Results 121 to 130 of about 204,191 (335)

Gasification of Pine Wood Chips with Air-Steam in Fluidized Bed [PDF]

open access: yes, 2015
Tato práce studovala vliv použití vzduchu a páry jako zplynovacího činidla ve zkapalňovacím generátoru plynu na vlastnosti vyprodukovaného plynu (oxid uhelnatý, vodík, obsah dehtu a nízká výhřevnost). Tato studie byla založena na experimentech které byly
Salami, Najdat
core  

Combustion of a coal char particle in a stream of dry gas.

open access: yes, 2008
The burning rate, surface temperature, drag, and extinction conditions of a single char particle moving in a gas are computed numerically. The effects of the size and velocity of the particle and of the temperature and composition of the gas are examined
Adomeit   +42 more
core   +1 more source

Development and Validation of a Laboratory‐Scale Methanol Synthesis Mini‐Plant and Digital Twin Simulation

open access: yesChemie Ingenieur Technik, EarlyView.
A methanol mini‐plant and its digital twin were developed to study flexible feedstocks, reactant recycling, and product condensation. Experimental results show good agreement with simulations, allowing systematic investigation of process parameters. Tests with biomass‐derived syngas demonstrated the feasibility of industrial COx sources.
Timothy A. Nowak   +5 more
wiley   +1 more source

Revisiting the underground gasification of coal reserves from contiguous seams [PDF]

open access: yes, 2016
Purpose. Substantiating of contiguous coal seams coefficient during application of borehole underground coal gasification technology based on dependences of interstratial rocks subsidence on gasification duration. Methodology.
Dychkovskyi, R.O   +4 more
core  

Rekonstrukce výzkumné zplyňovací technologie na Výzkumném energetickém centru [PDF]

open access: yes, 2017
Gasification technology was one of the first large projects of the Energy Research Center at the VSB - Technical University of Ostrava. The beginnings of the technology date back to 2006, when construction of the first version of the gasification plant ...
Friedel, Pavel
core   +1 more source

Study on the Optimization of Coal Pillar Width in Goaf-Side Roadway Under the Synergistic Effect of Mining and Seepage

open access: yesApplied Sciences
In coal mine roadways excavated along the goaf with water accumulation, the roadway is subjected to the combined effects of water infiltration and multiple stresses from excavation activities, leading to significant deformation and challenges in ...
Shuai Yan   +4 more
doaj   +1 more source

Optimization of the Three-stage Biomass Gasification Characteristics in High-temperature Entrained-flow Bed

open access: yesBioResources, 2014
The raw material requirements for the indirect liquefaction of biomass are strict. In particular, the ratio of H2/CO must be greater than or equal to 1. However, traditional biomass gasification has problems that include a low H2/CO ratio and low carbon ...
Chao Chen   +4 more
doaj   +1 more source

Review of recent advances in the design, synthesis, and modification of biochar for remediation of heavy metal pollution in water

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Research frontiers in using biochar for heavy metal remediation. Abstract Heavy metal contamination of water has long been a serious environmental issue. Biochar and biochar‐based composites are emerging as effective and sustainable solutions for heavy metal removal due to their strong adsorption abilities and environmentally friendly nature.
Soumik Chakma   +4 more
wiley   +1 more source

Study of Methods and Development of Technological Scheme for Heat Removal from Rock Waste Dump [PDF]

open access: yes, 2017
The aim of this paper is to study the methods and develop technological scheme for thermal energy removal from coal mine rock waste dumps. The prospects of renewable energy sources development in Ukraine are analyzed.
Saik, Pavlo
core   +1 more source

Fractionation of coal through organo-separative refining for enhancing its potential for the CO2-gasification

open access: yesInternational Journal of Coal Science & Technology, 2020
Coal gasification has already been extensively studied earlier under varying conditions of steam, CO2, O2, inert conditions. Belbaid coal and its e, N and NMP-DETA SCC products recovered through organo-refining under milder ambient pressure conditions ...
Heena Dhawan   +4 more
doaj   +1 more source

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