulated using Aspen plus mathematical modelling and the effect of pressure and temperature towards methanol reactor production and selectivity as well as reactant conversions were investigated. Nowadays, the number of methanol plants are increasing due to high demand worldwide. Reactor is one of the main equipment for the methanol production and high impact accident such as explosion, may happen due to the upset of the critical process temperature and pressure which also could create major fluctuation of the methanol production. Thus, the reactor behaviour needed to be studied promptly so that the risk assessment can be performed in a later stage. A mathematical model for the fixed bed catalytic reactor which used RPLUG in Aspen Plus software was developed based on industrial data. The model had been validated and the percent error was below 5.5% compared to the industrial data. The model was also much better compared to the previous research which used ANN MATLAB for the model validation. Overall, it concluded that Aspen Plus simulation for this model could be used to simulate the process with regards to any changes in the process parameters.

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Publisher Correction: Mixed matrix formulations with MOF molecular sieving for key energy-intensive separations

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Nature materials 2019年第1期18卷 90页

作者： Gongping Liu Valeriya Chernikova Yang Liu Kuang Zhang Youssef Belmabkhout Osama Shekhah Chen Zhang Shouliang Yi Mohamed Eddaoudi William J Koros School of Chemical & Biomolecular Engineering Georgia Institute of Technology Atlanta GA USA. State Key Laboratory of Materials-Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials College of Chemical Engineering Nanjing Tech University Nanjing China. Advanced Membranes & Porous Materials Center Division of Physical Sciences and Engineering Functional Materials Design King Abdullah University of Science and Technology Discovery and Development research group (FMD3) Thuwal Saudi Arabia. Advanced Membranes & Porous Materials Center Division of Physical Sciences and Engineering Functional Materials Design King Abdullah University of Science and Technology Discovery and Development research group (FMD3) Thuwal Saudi Arabia. mohamed.eddaoudi@kaust.edu.sa. School of Chemical & Biomolecular Engineering Georgia Institute of Technology Atlanta GA USA. wjk@chbe.gatech.edu.

In the version of this Article originally published, the units of the y axis of Fig. 3b were incorrectly given as '10 cm s'; they should have been '10 cm s'. This has been corrected in the online versi...

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Fueling the future with fungal genomics

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Mycology 2011年第3期2卷 192-209页

作者： Grigoriev, Igor V. Cullen, Daniel Goodwin, Stephen B. Hibbett, David Jeffries, Thomas W. Kubicek, Christian P. Kuske, Cheryl Magnuson, Jon K. Martin, Francis Spatafora, Joseph W. Tsang, Adrian Baker, Scott E. US DOE Joint Genome Institute Walnut Creek CA United States USDA Forest Service Forest Products Laboratory Madison WI United States USDA-Agricultural Research Service Purdue University West Lafayette IN United States Biology Department Clark University Worcester MA United States Institute of Chemical Engineering University of Technology Vienna Austria Los Alamos National Laboratory Bioscience Division Los Alamos NM United States Chemical and Biological Process Development Group Pacific Northwest National Laboratory Richland WA United States Tree-Microbe Interactions Joint Unit INRA-Nancy Champenoux France Department of Botany and Plant Pathology Oregon State University OR United States Centre for Structural and Functional Genomics Concordia University Montreal QC Canada

Fungi play important roles across the range of current and future biofuel production processes. From crop/feedstock health to plant biomass saccharification, enzyme production to bioprocesses for producing ethanol, higher alcohols, or future hydrocarbon biofuels, fungi are involved. research and development are underway to understand the underlying biological processes and improve them to make bioenergy production efficient on an industrial scale. Genomics is the foundation of the systems biology approach that is being used to accelerate the research and development efforts across the spectrum of topic areas that impact biofuels production. In this review, we discuss past, current, and future advances made possible by genomic analyses of the fungi that impact plant/feedstock health, degradation of lignocellulosic biomass, and fermentation of sugars to ethanol, hydrocarbon biofuels, and renewable chemicals. © 2011, 2011 Mycological Society of China.

