Article
Green & Sustainable Science & Technology
Andre Bolt, Ibrahim Dincer, Martin Agelin-Chaab
Summary: This study presents a novel multigeneration system that combines solar and wind energy to store thermal energy, capture carbon dioxide emissions from steel production, and produce electricity, space heating, methane, hydrogen gas, and freshwater. The system demonstrates high energy and exergy efficiencies.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Energy & Fuels
Ederson Osorio-Restrepo, Michael Canon-Alvarado, Carlos E. Daza
Summary: The effect of Ce on Ni/Ca-Al catalysts for CO2 methanation prepared by coprecipitation was investigated. Ce promotion resulted in an increase in catalytic conversion, attributed to the decrease in the Ni(0) particle size and the enhancement of surface carbonate species formation. The catalysts showed exceptional activity at low temperatures and high stability without the formation of CO or coke, highlighting the potential of Ce-promoted Ni/Ca-Al catalysts for CO2 methanation.
Article
Energy & Fuels
Andre Bolt, Ibrahim Dincer, Martin Agelin-Chaab
Summary: New designs of helical methane/natural gas reactors are proposed in this study, which utilize the Sabatier reaction for renewable production of methane. The study develops three models with different diameters and the same volume, and suggests optimizing the reactor design by varying specific parameters. The reactor model with a diameter of 0.0381 m achieves a reactant conversion of 75% and a yield of 87%, while the model with a cross-sectional diameter of 0.0254 m demonstrates the most effective cooling at a coolant temperature of 200 degrees C.
Article
Green & Sustainable Science & Technology
Andre Bolt, Ibrahim Dincer, Martin Agelin-Chaab
Summary: The article presents a new and unique multigeneration system design that extracts carbon dioxide from cement production to produce methane/natural gas. Hydrogen gas is generated through electrolysis supported by hydroelectric power, and a portion is used to produce methane. Other outputs include electricity, space heating, and hot water. The system also utilizes solar energy. The system achieved hydrogen and methane production rates of 0.01028 kgs-1 and 0.02045 kgs-1, respectively, with exergy and energy efficiencies of 44.5% and 77.5%.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Geochemistry & Geophysics
Xiangxian Ma, Bei Liu, Corey Brazell, Maria Mastalerz, Agnieszka Drobniak, Arndt Schimmelmann
Summary: This study provides experimental evidence for geocatalytically mediated methanogenesis in immature to early mature shale and coal source rocks at temperatures from 80 to 120 degrees C over a long-term period. The research shows varying propensities of different shales and coals to generate methane and carbon dioxide, with higher temperatures enhancing catalytic methanogenesis activities.
ORGANIC GEOCHEMISTRY
(2021)
Article
Chemistry, Physical
Ashley Caiola, Brandon Robinson, Siobhan Brown, Xiaoyan Wang, Yuxin Wang, Jianli Hu
Summary: This study compared the effects of conventional thermal heating and microwave heating on the oxidative dehydrogenation of ethane with CO2 as a co-reactant over 2%Ga/ZSM-5 and 1.5%Ga0.5%Pt/ZSM-5 catalysts. Microwave heating showed similar ethane conversion to thermally heated catalysts at 450 degrees C compared to 650 degrees C. The bimetallic GaPt/ZSM-5 performed better than Ga/ZSM-5. Microwave heating resulted in lower production rates of carbon monoxide and water compared to thermal heating, suggesting that microwave heating is less favorable for the water gas shift reaction. This study found that microwave heating increased ethane conversion and selectivity to ethylene.
CATALYSIS COMMUNICATIONS
(2023)
Article
Green & Sustainable Science & Technology
A. R. C. Labanca, A. G. Cunha, R. P. Ribeiro, C. G. Zucolotto, M. B. Cevolani, M. A. Schettino Jr
Summary: The biggest challenge in the energy sector today is the transition from fossil fuel to sustainable energy sources. A new plasma reformer technology has been proposed for CO2-free H2 production from natural gas or biogas, supporting the production of decentralized hydrogen for fuel cell electric vehicles.
