Results 21 to 30 of about 57,328 (310)

Effects of Pressurized Pyrolysis on the Chemical and Porous Structure Evolution of Coal Core during Deep Underground Coal Gasification. [PDF]

ACS Omega, 2023
During deep underground coal gasification, the semicoke produced by the pyrolysis of dense coal cores is an important material for its gasification and combustion.
Niu M, Xin L, Cheng W, Liu S, Wang B, Xu W.   +5 more
europepmc   +2 more sources

Modeling Test of Combustion Cavity Growth during Underground Coal Gasification in the Early Stage of Ignition. [PDF]

ACS Omega
The growth parameters of the underground coal gasification (UCG) combustion cavity are important for the regulation of its gasification process. The irregular cavities formed in the early stages of ignition can affect the stability of the gasification ...
Xin L, Wang B, Li J, Niu M, Shang Z, Xu W, Wang X, Li H.   +7 more
europepmc   +2 more sources

Constructed wetland as a green remediation technology for the treatment of wastewater from underground coal gasification process. [PDF]

PLoS One
The wastewater from underground coal gasification (UCG) process has extremely complex composition and high concentrations of toxic and refractory compounds including phenolics, aliphatic and aromatic hydrocarbons, ammonia, cyanides, hazardous metals and ...
Jałowiecki Ł, Strugała-Wilczek A, Ponikiewska K, Borgulat J, Płaza G, Stańczyk K.   +5 more
europepmc   +2 more sources

Underground Coal Gasification – Experience of ONGC [PDF]

IOP Conference Series: Earth and Environmental Science, 2017
Underground Coal Gasification (UCG) is expected to be game changer for nation like ours that requires large amounts of energy but have few natural resources other than coal. ONGC, being an integrated energy company and due to synergy between E & P operations and UCG, envisaged opportunities in UCG business.
Preeti Jain
openaire   +2 more sources

Experimental Investigation on the Pore Structure Evolution of Coal in Underground Coal Gasification Process. [PDF]

ACS Omega, 2022
Underground coal gasification (UCG) has been shown to be a promising method for deep coal resources. A series of complicated chemical reactions can induce a considerable change in the pore structure of coal and thus promote the UCG process in turn ...
Zhao B, Dong X, Chen Y, Chen S, Chen Z, Peng Y, Liu Y, Jiang X.   +7 more
europepmc   +2 more sources

Monitoring of Underground Coal Gasification

, 2012
A. Ramirez, Xianjin Yang, J. Wagoner
openaire   +4 more sources

Chemometric Study of the Ex Situ Underground Coal Gasification Wastewater Experimental Data. [PDF]

Water Air Soil Pollut, 2012
Smoliński A, Stańczyk K, Kapusta K, Howaniec N.   +3 more
europepmc   +3 more sources

A Thermal-Hydrological-Mechanical-Chemical Coupled Mathematical Model for Underground Coal Gasification with Random Fractures

Mathematics, 2022
In this paper, in order to understand the development process and influencing factors of coal underground gasification, taking the two-dimensional underground gasification area of the plane as the simulation object, the characteristics of the multi ...
Zhizhen Zhang, Xiao Yang, Xiaoji Shang, Huai Yang   +3 more
doaj   +1 more source

Preparation and Properties of High Water Filling Material for Coal Gasification Slag

Meikuang Anquan, 2020
In order to solve the collapse problem of underground coal gasification and reduce the dissolution of heavy metal cadmium from underground coal gasification slag, the high water filling material of coal gasification slag was prepared by the solution ...
XU Yang, XU Zaigang, XIE Hongfei, LI Cuiqin, CAO Yang, CHEN Qianlin
doaj   +1 more source

Study on fracturing monitoring and expansion law of underground gasification coal based on different gasification channel types

Meitan xuebao, 2023
During the underground coal gasification process, the thermal stress produced at high temperatures will lead to coal cracking, which may cause gas leakage.
Faqiang SU, Qichao DENG, Junbo WU, Tao ZHANG, Mengjia DAI, Xiaolong HE, Junnan YANG, Yihe YU   +7 more
doaj   +1 more source