关键词： Biofuels Fungi Genomics

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Optimization of supercritical fluid extraction of Mariposa Christia Vespertilionis leaves towards antioxidant using response surface methodology

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Journal of Physics: Conference Series 2019年第1期1349卷

作者： MAM Ariff S Tukiman NAA Razak M S Osman J Jaapar Faculty of Chemical Engineering Universiti Teknologi MARA Cawangan Pulau Pinang 13500 Permatang Pauh Penang MALAYSIA. Molecular System Design Process & Optimization Research Group (MODEPRO) Universiti Teknologi MARA Cawangan Pulau Pinang 13500 Permatang Pauh Penang MALAYSIA Faculty of Computer Science and Mathematics Universiti Teknologi MARA Cawangan Pulau Pinang 13500 Permatang Pauh Penang MALAYSIA Faculty of Chemical Engineering Universiti Teknologi MARA 40450 Shah Alam Selangor MALAYSIA.

Mariposa Christia Vespertilionis (MCV) or also known as butterfly wing leaves, is popular in the traditional medicine practice. The objective of this study is to optimize the antioxidant components (based on antioxidant activity analysis) from the MCV leaves extract using Supercritical Fluid Extraction (SFE) based on different temperature, pressure, and particle size via Response Surface Methodology (RSM). Besides that, it is also to evaluate the optimal condition of different extracting antioxidant activity from MCV leaves using design Expert 10 software. The condition range for both pressure and temperature were between 150-350 bar and 30-70 °C with constant extraction time. The size of particle samples were between 63 μm-1000 μm. The antioxidant was analyzed using UV–vis Spectrophotometer (UV-vis). The lowest antioxidant activity was 8.20 % and higher antioxidant activity was obtained at 49.76 %. Lower absorbance indicated highest free radical scavenging activities. Maximum percentage (%) indicated high scavenging activities, thus higher 1,1-diphenyl-2-picrylhydrazyl (DPPH) is a good indication for antioxidant. The predicted RSM optimal condition of antioxidant activity was at temperature 50 °C, pressure 282 bar, and particle size 500 μm, which the predicted antioxidant was 50.62 %. Upon verification through experiment, it was found out that the antioxidant activity value was close to the predicted value with an average error of less than 1%.

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Enabling Fluorinated MOF‐Based Membranes for Simultaneous Removal of H2S and CO2from Natural Gas

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Angewandte Chemie 2018年第45期130卷

作者： Gongping Liu Amandine Cadiau Yang Liu Karim Adil Valeriya Chernikova Ionela‐Daniela Carja Youssef Belmabkhout Madhavan Karunakaran Osama Shekhah Chen Zhang Arun K. Itta Shouliang Yi Mohamed Eddaoudi William J. Koros School of Chemical & Biomolecular Engineering Georgia Institute of Technology 311 Ferst Dr. NW Atlanta GA 30332 USA College of Chemical Engineering Nanjing Tech University 5 Xinmofan Road Nanjing 210009 P. R. China King Abdullah University of Science and Technology Advanced Membranes & Porous Materials Center Division of Physical Sciences and Engineering Functional Materials Design Discovery and Development research group (FMD3) Thuwal 23955-6900 KSA

Membrane‐based gas separations are energy efficient processes; however, major challenges remain to develop high‐performance membranes enabling the replacement of conventional separation processes. Herein, a new fluorinated MOF‐based mixed‐matrix membrane is reported, which is formed by incorporating the MOF crystals into selected polymers via a facile mixed‐matrix approach. By finely controlling the molecular transport in the channels through the MOF apertures tuned by metal pillars and at the MOF‐polymer interfaces, the resulting fluorinated MOF‐based membranes exhibit excellent molecular sieving properties. These materials significantly outperform state‐of‐the‐art membranes for simultaneous removal of H 2 S and CO 2 from natural gas—a challenging and economically important application. The robust fluorinated MOFs (NbOFFIVE‐1‐Ni, AlFFIVE‐1‐Ni), pave a way to efficient membrane separation processes that require precise discrimination of closely sized molecules.