Article
Chemistry, Physical
Bin Wang, Xin Zhang, Hongliang Huang, Zhangjing Zhang, Taner Yildirim, Wei Zhou, Shengchang Xiang, Banglin Chen
Summary: BUT-22 is a microporous aluminum-based MOF with high storage capacities for methane, hydrogen, and carbon dioxide, showing excellent performance under different conditions.
Article
Engineering, Environmental
Sakineh Tavakkoli, Leyang Feng, Scot M. Miller, Sarah M. Jordaan
Summary: This study finds that recent efficiency improvements in gas-fired electricity generation make it a lower emissions option compared to coal, despite uncertainties in supply chain emissions.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Review
Energy & Fuels
Nasiru Salahu Muhammed, Md Bashirul Haq, Dhafer Abdullah Al Shehri, Amir Al-Ahmed, Mohammad Mizanur Rahman, Ehsan Zaman, Stefan Iglauer
Summary: The future of hydrogen depends on large-scale storage, which can be provided by geological formations. Depleted natural gas reservoirs are the most cost-effective and secure solutions, but there is a lack of thorough understanding of this technology. This work aims to provide a comprehensive insight into hydrogen storage in depleted gas reservoirs.
Article
Chemistry, Physical
Navid Saeidi, Derek Dunn-Rankin, Bjorn Kvamme, Yu-Chien Chien
Summary: The research investigates the dynamic rate limiting steps in the dissociation of methane hydrates and the formation of CO2 hydrates, with results suggesting that CO2 injection and substitution can effectively and environmentally sensitively produce hydrates. Different experimental conditions show that the addition of N-2 can increase CH4 release, but pure CO2 injection alone cannot generate effective hydrate substitution.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Analytical
Dmitry Petrov, Ivan Matrosov
Summary: In this study, a technique for natural gas analysis based on polarized Raman spectroscopy is presented. By using only the isotropic components of spectra, the procedure for extracting concentrations is simplified and the measurement accuracy is improved for components with spectral overlap. This technique is of great importance in the analysis of multicomponent gas mixtures and the measurement of isotopic composition.
ANALYTICAL CHEMISTRY
(2023)
Article
Green & Sustainable Science & Technology
Xuewen Cao, Dan Guo, Wenjuan Sun, Pan Zhang, Gaoya Ding, Jiang Bian
Summary: A cleaner method for removing CO2 and H2S from highly acidic natural gas was proposed using supersonic separation technology. Experimental results demonstrated good separation performance.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Physical
Andrzej Goldasz, Dominika Matuszewska, Piotr Olczak
Summary: The paper presents a technical, economic, and environmental analysis of a chamber furnace used for pre-forging heat. The results show improvements in energy efficiency after modernization, as well as the impact of different variants. The study also highlights the significant influence of gas and hydrogen co-combustion options on net present value and the advantage of using 100% hydrogen fuel in reducing CO2 emissions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Alberto Maria Gambelli, Yan Li, Federico Rossi
Summary: This study investigates the thermodynamic and kinetic features of the methane replacement process using CO2-N-2 mixed gas. The results show that the conditions for hydrate formation in the mixed gas are gentler, with the lowest concentration of CO2 in the gaseous phase at a 50% CO2 concentration. The capture rate of N-2 and CO2 increases with decreasing N-2 concentration.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Chemistry, Applied
Xuan Hoan Vu, Thanh Tam Truong, Udo Armbruster
JOURNAL OF POROUS MATERIALS
(2019)
Article
Chemistry, Physical
Ahmed S. Al-Fatesh, Hanan Atia, Jehad K. Abu-Dahrieh, Ahmed A. Ibrahim, Reinhard Eckelt, Udo Armbruster, Ahmed E. Abasaeed, Anis H. Fakeeha
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Applied
