Results 91 to 100 of about 495,153 (230)

Lignin Extraction from Various Biomass Sources: A Comprehensive Review of Characteristics, Applications, and Future Prospects

open access: yesThe Chemical Record, EarlyView.
Lignin, a major byproduct of various agricultural waste, plays a key role in advancing a sustainable circular economy. There are several challenges faced during lignin extraction due to its complex structure and strong bond in the lignocellulosic biomass matrix.
Alaa A. Dandash   +2 more
wiley   +1 more source

Numerical simulation of crushed coal pressurized slagging gasification

open access: yes矿业科学学报
The Crushed Coal Pressurized Slagging Gasification (British Gas-Lurgi, BGL) renders the use of gates obsolete and changes from dry slag discharge to liquid slag discharge, significantly improving the gasification performance.
ZHANG Lihe   +5 more
doaj   +1 more source

Low Rank Coal Pre-treatment to Increase Its Reactivity Towards Gasification with Biomass

open access: yesMATEC Web of Conferences, 2018
Coal can be used to produce hydrogen through steam gasification process. Indonesia has abundant coal reserves and thus hydrogen production from coal is very attractive.
Rizkiana Jenny   +4 more
doaj   +1 more source

Comparison of Combustion and Gasification between Crushed and Block Coals in UCG Model Tests

open access: yesJournal of MMIJ, 2018
Small-scale underground coal gasification (UCG) model tests with a linking hole were carried out using two types of specimens made of either block coal or crushed coal to clarify their characteristics of combustion and gasification.
Jun-ichi KODAMA   +7 more
doaj   +1 more source

Epoxidized soybean oil: A sustainable solution to polyvinyl chloride recycling challenges

open access: yesJournal of Vinyl and Additive Technology, EarlyView.
Recycling process and characterization of polyvinyl chloride. Abstract Recycling process of polyvinyl chloride (PVC), a widely used plastic, is important in order to reduce its harmful environmental impacts and contribute to the circular economy. Thermal degradation of PVC during mechanical recycling significantly reduces its final properties and ...
Gülşah Demir, Bedriye Ucpinar
wiley   +1 more source

Clean Coal and Gasification Technology: How it Works? [PDF]

open access: yesActa Montanistica Slovaca, 2006
Gasification of coal is the oldest method for the production of hydrogen. Coal gasification is a process that converts coal from a solid to a gaseous state.
Marina Sidorová, Gabriel Wittenberger
doaj  

Corrosion in coal gasification atmospheres [PDF]

open access: yesLe Journal de Physique IV, 1993
Corrosion of metallic materials by coal gasification atmospheres has been the subject of extensive study for over 20 years. While many alloys were found to be resistant to attack by high moisture content gases representative of fluidized bed gasifiers at temperatures up to 900 °C, good resistance could not be sustained for more than a few thousand ...
openaire   +3 more sources

Chemical Feedstock Recovery Through Plastic Pyrolysis: Challenges and Perspectives Toward a Circular Economy

open access: yesChemSusChem, Volume 18, Issue 16, August 6, 2025.
This review examines the progress and challenges of lab‐scale pyrolytic liquefaction, trends in industrial‐scale projects, and the gap between these technologies, proposing a future research direction for plastic pyrolysis to advance the transition to a circular economy.
Shogo Kumagai   +4 more
wiley   +1 more source

Coal gasification: a materials review [PDF]

open access: yes, 1976
The development of sulfidation resistant alloys for coal conversion will require closely coupled pilot plant operations and laboratory investigation to meet current US energy goals in a timely fashion. A review of existing information regarding sulfidation damage in other commercial systems and experimental studies suggest that aluminum, molybdenum ...
openaire   +2 more sources

Catalytic Approaches for CO2 Conversion to Value‐Added Products: An Overview of Life Cycle Assessment Studies

open access: yesAdvanced Energy and Sustainability Research, Volume 6, Issue 8, August 2025.
The catalytic conversion of CO2 into value‐added products provides an emerging strategy for reducing carbon emissions and improving environmental performance. This review compares different Life Cycle Assessment studies to evaluate the environmental impacts of CO2 conversion, focusing on the main challenges, technical limitations, and potential ...
Anastasia Pappa   +3 more
wiley   +1 more source

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