关键词： CO2/CH4 Erdgas H2S Metall-organische Gerüste Mixed-Matrix-Membranen

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Externally Triggered Glass Transition Switch for Localized On‐Demand Drug Delivery†

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Angewandte Chemie 2009年第52期121卷

作者： Jos T. F. Keurentjes Maartje F. Kemmere Henny Bruinewoud Micky A. M. E. Vertommen Stefan A. Rovers Richard Hoogenboom Léon F. S. Stemkens Fabiènne L. A. M. A. Péters Naomi J. C. Tielen Dirk T. A. van Asseldonk Anne F. Gabriel Elbert A. Joosten Marco A. E. Marcus Process Development Group Department of Chemical Engineering and Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven (The Netherlands) Dolphys Medical B.V. Den Dolech 2 5612 AZ Eindhoven (The Netherlands) Pain Management and Research Center Department of Anaesthesiology Academic Hospital Maastricht P.O. Box 5800 6202 AZ Maastricht (The Netherlands)

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SEAKEEPING BY design

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NAVAL ENGINEERS JOURNAL 1980年第2期92卷 157-178页

作者： COMSTOCK, EN KEANE, RG Mr. Edward N. Comstock is currently Head of the Surface Ship Hydrodynamics Section (SEA 32132) of the Hull Form Design Performance and Stability Branch Naval Sea Systems Command. He received his B.S.E. degree in Naval Architecture and Marine Engineering in 1970 and his M.S. degree in Ship Hydrodynamics in 1974 both from the University of Michigan. Mr. Comstock began his professional career with the U.S. Navy in 1974 as a Seakeeping Specialist in the Hull Form and Fluid Dynamics Branch of the former Naval Ship Engineering Center being involved in improving the design of naval ships through the integration of R&D technology advances into the ship design process. His efforts prior to 1980 were mainly aimed at developing and establishing Seakeeping Performance Assessment and Design Practices. Other responsibilities have included numerous ship performance investigations in still water and in the sea environment in support of ship design and specific Fleet problems. Prior to his employment by the Navy he worked in the Structural and Hydrodynamic Groups of General Dynamics' Electric Boat Division. There his activities spanned the areas of Submarine structural and Hydrodynamic Design and Construction. A member of ASNE since 1978. he is also a member of ASE and SNAME and has been active in supporting the efforts of the SNAME H-7 (Seakeeping) Panel the National Science Foundation (NSF). and the NATO Naval Armaments Group 6/Sub-Group 5 (Seakeeping). Mr. Robert G. Keane Jr. is presently Head of the Hull Form Design. Performance and Stability Branch (SEA 3213). Ship Design and Integration Directorate (SEA 03). Naval Sea Systems Command (NAVSEA). He received his B.E.S. degree in Mechanical Engineering from The Johns Hopkins University in 1962. his M.S. degree in Mechanical Engineering from the Stevens Institute of Technology in 1967. and his M.S.E. degree in Naval Architecture from the University of Michigan in 1970. Additionally he has done graduate work in Management Science and Operations Research at The Johns Ho

“Seakeeping … is the ability of our ships to go to sea, and Successfully and safely execute their missions despite adverse environmental factors.” — VAdm. R.E. Adamson. USN In June 1975, VAdm. R.E. Adamson, USN, then Commander Naval Surface Forces, U.S. Atlantic Fleet, addressed the participants of the Seakeeping Workshop [1] and established what has come to be a most profound definition of seakeeping as it relates to the U.S. Navy. In those few words he identified the two major issues facing the operator today and provided the focus for all subsequent seakeeping efforts within the design community at the Naval Sea Systems Command (NAVSEA). For it is these two hues of mission sum and safety at sea which are addressed within NAVSEA, for each new ship design and for ships in the Fleet, in terms of: SEAKEEPING PERFORMANCE — Ability to execute mission in a sea environment, and SEAWORTHINESS — Ability to survive in an extreme sea environment. In the past, the design of ships exhibiting superior seakeeping performance and seaworthiness and seaworthiness has been looked upon by many as an art or an academic exercise. The objective of this paper then is to demonstrate clearly that the ability of our ships to execute their missions successfully and safely in a sea environment is not by chance but by design.

