Results 61 to 70 of about 545,061 (279)

Distribution of Clay Minerals in Light Coal Fractions and the Thermal Reaction Products of These Clay Minerals during Combustion in a Drop Tube Furnace

Energies, 2016
To estimate the contribution of clay minerals in light coal fractions to ash deposition in furnaces, we investigated their distribution and thermal reaction products.
Sida Tian, Yuqun Zhuo, Zhonghua Zhan, Xinqian Shu, Zhizhong Kang   +4 more
doaj   +1 more source

Microwave‐assisted catalytic pyrolysis of textile wastes: Synergistic effects and product characteristics

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study examines the microwave‐assisted catalytic pyrolysis (MACP) of individual and blended textiles (cotton, polyester, nylon 6) using ZnO and a ZnO/natural zeolite catalyst. In a custom‐built microwave reactor operated at 500°C, 1 kW power, and a 15‐min residence time, textile wastes were pyrolyzed.
Peyman Alizadeh, Taylor Wright, Preksha Sharma, Xiaotao Bi   +3 more
wiley   +1 more source

Recovery of SiO₂ and Al₂O₃ from coal fly ash

, 2016
>Magister Scientiae - MScMost of the world's energy production is still mainly achieved by the combustion of coal in power stations. Coal fly ash is the inevitable waste product that accumulates to metric ton volumes each year.
Sedres, Grant
core   +1 more source

Solid-liquid migration of molybdenum in stone coal and coal ash in southern Shaanxi

, 2020
Molybdenum is a typical environmental sensitive element, and also a potential rare metal element. In order to find out the content characteristics of molybdenum in raw stone coal and coal ash and the migration rule between solid and liquid, stone coal ...
Weiguo, ZHANG, Huantong, LI, Feng, WANG, Fu, YANG, Jinxiang, TENG   +4 more
core   +1 more source

Application of artificial neural network and general machine learning modelling on CO2 adsorption in moisture equilibrated South African high and medium rank coals

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study investigates the effect of moisture on CO2 adsorption in South African coals using both experimental and machine learning approaches. Three coal samples (SL, TN, and EM) with varying ranks (RoVmr: 3.49%, 1.26%, and 0.64%, respectively) were collected from different regions of South Africa.
Kasturie Premlall, Lawrence Koech, Douw Faurie, Khanyisile Lepota   +3 more
wiley   +1 more source

Study on the co-combustion mechanism of coal gangue and coal gasification fly ash based on thermogravimetric mass spectrometry

Meitan xuebao
The combustion characteristics and gas release characteristics of the Wuhai coal gangue, the Suqian coal gasification fly ash, and their mixtures were revealed by thermogravimetric mass spectrometry analysis. The co-combustion mechanism of the Wuhai coal
Jiangong LIN, Xiaoyu ZHANG, Jicheng HUI, Shujun ZHU, Jianguo ZHU   +4 more
doaj   +1 more source

Petrographic Characteristics of Coal Gasification and Combustion by-Products from High Volatile Bituminous Coal

Energies, 2020
The coal was gasified in a fluidized bed reactor with CO2 as a gasifying agent at 889–980 °C. The coal and gasification residue produced during gasification was burned at temperatures up to 900 °C.
Barbara Bielowicz
doaj   +1 more source

A novel bubbling fluid bed reactor for the autothermal pyrolysis of waste plastics

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract A new pilot‐scale fluidized bed reactor operated under continuous conditions was developed and tested for the thermal pyrolysis of high‐density polyethylene (HDPE). The study focused on assessing the reliability and operability of the system under different operating conditions (400–550°C), while monitoring mass and energy balances, product ...
Khadija Olivia Ogoula Igouwe, Tchini Sévérin Tanoh, Jasmin Blanchard, Inès Esma Achouri, Nicolas Abatzoglou   +4 more
wiley   +1 more source

Bio-Desilication of Coal Fly Ash and the Impacts on Critical Metal Recovery

Metals
Critical metals such as rare earth elements (REEs) are primarily associated with silicates and aluminosilicates in coal fly ash, resulting in poor REE recovery.
Shulan Shi, Ting Chen, Simeng Ren, Jinhe Pan   +3 more
doaj   +1 more source

NON-INVASIVE CHARACTERIZATION OF UNSATURATED ZONE TRANSPORT IN DRY COAL ASH DUMPS: A CASE STUDY OF TUTUKA, SOUTH AFRICA [PDF]

, 2013
Doctor ScientiaeThe management of the large volumes of solid wastes produced as coal combustion residue is of particular concern due to the presence of leachable metals and salts which may constitute a long term environmental risk and potential ...
Muchingami, Innocent I.
core   +1 more source