Results 61 to 70 of about 23,817 (267)

Migration and Transformation of Vanadium and Nickel in High Sulfur Petroleum Coke during Gasification Processes

Energies, 2018
The volatilization characteristics and occurrence forms of V and Ni in petroleum coke (petcoke) were investigated during steam (H2O) and carbon dioxide (CO2) gasification on a fixed bed reactor at 800–1100 °C.
Wei Li, Ben Wang, Jun Nie, Wu Yang, Linlin Xu, Lushi Sun   +5 more
doaj   +1 more source

Phosphorylation of Milkweed Fibers With a Phosphate Ester: Effect on Fiber Properties and Optimization of Reaction Conditions

Journal of Applied Polymer Science, EarlyView.
The phosphorylation of milkweed fibers using the phosphate ester/urea system was optimized. The impact of reaction temperature, duration, and phosphate ester ratio on the efficiency of phosphorylation was investigated using the design of experiments approach.
Ahmed Azrrar, François Brouillette, Zahahe Oulame Mouandhoime, Saïd Elkoun, Mathieu Robert   +4 more
wiley   +1 more source

Effect mechanism of phosphorous-containing additives on carbon structure evolution and biochar stability enhancement

Biochar
The regulation of the pyrolysis process is a key step in increasing the carbon sequestration capacity of biochar. The effect of K3PO4 addition on the yield, chemical composition, characteristic functional groups, macromolecular skeleton, graphite ...
Haiping Yang, Yamian Yu, Han Zhang, Wanwan Wang, Jinjiao Zhu, Yingquan Chen, Shihong Zhang, Hanping Chen   +7 more
doaj   +1 more source

Exploration of Physical Properties of Sodium‐Based Perovskite Hydrides ANaH3 (A = Hf, Nb, Pd, Ru) for Hydrogen Storage Applications: First Principles Study

Advanced Physics Research, EarlyView.
First‐principles calculations reveal that ANaH3 (where A = Hf, Nb, Pd, Ru) perovskite hydrides combine structural stability, favorable electronic properties, and low hydrogen desorption temperatures (280–369 K). Strong metal–hydrogen interactions and reversible hydrogen storage characteristics identify these materials as promising candidates for ...
Fikadu Takele Geldasa, Francis Birhanu Dejene   +1 more
wiley   +1 more source

Understanding the Poisoning Mechanisms of Na2O and NaCl on CuO/Al2O3 Catalysts: Toluene Oxidation Performance and Reaction Pathways

CleanMat
Cu‐based catalysts have been extensively adopted for catalytic oxidation of volatile organic compounds (VOCs). Nevertheless, the poisoning effect of alkali metals over Cu‐based catalysts has received insufficient consideration despite that alkali metals ...
Yue Lyu, Sheng Chen, Shuang Wang
doaj   +1 more source

Combined effect of increasing the post‐reformer temperature and adding red mud as a secondary catalyst in the thermocatalytic reforming of digestate

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract This work studies the combined effect of increasing the post‐reformer temperature and introducing red mud as a support catalyst in the thermocatalytic reforming (TCR®) of digestate. The TCR® method, developed by the Fraunhofer Institute for Environmental, Safety and Energy Technology UMSICHT (abbreviated as Fraunhofer UMSICHT), is an extension
Hillary Onyishi, Johannes Neidel, Robert Daschner, Andreas Apfelbacher, Andreas Hornung   +4 more
wiley   +1 more source

Kinetics Investigation of Copper Ore Oxygen Carrier for Chemical Looping Combustion

Fire
Chemical looping combustion (CLC) has been validated as one of the most promising technologies for fossil fuel combustion, which can produce high-purity CO2 streams ready for capture and sequestration in power production.
Xin Tian, Mingze Su, Haibo Zhao
doaj   +1 more source

Potential contribution of biomass gasification‐based technology in energy transition: a technical review coupled with bibliometric studies

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Biomass gasification technology has been extensively researched around the world; however, there is a need to evaluate the current research landscape and evolutionary direction of research in the broader context of energy transition. A systematic bibliometric analysis of the Web of Science database was performed for articles that fall within ...
Olasunkanmi Opeoluwa Adeoye, Electo Eduardo Silva Lora, Rubenildo Vieira Andrade, Leonardo Peña Pupo, René Lesme Jaén, Osvaldo José Venturini   +5 more
wiley   +1 more source

Analysis of Influence of Flue Gas Recirculation on Thermodynamic Performance and Economic Efficiency of 125 MW Supercritical CO2 Coal-Fired Power Generation Unit

发电技术
ObjectivesFlue gas recirculation (FGR) can effectively mitigate the issue of high furnace wall temperature in supercritical carbon dioxide (S-CO2) boilers.
CHEN Jing, LIU Hui, ZHU Meng, WANG Can, CHEN Lei, ZHOU Jing, XU Kai, JIANG Long, HU Song, XIANG Jun   +9 more
doaj   +1 more source

Revisiting the Carbon Footprint of Single‐Use Technologies in Biomanufacturing: A Bottom‐Up Analysis Reveals a Paradigm Shift

Biotechnology and Bioengineering, EarlyView.
ABSTRACT The biopharmaceutical industry increasingly relies on single‐use technologies (SUT) for operational flexibility. For a long time, SUT was considered more sustainable than stainless‐steel (SST) systems due to water and energy savings. This study re‐evaluates this paradigm via a detailed bottom‐up analysis of the SUT carbon footprint at the 2000 
Jan Reiners, Katharina Bruno‐Thakur, Daina Romeo, Weronika Kuśmierczyk, Ferdinand Stückler   +4 more
wiley   +1 more source