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A review on transport of coal seam gas and its impact on coalbed methane recovery

Geoff G.X. WANG, Xiaodong ZHANG, Xiaorong WEI, Xuehai FU, Bo JIANG, Yong QIN

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 2,   Pages 139-161 doi: 10.1007/s11705-010-0527-4

Abstract: This paper presents a summary review on mass transport of coal seam gas (CSG) in coal associated with

Keywords： mass transport     coal seam gas (CSG)     coalbed methane (CBM)     coal     CBM recovery     carbon dioxide storage    

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Engineering Experiment Research of the Quantity Theoretical Orthogonal Design Optimal Method for the Coal-seam

Qin Shuyu,Qin Weihan

Strategic Study of CAE 2003, Volume 5, Issue 10,   Pages 52-55

Abstract:

To apply the orthogonal design to the optimization of the coal-seam injection technical parameters' combination is a better method that realizes the best effect of injection for the coal-seam withwith this method, its effect cannot definitely satisfy the injection engineering requirement for the coal-seamFor this reason, in view of the coal-seam with unsteady geological factors and the characteristic that

Keywords： quantity theory     technical parameter     orthogonal design     coal-seam injection     experimental study    

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Full-mechanized caving mining technology of extremely thick and hard coal-seam with hard roof in shallow

Zhang Zhongwen,Wu Jinan

Strategic Study of CAE 2011, Volume 13, Issue 11,   Pages 107-112

Abstract:

Top-coal caving difficulty degree and rational mining method were analyzedby theoretical method on the basis of the 4th coal-seam condition of Pingshuo Mining area.For improving top-coal caving degree, the parameters of full-mechanized caving mining face were obtainedratio would be realized by lengthening mining face and adding mining height in shallow buried hard coal-seam

Keywords： shallow buried depth     hard coal-seam with hard roof     top-coal caving difficulty degree     full-mechanized    

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Study on Coal Seam Roof Gas Drainage from the Strike of Annular Fracture Areas by the Long Drill Method

Liu Zegong,Yuan Liang,Dai Guanglong,Shi Biming,Lu Ping,Tu Min

Strategic Study of CAE 2004, Volume 6, Issue 5,   Pages 32-38

Abstract:

Gas in working faces is mainly produced in the destressing and desorption process of the coal bed,The coal beds are too soft to carry out bedding drilling and draw gas effectively.Mining in coal beds with gas of high conentration and low permeability and gas suction can be operatodfrom roof fracture areas will not flow into upper corners, so the technically drilling problem in soft coal

Keywords： coal seam     similar material experiment     numerical simulation     gas drainage     annular fracture area    

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Discussion on the Content of Coal Bed Gas Predicted by Indirect Method

Xian Xuefu,Gu Min

Strategic Study of CAE 2006, Volume 8, Issue 8,   Pages 15-22

Abstract:

Some dispute problems about the content of coal bed gas (methane) predicted by indirect method, includingthe existing status of the methane, the adsorption isotherm models for coal bed gas and their relationships, the free methane state in coal seam and the parameters for its capacity calculation, were discussed

Keywords： indirect method     gas in coal seam     methane     methane adsorbed     free methane    

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An adaptive sliding mode control technology for weld seam tracking

Jie LIU,Youmin HU,Bo WU,Kaibo ZHOU,Mingfeng GE

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1,   Pages 95-101 doi: 10.1007/s11465-015-0332-3

Abstract:

A novel adaptive sliding mode control algorithm is derived to deal with seam tracking control problem

Keywords： weld seam tracking     welding robotic manipulator     adaptive control     sliding mode control    

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Coal seam roof and floor hydrogeology conditions evaluation of Pingshuo No.1 mine and measures of preventing

Zhang Zhongwen,Wu Qiang,Fu Enjun,Fan Zhenli

Strategic Study of CAE 2011, Volume 13, Issue 11,   Pages 94-101

Abstract:

Aiming at water hazards menace of Pingshuo No.1 coal mine roof and floor, the paper ascertains relevant factors of coal mine water bursting on the base of analyzing the mining

Keywords： three maps method     vulnerability index method     water hazards of coal mine     prevented measures of water    

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Research on the Impact of Mining in Steep Seam on Ground Struc ture

Gao Mingzhong,Wang Lieping

Strategic Study of CAE 2007, Volume 9, Issue 11,   Pages 142-146

Abstract: ion in Huainan, probability-integral method is ewployed to study the for surface displacement due to coalIt is valuable of this paper to other coal mines which have similar geological and mining conditions.

Keywords： steep seam     surface movement and deformation     probability-integral method     predictions    

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evaluation on elevation of coalbed methane recovery ratio by injecting and burying CO2 for 3# coalseam of north section of Shizhuang, Qingshui Basin, Shanxi

Ye Jianping,Zhang Bing,Sam Wong

Strategic Study of CAE 2012, Volume 14, Issue 2,   Pages 38-44

Abstract: Under pressure lower than rupturing pressure for coal seam, 20 of CO2 can be injected smoothly dailyAfter injection of CO2, the coal rock swells and the local coal seam get less penetration ratio, whichratio of hydrocarbon gas reaches 14.18 cm3/g within the scope influenced by CO2 injection in the target coalseam.

