Results 21 to 30 of about 9,199,116 (242)

Evaluation of the Heat Produced by the Hydrothermal Liquefaction of Wet Food Processing Residues and Model Compounds

ChemEngineering, 2022
Hydrothermal liquefaction has proven itself as a promising pathway to the valorisation of low-value wet food residues. The chemistry is complex and many questions remain about the underlying mechanism of the transformation. Little is known about the heat
Morgane Briand, Geert Haarlemmer, Anne Roubaud, Pascal Fongarland   +3 more
doaj   +1 more source

Unveiling the Origin of the Selectivity and the Molecular Mechanism in the [3+2] Cycloaddition Reaction of N-aryl-C-carbamoylnitrone with N-arylitaconimide

Organics, 2022
The [3+2] cycloaddition reaction of N-aryl-C-carbamoylnitrone (nitrone 1) with N-arylitaconimide (ethylene 2) was computationally studied using the B3LYP/6-31G(d) level of theory. An analysis of the different energetic profiles and the transition states’
Abdelmalek Khorief Nacereddine, Fouad Chafaa   +1 more
doaj   +1 more source

Wave-modified Mean Exothermic Heating in the Mesopause Region [PDF]

, 1994
We employ a model of wave-driven OH nightglow fluctuations to calculate the effects of gravity waves on the chemical exothermic heating due to reactions involving odd hydrogen and odd oxygen species in the mesopause region.
Walterscheid, R. L., Hickey, Michael P., Ph.D.   +1 more
core   +1 more source

Impact of Newtonian heating and Fourier and Fick’s laws on a magnetohydrodynamic dusty Casson nanofluid flow with variable heat source/sink over a stretching cylinder

Scientific Reports, 2021
The present investigation aims to deliberate the magnetohydrodynamic (MHD) dusty Casson nanofluid with variable heat source/sink and modified Fourier’s and Fick’s laws over a stretching cylinder.
Muhammad Ramzan, Naila Shaheen, Jae Dong Chung, Seifedine Kadry, Yu-Ming Chu, Fares Howari   +5 more
doaj   +1 more source

Effect of gas on microstructure and thermal reactivity of coal during low temperature oxidation

Meitan kexue jishu, 2023
In order to investigate the microscopic physicochemical properties and macroscopic coal-oxygen complex thermal effects in the low-temperature oxidation of coal under gas atmosphere, different metamorphic coal and secondary oxidized coal samples as ...
DENG Jun, ZHOU Jiamin, BAI Zujin, LIU Le, WANG Caiping   +4 more
doaj   +1 more source

Significance of variable electrical conductivity on non-Newtonian fluid flow between two vertical plates in the coexistence of Arrhenius energy and exothermic chemical reaction

Partial Differential Equations in Applied Mathematics, 2021
The present study is designed to model the combustible materials of two vertical plates with Arrhenius energy and exothermic chemical reaction. The magnetohydrodynamics fluid is considered to experience an exothermic chemical reaction inside the channel.
Adebowale Martins Obalalu, Olusegun Adebayo Ajala, Adeshina Taofeeq Adeosun, Akintayo Oladimeji Akindele, Olayinka Akeem Oladapo, Olatunbosun Akintayo Olajide, Adegbite Peter   +6 more
doaj   +1 more source

Heat exchanger/reactors (HEX reactors): Concepts, technologies: State-of-the-art [PDF]

, 2008
Process intensification is a chemical engineering field which has truly emerged in the past few years and is currently rapidly growing. It consists in looking for safer operating conditions, lower waste in terms of costs and energy and higher ...
Cabassud, Michel, Anxionnaz-Minvielle, Zoé, Tochon, Patrice, Gourdon, Christophe   +3 more
core   +1 more source

METHANOL STEAM REFORMING FOR HYDROGEN PRODUCTION IN MICROCHANNEL REACTORS

Chemical Engineering Journal Storage, 2022
Many attempts have been made to improve heat transfer for thermally integrated microchannel reforming reactors. However, the mechanisms for the effects of design factors on heat transfer characteristics are still not fully understood.
Junjie Chen
doaj   +1 more source

Exothermic isospin-violating dark matter after SuperCDMS and CDEX [PDF]

, 2015
We show that exothermic isospin-violating dark matter (IVDM) can make the results of the latest CDMS-Si experiment consistent with recent null experiments, such as XENON10, XENON100, LUX, CDEX, and SuperCDMS, whereas for the CoGeNT experiment, a strong ...
Chen, Nan, Zhao, Wei, Shin-Ted Lin, Nan Chen, Wei Zhao, Lin, Shin-Ted, Yue, Qian, Li, Jin, Wang, Qing, Qing Wang, Jin Li, Qian Yue   +11 more
core   +1 more source

Evolution characteristics of key groups of coal oxidation exotherm and their thermal effects under oxygen-depleted condition

Meitan xuebao
In order to investigate the evolution characteristics of the key groups and their thermal effects under the effect of oxygen-depleted, the thermal reaction process of coal under different oxygen concentrations and the change law of its microscopic groups
Yuanbo ZHANG, Yutao ZHANG, Jun DENG, Yaqing LI, Xueqiang SHI, Xiaofang REN   +5 more
doaj   +1 more source