Results 71 to 80 of about 1,608 (223)

Preparation and Properties of Asphalt Binders Modified by THFS Extracted From Direct Coal Liquefaction Residue

open access: yesApplied Sciences, 2017
This paper aims to study the preparation and viscoelastic properties of asphalt binder modified by tetrahydrofuran soluble fraction (THFS) extracted from direct coal liquefaction residue.
Jie Ji   +7 more
doaj   +1 more source

Research on the construction of a natural gas price index in China

open access: yesEnergy Strategy Reviews, 2020
A natural gas price index (NGPI) can be used by stakeholders to comprehensively evaluate the natural gas market. At present, there is no NGPI to measure the volatility of China's entire natural gas market.
Xinlei Yang   +4 more
doaj   +1 more source

Current Knowledge on Phytoremediation Potential of Industrial Hemp (Cannabis sativa L.) for PFAS and Heavy Metal Contaminated Soils

open access: yesRemediation Journal, Volume 36, Issue 2, Spring 2026.
ABSTRACT This review synthesizes current research on the phytoremediation potential of industrial hemp (Cannabis sativa L.) for heavy metals, including arsenic, aluminium, mercury, copper, lead, cadmium, nickel, and zinc, as well as per‐ and polyfluoroalkyl substances (PFAS), commonly referred to as “forever chemicals.” A structured and transparent ...
Omid Ansari, Luca De Prato
wiley   +1 more source

Investigations into coal coprocessing and coal liquefaction

open access: yes, 1994
The conversion of coal to liquid suitable as feedstock to a petroleum refinery is dependent upon several process variables. These variables include temperature, pressure, coal rank, catalyst type, nature of the feed to the reactor, type of process, etc ...
Zhang, Tiejun   +5 more
core   +1 more source

Engineering Polymeric Membranes for CO₂ Separation: Materials, Fabrication, Challenges, and Future Perspectives

open access: yesCarbon Neutralization, Volume 5, Issue 4, July 2026.
Overview of polymeric and mixed‐matrix membranes for CO₂ separation, highlighting key materials, fabrication techniques, performance challenges, and innovations supporting industrial decarbonization and sustainable development. ABSTRACT Carbon dioxide (CO₂) emissions from anthropogenic sources are major contributors to global warming and climate change,
Muhammad Mansha   +5 more
wiley   +1 more source

Droplets Evaporation Characteristics of Diesel from Direct and Indirect Coal Liquefaction and Their Blends

open access: yesShanghai Jiaotong Daxue xuebao
To study the evaporation characteristics of diesel from direct coal liquefaction (DDCL), diesel from indirect coal liquefaction (DICL), and their blended fuel droplets at different ambient temperatures (500, 600 and 700 ℃), a droplet evaporation test ...
SHEN Yukun, WANG Jigang, QIAO Xinqi
doaj   +1 more source

Hydrogen to Power: Exploring Current Developments and Future Challenges

open access: yesNatural Sciences, Volume 6, Issue 3, July 2026.
As the interest in low‐carbon energy systems grows, hydrogen continues to attract attention as a flexible energy carrier for power applications. Developments in hydrogen production, storage, transport, and utilization are explored. In addition, the deployment challenges of hydrogen energy vector related to economics, infrastructure, safety, and ...
Md. Shafiullah   +6 more
wiley   +1 more source

Novel supports for coal liquefaction catalysts [PDF]

open access: yes, 1992
This research is divided into three parts: (1) Evaluation of Alkaline-Earth-Promoted CoMo/Alumina Catalysts in a Bench Scale Hydrotreater, (2) Development of a Novel Catalytic Coal Liquefaction Microreactor (CCLM) Unit, and (3) Evaluation of Novel ...
Haynes, H. W. Jr., Haynes, H.W. Jr.
core   +1 more source

From Citrus to Cymene: Understanding the Hydrothermal Conversion of Limonene

open access: yesChemSusChem, Volume 19, Issue 11, 15 June 2026.
When life gives you limonene… Hydrothermal conversion and pyrolysis of limonene give two distinct sets of products, arising from differing reaction cascades. While p‐cymene dominates in the presence of water, indicative of an isomerisation/aromatisation pathway, pyrolysis favours cracking and loss of carbon affording an m‐xylene rich aromatic mix.
Jack Steel   +5 more
wiley   +1 more source

Industrization and Studies on Direct Liquefaction of coal

open access: yesJournal of the Fuel Society of Japan, 1976
Industrial processes of coal liquefaction and studies on the direct liquefaction using powder catalysis are reviewed. Influences in the liquifaction on the reaction time, temperature, pressure, catalysis, pasting oils, and elementary components of coal are discussed from the results on the batch expreiments using autoclaves.Relationship between the ...
openaire   +2 more sources

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