Keywords： Qingshui Basin     Shanxi     CO2 injection     coalbed methane     recovery ratio    

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Offline motion planning and simulation of two-robot welding coordination

Tie ZHANG, Fan OUYANG

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1,   Pages 81-92 doi: 10.1007/s11465-012-0309-4

Abstract:

This paper focuses on the two-robot welding coordination of complex curve seam which means one robotMoreover, downhand welding is employed which can guarantee the torch and the seam keep in good contact

Keywords： complex curve seam     two robots     coordinated welding     motion planning    

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Status and Suggestion for Modern Coal Chemical Industry and Clean Coal Technology

Xie Kechang

Strategic Study of CAE 2003, Volume 5, Issue 6,   Pages 15-24

Abstract:

The important role of coal played in TPES was described, and the status of modern coal chemical industryand clean coal technologies was analyzed.on the scientific research experiences of the author, strategy and suggestion for the development of coalchemical industry and elcan coal technology in China were proposed.

Keywords： coal chemical industry     clean coal technology     strategy    

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Management and Practice of Large-Scale Modern Coal Enterprises

An Wang

Frontiers of Engineering Management 2014, Volume 1, Issue 1,   Pages 13-17 doi: 10.15302/J-FEM-2014004

Abstract: As the coal-dominated energy structure will remain unchanged in the short term, the sustainable developmentof the coal industry is still serving as one of the foundations for the sound development of the national

Keywords： coal industry     sustainable development     the four-orientation model    

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Managing Innovation: Accelerating the Development of Clean Coal Technology

Ya-juan Sun,Guo-qing Wang,Yan Wang,Ning Zhang,Zhen-qi Zhu

Frontiers of Engineering Management 2015, Volume 2, Issue 1,   Pages 86-92 doi: 10.15302/J-FEM-2015013

Abstract: Coal gasification technology concerns the clean, efficient utilization of coal, providing a core solutionPresently, China is pursuing the development of coal gasification technology despite industry setbacksAs a result, ENN’s Clean Coal Technologies include: Coal Hydro-gasification, Supercritical Coal Gasification, Catalytic Coal Gasification and Underground Coal Gasification, having successfully completed all pilot

Keywords： coal technology     coal gasification     innovation     management     clean     ENN    

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On the fouling mechanism of polysulfone ultrafiltration membrane in the treatment of coal gasification

Xue Zou,Jin Li

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 4,   Pages 490-498 doi: 10.1007/s11705-016-1600-4

Abstract: a polysulfone ultrafiltration membrane with the molecular weight cutoff of 20 kDa to treat crushed coal

Keywords： membrane fouling     ultrafiltration membrane     coal gasification wastewater     rejection coefficient    

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Title Author Date Type Operation

A review on transport of coal seam gas and its impact on coalbed methane recovery

Geoff G.X. WANG, Xiaodong ZHANG, Xiaorong WEI, Xuehai FU, Bo JIANG, Yong QIN

Journal Article

Engineering Experiment Research of the Quantity Theoretical Orthogonal Design Optimal Method for the Coal-seam

Qin Shuyu,Qin Weihan

Journal Article

Full-mechanized caving mining technology of extremely thick and hard coal-seam with hard roof in shallow

Zhang Zhongwen,Wu Jinan

Journal Article

Study on Coal Seam Roof Gas Drainage from the Strike of Annular Fracture Areas by the Long Drill Method

Liu Zegong,Yuan Liang,Dai Guanglong,Shi Biming,Lu Ping,Tu Min

Journal Article

Discussion on the Content of Coal Bed Gas Predicted by Indirect Method

Xian Xuefu,Gu Min

Journal Article

An adaptive sliding mode control technology for weld seam tracking

Jie LIU,Youmin HU,Bo WU,Kaibo ZHOU,Mingfeng GE

Journal Article

Coal seam roof and floor hydrogeology conditions evaluation of Pingshuo No.1 mine and measures of preventing

Zhang Zhongwen,Wu Qiang,Fu Enjun,Fan Zhenli

Journal Article

Research on the Impact of Mining in Steep Seam on Ground Struc ture

Gao Mingzhong,Wang Lieping

Journal Article

evaluation on elevation of coalbed methane recovery ratio by injecting and burying CO2 for 3# coalseam of north section of Shizhuang, Qingshui Basin, Shanxi

Ye Jianping,Zhang Bing,Sam Wong

Journal Article

Innovative approach of low carbon and efficient utilization of coal resources: The polygeneration systemof a combination of the gasified coal gas and the pyrolyzed coal gas to form the synthetic gas

Kechang XIE, Fan LI

Journal Article

Offline motion planning and simulation of two-robot welding coordination

Tie ZHANG, Fan OUYANG

Journal Article

Status and Suggestion for Modern Coal Chemical Industry and Clean Coal Technology

Xie Kechang

Journal Article

Management and Practice of Large-Scale Modern Coal Enterprises

An Wang

Journal Article

Managing Innovation: Accelerating the Development of Clean Coal Technology

Ya-juan Sun,Guo-qing Wang,Yan Wang,Ning Zhang,Zhen-qi Zhu

Journal Article

On the fouling mechanism of polysulfone ultrafiltration membrane in the treatment of coal gasification

Xue Zou,Jin Li

Journal Article