Zhundong Coal Pyrolysis
Zhundong Coal Pyrolysis - Related Videos
07:30
Fast Pyrolysis of Biomass Residues in a Twin-screw Mixing Reactor
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Cited by 20 •
2016
A procedure for thermochemical conversion of biomass residues is presented that aims at maximizing the yield of liquid products (fast pyrolysis). It is based on a technology proven on an industrial scale and especially suitable for treating a straw type of biomass.
10:44
Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for Cu(II) Through Microwave Pre-Pyrolysis
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2019
Here, we present a protocol to synthesize nitrogen/oxygen dual-doped mesoporous carbon from biomass by chemical activation in different pyrolysis modes followed by modification. We demonstrate that the microwave pyrolysis benefits the subsequent modification process to simultaneously introduce more nitrogen and oxygen functional groups on the carbon.
11:28
Biomass Conversion to Produce Hydrocarbon Liquid Fuel Via Hot-vapor Filtered Fast Pyrolysis and Catalytic Hydrotreating
0 Views •
Cited by 15 •
2016
Experimental methods for fast pyrolysis of lignocellulosic biomass to produce bio-oils and for the catalytic hydrotreating of bio-oils to produce fuel range hydrocarbons are presented. Hot-vapor filtration during fast pyrolysis to remove fine char particles and inorganic contaminants from bio-oil was also assessed.
10:27
A Uniaxial Compression Experiment with CO2-Bearing Coal Using a Visualized and Constant-Volume Gas-Solid Coupling Test System
0 Views •
Cited by 3 •
2019
This protocol demonstrates how to prepare a briquette sample and conduct a uniaxial compression experiment with a briquette in different CO2 pressures using a visualized and constant-volume gas-solid coupling test system. It also aims to investigate changes in terms of coal’s physical and mechanical properties induced by CO2 adsorption.
08:07
A Two-Step Pyrolysis-Gas Chromatography Method with Mass Spectrometric Detection for Identification of Tattoo Ink Ingredients and Counterfeit Products
0 Views •
Cited by 2 •
2019
This method for two-step pyrolysis online coupled to gas chromatography with mass spectrometric detection and data evaluation protocol can be used for multi-component analysis of tattoo inks and discrimination of counterfeit products.
FAQs
Temperature, heating rate, and residence time strongly influence how organic structures break down and how much material appears as char, tar, or gas. In engineering studies, changing these conditions helps reveal whether the process favors solid retention, condensable recovery, or gas generation, while reactor models help examine these effects across operating conditions.
The high content of alkali and alkaline-earth minerals in Zhundong coal can alter volatile release, product composition, and ash behavior during heating. These mineral effects mean that identical thermal conditions may not produce the same product distribution or downstream behavior for different coals, making mineral composition an important engineering variable in process evaluation.
Ash behavior connects the pyrolysis stage with later utilization. Mineral components can influence how inorganic material behaves during conversion, creating conditions that engineers must consider when addressing fouling and slagging downstream. Examining this connection helps researchers judge whether a selected operating condition supports not only product recovery but also more manageable performance in subsequent processes.
A typical study heats Zhundong coal in an oxygen-limited environment, examines the resulting char, condensable tar, and gaseous products, and evaluates how operating conditions affect their formation. Researchers vary temperature, heating rate, or residence time, then use experimental results and reactor modeling to identify conditions suitable for the intended conversion objective.
Together, experiments and reactor models show how operating conditions influence product formation and process behavior. Experimental work supplies evidence about char, tar, and gas generation, while modeling helps assess those effects within reactor operation. This combined information supports selection of temperatures, heating rates, residence times, and other conditions for engineering design.
The process is relevant when engineers seek to upgrade coal, produce fuel, or recover chemical products from coal-derived streams. Its study also supports improved control of fouling and slagging during downstream utilization. These applications make product composition and ash behavior important design considerations rather than isolated laboratory observations.