Results 31 to 40 of about 714 (185)

A Review of the Unintended Consequences of Biochar in Various Applications

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 5, May 2026.
Biochar is widely promoted as a sustainable material for applications ranging from soil amendment to energy storage and construction materials. This review critically examines the often‐overlooked and unintended consequences of biochar, including variability in properties, safety risks, and performance limitations.
Singaravelu Vivekanandhan   +14 more
wiley   +1 more source

Study on CRIP process of underground coal gasification coupled with high-power microwave heating

open access: yesMeitan kexue jishu
The Controlled Retraction Injection Point (CRIP) process of underground coal gasification can mine in situ medium-deep coal resources efficiently and transform rich coal resources in China into strategic and scarce gas resources.
Tengze GE   +7 more
doaj   +1 more source

Comparison of Tar Samples from Reaction Zone and Outlet in Ex-Situ Underground Coal Gasification Experiment

open access: yesEnergies, 2021
Tar remaining in the gasification cavity during underground coal gasification (UCG) is an important pollution source, while the reported studies only focus on the tar behavior at the outlet.
Lele Feng   +3 more
doaj   +1 more source

Technobiological Pathways for High‐CO₂ Capture Using Micro‐/Macroalgae: Genetic Engineering, Process Automation, and Value‐Added Bioproducts

open access: yesAsia-Pacific Journal of Chemical Engineering, Volume 21, Issue 3, May/June 2026.
ABSTRACT Greenhouse gas (GHG) emissions have emerged as one of the most critical drivers of climate change; this is primarily due to high concentrations and long atmospheric life of carbon dioxide (CO2). For a significant amount of time, various biological processes such as microalgal cultivation, cyanobacterial systems, photosynthetic microorganisms ...
Sadhana Semwal, Harish Chandra Joshi
wiley   +1 more source

Modeling and Control of Energy Conversion during Underground Coal Gasification Process

open access: yesEnergies, 2022
The underground coal gasification (UCG) technology is an unconventional method of coal mining, and its approaches represent new scientific knowledge [...]
Marek Laciak, Ján Kačur, Milan Durdán
doaj   +1 more source

Automated Spectral Deconvolution for Quantitative Dye Tracing

open access: yesWater Resources Research, Volume 62, Issue 5, May 2026.
Abstract Dye tracing using fluorescent dyes is an essential tool for investigating flow path distribution, conduit networks, and connectivity in complex hydrogeologic systems, such as karst and fractured aquifers. The breakthrough curve, derived from the dye concentration measured at a downstream location with near‐continuous time resolution, provides ...
Fabian Quichimbo‐Miguitama   +5 more
wiley   +1 more source

Catalytic pyrolysis characteristics of simulated seawater in lean coal

open access: yes矿业科学学报, 2020
In the underground catalytic gasification process of lean coal, the solid catalyst cannot be used and recovered, so it is necessary to develop an inexpensive liquid catalyst.In order to explore the feasibility of seawater as a cheap gasification agent ...
Sun Rui   +4 more
doaj   +1 more source

Investigation of Underground Coal Gasification in Laboratory Conditions: A Review of Recent Research

open access: yesEnergies, 2023
The underground coal gasification (UCG) technology converts coal into product gas and provides the option of environmentally and economically attractive coal mining. Obtained syngas can be used for heating, electricity, or chemical production.
Ján Kačur   +3 more
doaj   +1 more source

Underground Gasification of Coal

open access: yesJournal of the Fuel Society of Japan, 1956
国連技術援助局(TAA)が日本において地下ガス化試験を実施するかどうか注目の的となつている折柄地下ガス化の目的と歴史と方法について大要を述べた特に日本と事情の似ている英国の地下ガス化試験を主としてガス化方法の発達を述べた。
openaire   +2 more sources

Modelling Underground Coal Gasification—A Review [PDF]

open access: yesEnergies, 2015
The technical feasibility of underground coal gasification (UCG) has been established through many field trials and laboratory-scale experiments over the past decades. However, the UCG is site specific and the commercialization of UCG is being hindered due to the lack of complete information for a specific site of operation. Since conducting UCG trials
Md M. Khan   +5 more
openaire   +2 more sources

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