Results 31 to 40 of about 4,338 (196)

Challenges and enablers in fluidization technology

AIChE Journal, EarlyView.
Abstract Gas–solid fluidized beds provide excellent heat and mass transfer for high‐throughput operations from coating to catalytic conversion and underpin emerging low‐carbon technologies. Yet industrial reliability, scale‐up, and control lag scientific understanding, particularly as finer, stickier, and more variable feedstocks increasingly challenge
J. Ruud van Ommen, Jia Wei Chew
wiley   +1 more source

Determination of the Technological Parameters of Borehole Underground Coal Gasification for Thin Coal Seams

Journal of Sustainable Mining, 2013
In this article the characteristics of the criteria of borehole underground coal gasification for thin coal seams are defined. The thermal and material balance calculations for coal seam gasification processes are also explained. The construction, method
Volodymyr S. Falshtynskyi, Roman O. Dychkovskyi, Vasyl G. Lozynskyi, Pavlo B. Saik   +3 more
doaj   +1 more source

Study on activity characteristics of modified coal gasification coarse slag and its hydration hardening properties of blended cement paste

矿业科学学报, 2022
The large-scale application of coal gasification technology produces a large amount of coal gasification slag that is difficult to handle. As a kind of coal gasification ash rich in aluminosilicate minerals, coal gasification coarse slag has the ...
Wang Dongmin, Fang Kuizhen, Zhang Ming
doaj   +1 more source

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

AIChE 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, Haifeng Qi, Kun Lei, Tingwei Wang, Yijie Yang, Hongwei Li, Rongjun Zhang, Yu Wu, Canran Huang, Zhao Sun   +9 more
wiley   +1 more source

Large-scale Experimental Investigations to Evaluate the Feasibility of Producing Methane-Rich Gas (SNG) through Underground Coal Gasification Process. Effect of Coal Rank and Gasification Pressure

Energies, 2020
An experimental campaign on the methane-oriented underground coal gasification (UCG) process was carried out in a large-scale laboratory installation.
Krzysztof Kapusta, Marian Wiatowski, Krzysztof Stańczyk, Renato Zagorščak, Hywel Rhys Thomas   +4 more
doaj   +1 more source

Large-Scale Experimental Simulations of In Situ Coal Gasification in Terms of Process Efficiency and Physicochemical Properties of Process By-Products

Energies, 2023
This paper presents a series of surface experiments simulating underground coal gasification (UCG). The main goal of the experiments was to investigate the influence of the gasification medium and the coal rank on the gasification process. Four multi-day
Marian Wiatowski, Krzysztof Kapusta, Aleksandra Strugała-Wilczek, Krzysztof Stańczyk, Alberto Castro-Muñiz, Fabián Suárez-García, Juan Ignacio Paredes   +6 more
doaj   +1 more source

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

Asia-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, Tuo Zhou, Hao Xie, Jinjiang Zhao, Man Zhang, Hairui Yang   +5 more
wiley   +1 more source

Advancements in CO2 Capture Technologies: A Review of Amine Absorption and Alternative Methods for Post‐Combustion Integration

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Carbon capture technologies are poised to become one of the primary focuses regarding the achievement of net‐zero emissions by the year 2050. In these technologies, particular attention is given to post‐combustion CO2 capture, which is more easily implemented at existing power stations and other industries.
Satyajit Mukherjee, Ashish Kumar, Mayurkumar P. Patil, Rohit B. Meshram   +3 more
wiley   +1 more source

Catalytic Pyrolysis of Waste Polystyrene Over Fe–B Composite Catalyst for Enhanced Liquid Fuel Production

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Healthcare derived polystyrene waste represents a growing and under addressed fraction of plastic waste streams due to contamination risks and limited recyclability. This study aims to investigate the valorization of waste polystyrene foam through catalytic and noncatalytic pyrolysis pathways to evaluate product yield distribution and identify
Salman Khan, Zahid Hussain, Bilal Ahmad, Naveed Ahmad, Shohreh Azizi   +4 more
wiley   +1 more source

Circular Economy‐Driven Cs/Sg/MGNPs/AC Composite for Efficient Methylene Blue Removal and Subsequent Valorization as a Urea Oxidation Electrocatalyst

Journal of Applied Polymer Science, EarlyView.
This image is a graphical abstract for outlining the synthesis, characterization, and application of a novel composite material designed to remove toxic pollutants (specifically Methylene Blue dye; MB) from water, and its subsequent use in electrochemical applications.
Rehab Mahmoud, Lina M. Alneghery, Ahmed Abdelazim Khalifa, Marwa H. Shemy, Ahmed A. Allam, Saber A. A. Elsuccary, Samar M. Mahgoub   +6 more
wiley   +1 more source