Results 91 to 100 of about 1,704 (212)

Environmental impact assessment of alternative technologies for production of biofuels from spent coffee grounds

Energy Science &Engineering, Volume 12, Issue 11, Page 4823-4842, November 2024.
Biodiesel production from spent coffee grounds. Abstract In the strategy to combat climate change that has been caused by the world's overdependence on fossil fuels, current research is focusing on the decarbonisation of the energy sector through the production of renewable cleaner energy, such as biofuels. Spent coffee grounds (SCGs), the waste stream
Wilberforce Kisiga, Manimagalay Chetty, Sudesh Rathilal   +2 more
wiley   +1 more source

Multi-stage pretreatment of hydrothermal liquefaction biocrude oil as a precursor for sustainable aviation fuel production

Fuel Processing Technology
A major challenge for upgrading hydrothermal liquefaction biocrude into sustainable aviation fuel is the presence of inorganic material. Unlike commercial crude oil or biofuel from energy crops, excessive amounts of contaminants such as salt, water, and ...
Sabrina Summers, Siyu Yang, Zixin Wang, Buchun Si, Harshal Kawale, Yuanhui Zhang   +5 more
doaj   +1 more source

Upgrading Biocrude Oil Converted From Animal Waste Via Hydrothermal Liquefaction [PDF]

, 2017
The goal of this study was to minimize the gum content of various viscous biocrude oil samples in order to meet the American Society for Testing and Materials (ASTM) fuel standards.
Dziura, Patrick
core  

Thermal and Oxidative Stability of Biocrude Oil Derived from the Continuous Hydrothermal Liquefaction of Spirulina

The stability of biocrude oil is a significant challenge for its storage, transportation, and refining. In this investigation, the thermal and oxidative stability of Spirulina-biocrude oil derived from a plug-flow continuous hydrothermal reactor was ...
Weijuan Lan, Yingxian Wang, Dongxue Yin, Maojiong Cao   +3 more
core   +1 more source

A simplified kinetic model for continuous hydrotreating of HTL biocrude [PDF]

, 2020
In this study, two packed bed hydrotreatingreactors are modelled withthe purpose of estimating the kineticparameters of deoxygenation and denitrogenationfor a two-stage upgradingof biocrude produced from hydrothermalliquefaction (HTL).
Vipin Manmohandas, Hetune, De Santos Brandao, Joao Guilherme   +1 more
core  

Ketal Sugar Conversion Into Green Hydrocarbons by Faujasite Zeolite in a Typical Catalytic Cracking Process

Frontiers in Chemistry, 2019
Fluidized catalytic cracking (FCC) converts hydrocarbons in the presence of a catalyst based on faujasite zeolite (USY and REY). While hydrocarbon is poorly reactive, biomass and its derived compounds are highly functionalized and not suitable to a ...
Joana Pinto, Igor Pedrosa, Camila Linhares, Rosane A. S. San Gil, Yiu Lau Lam, Marcelo Maciel Pereira   +5 more
doaj   +1 more source

Biocrude yield and productivity from the hydrothermal liquefaction of marine and freshwater green macroalgae

, 2014
Six species of marine and freshwater green macroalgae were cultivated in outdoor tanks and subsequently converted to biocrude through hydrothermal liquefaction (HTL) in a batch reactor.
Neveux, N, Haynes, B.S., Paul, N.A., de Nys, R, de Nys, R., Montoya, A, Jazrawi, C, Maschmeyer, T, Neveux, N., Haynes, B S, Magnusson, M, Masters, A F, Yuen, A.K.L., Maschmeyer, T., Jazrawi, C., Montoya, A., Yuen, A K L, Magnusson, M., Masters, A.F., Paul, Nicholas A   +19 more
core   +1 more source

Multiphase Numerical CFD Simulation of the Hydrothermal Liquefaction Process (HTL) of Sewage Sludge in a Tubular Reactor

Applied Sciences
This article presents multiphase numerical computational fluid dynamics (CFD) for simulating hydrothermal liquefaction of sewage sludge in a continuous plug-flow reactor.
Artur Wodołażski
doaj   +1 more source

Optimization to Hydrothermal Liquefaction of Low Lipid Content Microalgae Spirulina sp. Using Response Surface Methodology

Journal of Chemistry, 2018
The production and nature of the biocrude obtained from Spirulina sp. by hydrothermal liquefaction (HTL) technology is focused in this investigation. Our aim is to evaluate the interaction of different factors on the bio-oil production through HTL using ...
Xuan Wei, Dengfei Jie
doaj   +1 more source

Effects of the use of acetone as co-solvent on the financial viability of bio-crude production by hydrothermal liquefaction of CO2 captured by microalgae

Journal of CO2 Utilization
Hydrothermal Liquefaction (HTL) is a promising technology to produce biocrude from microalgal biomass that has captured gaseous CO2. However, several problems of this technology must still be solved to make it economically and technically feasible.
David Ocampo, Elkin A. Gómez, Luis A. Ríos, Gabriel J. Vargas   +3 more
doaj   +1 more source