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The amazing potential of fungi:50 ways we can exploit fungi industrially

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Fungal Diversity 2019年第4期97卷 1-136页

作者： Kevin D.Hyde Jianchu Xu Sylvie Rapior Rajesh Jeewon Saisamorn Lumyong Allen Grace T.Niego Pranami D.Abeywickrama Janith V.S.Aluthmuhandiram Rashika S.Brahamanage Siraprapa Brooks Amornrat Chaiyasen K.W.Thilini Chethana Putarak Chomnunti Clara Chepkirui Boontiya Chuankid Nimali I.de Silva Mingkwan Doilom Craig Faulds Eleni Gentekaki Venkat Gopalan Pattana Kakumyan Dulanjalee Harishchandra Hridya Hemachandran Sinang Hongsanan Anuruddha Karunarathna Samantha C.Karunarathna Sehroon Khan Jaturong Kumla Ruvishika S.Jayawardena Jian-Kui Liu Ningguo Liu Thatsanee Luangharn Allan Patrick G.Macabeo Diana S.Marasinghe Dan Meeks Peter E.Mortimer Peter Mueller Sadia Nadir Karaba N.Nataraja Sureeporn Nontachaiyapoom Meghan O’Brien Watsana Penkhrue Chayanard Phukhamsakda Uma Shaanker Ramanan Achala R.Rathnayaka Resurreccion B.Sadaba Birthe Sandargo Binu C.Samarakoon Danushka S.Tennakoon Ramamoorthy Siva Wasan Sriprom T.S.Suryanarayanan Kanaporn Sujarit Nakarin Suwannarach Thitipone Suwunwong Benjarong Thongbai Naritsada Thongklang Deping Wei S.Nuwanthika Wijesinghe Jake Winiski Jiye Yan Erandi Yasanthika Marc Stadler Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of ScienceKunming 650201YunnanPeople’s Republic of China Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand School of Science Mae Fah Luang UniversityChiang Rai 57100Thailand World Agroforestry Centre East and Central AsiaKunming 650201YunnanPeople’s Republic of China Mushroom Research Foundation 128 M.3 Ban Pa Deng T.PaPaeA.Mae TaengChiang Mai 50150Thailand Aix Marseille Université INRAUMR1163 BBF13288 Marseille Cedex 09France Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North China Center of Plant and Environment ProtectionBeijing Academy of Agriculture and Forestry SciencesBeijing 100097People’s Republic of China Center of Chemical Innovation for Sustainability Mae Fah Luang UniversityTasudMuangChiang Rai 57100Thailand Center of Excellence in Microbial Diversity and Sustainable Utilization Faculty of ScienceChiang Mai UniversityChiang Mai 50200Thailand Center for Mountain Ecosystem Studies Kunming Institute of BotanyChinese Academy of SciencesKunming 650201YunnanPeople’s Republic of China Institute of Fungal Research School of Life Science and TechnologyUniversity of Electronic Science and Technology of ChinaChengdu 611731People’s Republic of China Department Microbial Drugs Helmholtz Centre for Infection Researchand German Centre for Infection Research(DZIF)partner site Hannover-BraunschweigInhoffenstrasse 738124 BrunswickGermany Department of Biology Faculty of ScienceChiang Mai UniversityChiang Mai 50200Thailand Department of Chemistry and Biochemistry The Ohio State UniversityColumbusOH 43210USA Department of Chemistry University of Science and TechnologyBannuKhyber PakhtunkhwaPakistan Department of Crop Physiology University of Agricultural SciencesGKVKBengaluruKarnataka 560065India Department of Entomology and Plant Pathology Faculty of AgricultureChiang Mai Univers