Quan Luu Manh Ha, Udo Armbruster, Carsten Kreyenschulte, Hanan Atia, Henrik Lund, Huyen Thanh Vuong, Sebastian Wohlrab
Article
Engineering, Chemical
Anis Hamza Fakeeha, Yasir Arafat, Ahmed Aidid Ibrahim, Hamid Shaikh, Hanan Atia, Ahmed Elhag Abasaeed, Udo Armbruster, Ahmed Sadeq Al-Fatesh
Editorial Material
Chemistry, Physical
Andre V. -H. Soares, Sumeet S. Kale, Udo Armbruster, Fabio B. Passos, Shubhangi B. Umbarkar, Mohan K. Dongare, Andreas Martin
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
(2019)
Article
Chemistry, Physical
Quan Luu Manh Ha, Henrik Lund, Carsten Kreyenschulte, Stephan Bartling, Hanan Atia, Than Huyen Vuong, Sebastian Wohlrab, Udo Armbruster
Article
Nanoscience & Nanotechnology
Owen C. Ernst, Felix Lange, David Uebel, Thomas Teubner, Torsten Boeck
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
(2020)
Article
Nanoscience & Nanotechnology
Felix Lange, Owen Ernst, Thomas Teubner, Carsten Richter, Martin Schmidbauer, Oliver Skibitzki, Thomas Schroeder, Peer Schmidt, Torsten Boeck
Article
Chemistry, Physical
Jawaher Mosrati, Hanan Atia, Reinhard Eckelt, Thanh Huyen Vuong, Jabor Rabeah, Mourad Mhamdi, Udo Armbruster
Summary: NOx reduction using NH3-SCR technology is an efficient method for reducing nitrogen oxide emissions, and the Mo5/Ce40/Ti100 (SG) catalyst supported on ceria-titania shows excellent performance at low temperatures, achieving high NOx conversion rates and N-2 selectivity.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Applied
Nils Ortner, Henrik Lund, Udo Armbruster, Sebastian Wohlrab, Evgenii Kondratenko
Summary: The effects of metal oxide promoter and InOx on catalyst activity and product selectivity in the CO2 hydrogenation to methanol reaction were investigated. The promoters influenced the rates of direct CO2 conversion and methanol decomposition by affecting the dispersion of CuOx and the strength of basic sites for CO2 adsorption.
Article
Energy & Fuels
Quan Luu Manh Ha, Hanan Atia, Carsten Kreyenschulte, Henrik Lund, Stephan Bartling, Grzegorz Lisak, Sebastian Wohlrab, Udo Armbruster
Summary: This study achieved efficient reforming of biogas using low Ni loading catalysts modified with Gd, Sc, or La. Sc and Gd modifications showed enhanced stability and resistance to coking in DRM reactions with methane-rich gases. Gd-modified catalysts demonstrated minimal increase in coke deposition even after extended operation time.
Review
Chemistry, Physical
Selina Niess, Udo Armbruster, Sebastian Dietrich, Marco Klemm
Summary: Direct biogas methanation faces challenges regarding the influence of high methane content on the reaction and overall efficiency, as well as improving the resistance of catalysts to sulfur-containing compounds. Materials with two active metals and binary oxide support seem to offer technically applicable solutions for these challenges.
Article
Energy & Fuels
Kristian Melin, Jan Ole Struven, Patrick Eidam, Jorn Appelt, Christin Hummel, Udo Armbruster, Yann Chapelliere, Claude Mirodatos, Yves Schuurman, Anja Oasmaa
Summary: A new route for upgrading black liquor from the kraft process to hybrid gasoline is presented. The process involves hydrothermal liquefaction, removal of alkaline metal salts, hydro-deoxygenation, and coprocessing with vacuum gas oil. High deoxygenation is beneficial for cracking the refined crude oil into gasoline fractions. By limiting the percentage of added pretreated biocrude, high naphtha yields can be maintained.
Article
Chemistry, Physical
Owen C. Ernst, David Uebel, Stefan Kayser, Felix Lange, Thomas Teubner, Torsten Boeck
Summary: The study reveals different states of dewetting and emphasizes on the boundaries between these states. The temperature during nanosecond pulses and the duration for which the metal remains liquid were determined by simulation. The results show a close relationship between the structures induced by laser and those from thermal annealing.
APPLIED SURFACE SCIENCE ADVANCES
(2021)
Article
Chemistry, Multidisciplinary
Felix Lange, Owen C. Ernst, Thomas Teubner, Torsten Boeck
