Results 81 to 90 of about 8,840 (206)

Effect of ultrasound treatment on Guntur Sannam chilli (Capsicum annum var. longum): Capsaicinoids recovery and profiling, phytochemical screening, and structural characterization of residue

open access: yesFood Biomacromolecules, Volume 2, Issue 4, Page 531-542, December 2025.
Ultrasound‐Assisted Extraction (UAE) optimized using Box‐Behnken Design (BBD) effectively extracted bioactive compounds from Guntur Sannam Chilli, maximizing yields of capsaicin, dihydrocapsaicin, phenolics, and antioxidants under specific conditions.
Arige Nikhil Swaraj   +2 more
wiley   +1 more source

Green Diesel Production over Nickel-Alumina Nanostructured Catalysts Promoted by Copper

open access: yesEnergies, 2020
A series of nickel–alumina catalysts promoted by copper containing 1, 2, and 5 wt. % Cu and 59, 58, and 55 wt. % Ni, respectively, (symbols: 59Ni1CuAl, 58Ni2CuAl, 55Ni5CuAl) and a non-promoted catalyst containing 60 wt.
Mantha Gousi   +6 more
doaj   +1 more source

Decarbonisation of olefin processes using biomass pyrolysis oil [PDF]

open access: yes, 2015
An imperative step toward decarbonisation of current industrial processes is to substitute their petroleum-derived feedstocks with biomass and biomass-derived feedstocks.
Akgul   +51 more
core   +1 more source

Conversion of furan derivatives for preparation of biofuels over Ni-Cu/C catalyst [PDF]

open access: yes, 2017
Conversions of furfural and 5-hydroxymethylfurfural as model components in bio-oil were investigated over Ni-Cu/C catalyst with formic acid as hydrogen donor in isopropanol solvent to produce biofuels. The effects of reaction temperature, feed ratio, and
Fu, Zhaolin   +3 more
core   +1 more source

Effect of reaction temperature on Mo/Al_2O_3 catalytic hydrodeoxygenation of alkali lignin bio-oils

open access: yes能源环境保护
Alkali lignin, an important source of industrial lignin, can be used for producing aromatic components in biofuels while retaining its aromatic ring structure through hydrothermal liquefaction technology.
CAO He   +4 more
doaj   +1 more source

Indium an efficient co-catalyst in novel Cu or Ni catalysts for selective reduction of biomass derived fatty acids to alcohols, in Indium: Properties, Technological Applications and Health Issues [PDF]

open access: yes, 2013
Supported copper or especially nickel catalysts are very important for hydrogenation of various organic compounds in the practice. Activity, selectivity and stability can be greatly improved using co-catalysts: e.g.
Harnos, Szabolcs   +2 more
core  

Effect of Mesopore Structural Parameters in Alumina Supports on Catalytic Hydrodeoxygenation of Guaiacol to Cycloalkanes via Ni-Supported Al2O3 Catalysts

open access: yesEnergies
The elevated oxygen content in lignin-derived oil restricts its direct application as a liquid fuel. Ni-based Al2O3 catalysts are commonly employed to enhance the quality of lignin-derived oil via the hydrodeoxygenation (HDO) process.
Wen Huang   +4 more
doaj   +1 more source

Nanocátalysts for oxygen removal from biomass derived biofuel [PDF]

open access: yes, 2018
The use of bio-energy as a renewable alternative to fossil fuels is nowadays attracting more and more attention. Bio-fuel from biomass seems to be a potential energy substitute for fossil fuels since it is a renewable resource that could contribute to ...
Ballesteros-Plata, Daniel   +4 more
core   +1 more source

Direct catalytic conversion of cellulose to liquid straight-chain alkanes [PDF]

open access: yes, 2014
High yields of liquid straight-chain alkanes were obtained directly from cellulosic feedstock in a one-pot biphasic catalytic system. The catalytic reaction proceeds at elevated temperatures under hydrogen pressure in the presence of tungstosilicic acid,
Dusselier, Michiel   +7 more
core   +2 more sources

A numerical model for the fractional condensation of pyrolysis vapours [PDF]

open access: yes, 2015
Experimentation on the fast pyrolysis process has been primarily focused on the pyrolysis reactor itself, with less emphasis given to the liquid collection system (LCS). More importantly, the physics behind the vapour condensation process in LCSs has not
Gu, Sai   +2 more
core   +1 more source

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