Fungi are an understudied,biotechnologically valuable group of *** to the immense range of habitats that fungi inhabit,and the consequent need to compete against a diverse array of other fungi,bacteria,and animals,fungi have developed numerous survival *** unique attributes of fungi thus herald great promise for their application in biotechnology and ***,fungi can be grown with relative ease,making production at scale *** search for fungal biodiversity,and the construction of a living fungi collection,both have incredible economic potential in locating organisms with novel industrial uses that will lead to novel *** manuscript reviews fifty ways in which fungi can potentially be utilized as *** provide notes and examples for each potential exploitation and give examples from our own work and the work of other notable *** also provide a flow chart that can be used to convince funding bodies of the importance of fungi for biotechnological research and as potential *** have provided the world with penicillin,lovastatin,and other globally significant medicines,and they remain an untapped resource with enormous industrial potential.

关键词： Biocontrol Biodiversity Biotechnology Food Fungi Mushrooms

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Ionic Liquids in Extractive Distillation Solvent Selection, Conceptual process design, and Pilot Plant Validation

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Chemie Ingenieur Technik 2013年第9期85卷

作者： A. B. de Haan G. W. Meindersma E. Quijada‐Maldonado M. T. G. Jongmans J. P. Gutiérrez Hernandez B. Schuur Eindhoven University of Technology Department of Chemical Engineering and Chemistry/SPS P.O. Box 513 NL‐5600 MB Eindhoven The Netherlands Santiago University of Chile Av. Libertador Bernardo O'Higgins Santiago Chile AkzoNobel Research Development & Innovation Postbus 10 NL‐7400 AA Deventer The Netherlands University of Twente Faculty of Science and Technology Sustainable Process Technology Group P.O. Box 217 NL‐7500 AE Enschede The Netherlands

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P-nitrophenol degradation by gold nanoparticles augmented cellulosic microcapsules: Influence of catalyst dosage, reaction temperature and kinetic analysis

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AIP Conference Proceedings 2023年 050001页

作者： M. S. Osman S. S. Fadzil K. Khairudin N. A. A. Bashah M. Fathullah N. A. Nasrudin Faculty of Chemical Engineering Universiti Teknologi MARA Cawangan Pulau Pinang 13500 Permatang Pauh Penang Malaysia. Molecular System Design Process & Optimization (MODEPRO) research group Universiti Teknologi MARA Cawangan Pulau Pinang 13500 Permatang Pauh Penang Malaysia. School of Manufacturing Engineering Universiti Malaysia Perlis (UniMAP) Pauh Putra Campus 02600 Arau Perlis Malaysia. Center of Excellence Geopolymer & Green Technology (CEGeoGTech) Universiti Malaysia Perlis (UniMAP) 01000 Kangar Perlis Malaysia.

For the parametric research of P-nitrophenol degradation (PNP) performance, the alginate encapsulating method was used to improve gold nanoparticles using cellulosic microcapsules. The goals are to investigate the gold nanoparticles's kinetic model in the degradation of PNP using UV-Vis spectrometry and to determine the parametric of the effect of AuNP-cellulose catalyst dose on efficiency of its removal and the role of AuNP-cellulose in PNP degradation at a variation of temperatures. The gold nanoparticle was formulated by reducing citrate technique and synthesised with coconut husk cellulose before being transformed into microcapsules and then formed into AuNP-cellulosic microcapsule beads. An excess quantity of sodium borohydride, NaBH4, was used as a model reaction to assess the catalytic performance of AuNPs for the reduction of PNP. The quantities of AuNP-cellulose catalyst have been weighted at 5, 7, and 10 mg for the dose of AuNP-cellulose catalyst on PNP elimination efficiency. With a 10 mg catalyst dose, the maximum PNP removal rate of 96.1 percent is achieved. When AuNP-cellulose reactions in degrading PNP are compared at different temperatures (28°C, 35°C, 45°C, and 55°C), the degradation is quicker at 55°C, taking just 5 minutes. The catalytic system's activation energy (Ea) for PNP degrading into PAP is 13.63 kJ/mol. This research indicates that as the catalyst dose is raised, the removal efficiency improves, and high temperatures accelerate PNP decrease.

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