Results 51 to 60 of about 44,976 (294)

Perimeter‐intensified inverse Zr‐Co oxygen carrier for biomass chemical‐looping gasification with high CO selectivity

open access: yesAIChE Journal, EarlyView.
Abstract Chemical‐looping gasification (CLG) offers a promising route for renewable biomass valorization, yet conventional oxygen carrier regeneration with O₂/H₂O is energy‐intensive and often produces low‐quality syngas. Here, we develop an inverse ZrO2/Co3O4 oxygen carrier that enables selective biochar oxidation and efficient lattice‐oxygen transfer
Junling Gao   +9 more
wiley   +1 more source

Yields from pyrolysis of refinery residue using a batch process

open access: yesSouth African Journal of Chemical Engineering, 2017
Batch pyrolysis was a valuable process of assessing the potential of recovering and characterising products from hazardous waste materials. This research explored the pyrolysis of hydrocarbon-rich refinery residue, from crude oil processes, in a 1200 L ...
S. Prithiraj, S. Kauchali
doaj   +1 more source

Automated generative process synthesis via transformer‐based dual‐loop simulation and optimization

open access: yesAIChE Journal, EarlyView.
Abstract This study presents a novel framework for automated generative process synthesis, addressing the complexity of simultaneously optimizing discrete topologies and continuous operating variables. To overcome conventional superstructure limitations, we propose a dual‐loop architecture integrating generative transformers with rigorous process ...
Yeong Woo Son   +4 more
wiley   +1 more source

Gaseificação de biochars de bagaço de maça e de borra de café com CO2: estudo cinético [PDF]

open access: yes, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Química, Florianópolis, 2013.A gaseificação de resíduos agroindustriais tem sido apontada como uma alternativa viável de geração ...
Pacioni, Tatiana Ramos
core  

Detailed gasification process of woody biomass-derived char with H2O and CO2 gasifying agents

open access: yesJournal of Thermal Science and Technology, 2020
To effectively utilize renewable biomass resources, gasification technology is being actively developed. Many studies have been performed regarding the gasification of biomass-derived char (i.e., biochar), where the gasification rate varies greatly with ...
Yukihiko OKUMURA
doaj   +1 more source

The prospects for coal gasification [PDF]

open access: yes, 1980
The prospects for coal gasification are considered in the light of ever increasing problems of high prices and uncertain supplies of fossil fuels throughout the world. A detailed analysis of the supply and demand for coal and gas in Britain now and in the next decade is an essential part of this work.
openaire   +1 more source

Hydrothermal gasification of sorbitol: H2 optimisation at high carbon gasification efficiencies

open access: yesChemical Engineering Journal, 2019
Using both experiments and modelling, hydrothermal gasification of sorbitol (SB) aiming at maximal carbon to gas conversion and H2 production was investigated over a wide temperature range (270–350 °C). Kinetics were studied in a continuous tubular reactor using a Pt/γ-Al2O3 catalyst.
Paida, V. R.   +2 more
openaire   +2 more sources

Thermodynamic Model of a Very High Efficiency Power Plant based on a Biomass Gasifier, SOFCs, and a Gas Turbine [PDF]

open access: yes, 2012
Thermodynamic calculations with a power plant based on a biomass gasifier, SOFCs and a gas turbine are presented. The SOFC anode off-gas which mainly consists of steam and carbon dioxides used as a gasifying agent leading to an allothermal gasification ...
B., Türker,   +3 more
core  

The Effect of Sintering Flue Gas Composition on NO Reduction in Coke

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The strategy of substituting combustion air with sintering flue gas in circulating fluidized bed (CFB) systems provides a low‐cost and highly efficient approach for the purification of sintering off‐gas. In this work, coke was employed as the reducing agent, and a high‐temperature vertical tube furnace was used to simulate the dense‐phase ...
Canbin Huang   +5 more
wiley   +1 more source

Activated Carbon Prepared from Rose Branch using H3PO4- hydrothermal Carbonization and Activation and its Apllication for Supercapacitors

open access: yesInternational Journal of Electrochemical Science, 2019
Charcoals of rose branch were prepared by the three different carbonization treatments: phosphoric acid hydrothermal method, traditional hydrothermal method and pyrolysis.
Hongyu Si   +8 more
doaj   +1 more source

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