The Experts below are selected from a list of 5373 Experts worldwide ranked by ideXlab platform

Wang Jia-ming - One of the best experts on this subject based on the ideXlab platform.

Zunhong Yu - One of the best experts on this subject based on the ideXlab platform.

  • pilot trial and modeling of a new type of pressurized entrained flow pulverized coal Gasification Technology
    Fuel, 2008
    Co-Authors: Xin Gong, Fuchen Wang, Zunhong Yu
    Abstract:

    Abstract A new type of pressurized entrained-flow pulverized coal Gasification Technology has been developed by ECUST. It is characterized with four nozzles symmetrically disposed on the upper part of a gasifier. The effects of operation conditions on Gasification, N 2 as carrier gas with middle pressure superheated (MP SH) steam, CO 2 as carrier gas with MP SH steam and CO 2 as carrier gas without MP SH steam, respectively, have been tested in the pilot plant. The carbon conversion of all Gasification schemes is larger than 99%. For N 2 as carrier gas, the volume fraction (Dry) of CO + H 2 is larger than 90% (v). For CO 2 as carrier gas, the volume fraction (Dry) of CO + H 2 is larger than 92% (v) with MP SH steam and larger than 95% (v) without MP SH steam. At the same time, based on Gibbs energy minimization principle, the pulverized coal Gasification system model was built. The simulation results well matched the pilot-trial data under different operation conditions. The model can be used for the design, assessment, and improvement of the entrained-flow coal Gasification system.

  • performance of an entrained flow Gasification Technology of pulverized coal in pilot scale plant
    Fuel Processing Technology, 2007
    Co-Authors: Xin Gong, Xueli Chen, Fuchen Wang, Zunhong Yu
    Abstract:

    Abstract Performance of an entrained-flow Gasification Technology of pulverized coal in pilot-scale plant is introduced. The gasifier was operated for a throughput of 30–45 t coal per day at pressures of 1–3 MPa. Dense-phase pneumatic conveying was employed for coal's feeding to the gasifier using nitrogen and carbon dioxide as carrier gas, respectively. Effects of the operating conditions including oxygen/carbon ratio and steam/carbon ratio on Gasification results were investigated, and the concentration of (CO + H2) in gaseous products reached up to about 97% (vol., dry basis) when CO2 was employed as carrier gas. Moreover, performances of some important instruments in the conveying system of pulverized coal, such as the level indicator and the solid mass flow meter, were also investigated. The typical operating results in this plant such as (CO + H2) concentration, oxygen consumption, coal consumption, carbon conversion and cold gas efficiency were almost as good as those of some well-known dry-fed entrained-flow coal Gasification plants.

Sinopec Ningbo - One of the best experts on this subject based on the ideXlab platform.

Fuchen Wang - One of the best experts on this subject based on the ideXlab platform.

  • Progress on Opposed Multi-Burner (OMB) Coal-Water Slurry Gasification Technology and Its Industrial Applications
    Energy Procedia, 2017
    Co-Authors: Yan Gong, Guangsuo Yu, Yifei Wang, Xueli Chen, Fuchen Wang
    Abstract:

    Abstract Opposed multi-burner (OMB) coal-water slurry (CWS) Gasification Technology is a large coal Gasification Technology with self-owned intellectual property in China. With the dedicated support of Ministry of Science and Technology, National Development and Reform Commission (NDRC) and other relevant departments, East China University of Science and Technology (ECUST) and Yankuang Group had finished the pilot-scale research, the 1000 TPD industrial demonstration, the development of 2000 TPD OMB CWS Gasification Technology, and the industrial demonstration and operation of 3000 TPD ultra large scale OMB CWS Gasification Technology. OMB CWS Gasification Technology has been applied widely, having 52 projects and about 144 gasifiers. The total capacity of gasifier for all projects is about one hundred eighty thousand TPD, not including the spare gasifier. According to the industrial experience, OMB CWS Gasification is superior in many aspects, such as Gasification performance, process indexes, operational performance of the system, stability and reliability. OMB CWS Gasification Technology has great advantages especially in large-scale Gasification applications.

  • pilot trial and modeling of a new type of pressurized entrained flow pulverized coal Gasification Technology
    Fuel, 2008
    Co-Authors: Xin Gong, Fuchen Wang, Zunhong Yu
    Abstract:

    Abstract A new type of pressurized entrained-flow pulverized coal Gasification Technology has been developed by ECUST. It is characterized with four nozzles symmetrically disposed on the upper part of a gasifier. The effects of operation conditions on Gasification, N 2 as carrier gas with middle pressure superheated (MP SH) steam, CO 2 as carrier gas with MP SH steam and CO 2 as carrier gas without MP SH steam, respectively, have been tested in the pilot plant. The carbon conversion of all Gasification schemes is larger than 99%. For N 2 as carrier gas, the volume fraction (Dry) of CO + H 2 is larger than 90% (v). For CO 2 as carrier gas, the volume fraction (Dry) of CO + H 2 is larger than 92% (v) with MP SH steam and larger than 95% (v) without MP SH steam. At the same time, based on Gibbs energy minimization principle, the pulverized coal Gasification system model was built. The simulation results well matched the pilot-trial data under different operation conditions. The model can be used for the design, assessment, and improvement of the entrained-flow coal Gasification system.

  • performance of an entrained flow Gasification Technology of pulverized coal in pilot scale plant
    Fuel Processing Technology, 2007
    Co-Authors: Xin Gong, Xueli Chen, Fuchen Wang, Zunhong Yu
    Abstract:

    Abstract Performance of an entrained-flow Gasification Technology of pulverized coal in pilot-scale plant is introduced. The gasifier was operated for a throughput of 30–45 t coal per day at pressures of 1–3 MPa. Dense-phase pneumatic conveying was employed for coal's feeding to the gasifier using nitrogen and carbon dioxide as carrier gas, respectively. Effects of the operating conditions including oxygen/carbon ratio and steam/carbon ratio on Gasification results were investigated, and the concentration of (CO + H2) in gaseous products reached up to about 97% (vol., dry basis) when CO2 was employed as carrier gas. Moreover, performances of some important instruments in the conveying system of pulverized coal, such as the level indicator and the solid mass flow meter, were also investigated. The typical operating results in this plant such as (CO + H2) concentration, oxygen consumption, coal consumption, carbon conversion and cold gas efficiency were almost as good as those of some well-known dry-fed entrained-flow coal Gasification plants.

D. Tassios - One of the best experts on this subject based on the ideXlab platform.

  • Solid waste plasma Gasification: Equilibrium model development and exergy analysis
    Energy Conversion and Management, 2006
    Co-Authors: A. Mountouris, E. Voutsas, D. Tassios
    Abstract:

    Plasma Gasification Technology has been demonstrated in recent studies as one of the most effective and environmentally friendly methods for solid waste treatment and energy utilization. This study focuses on the thermodynamic analysis of plasma Gasification Technology, which includes prediction of the produced synthesis gas, energy and exergy calculations. To that purpose, an equilibrium plasma Gasification model, called GasifEq, is developed here by using recent thermodynamic data, which also considers the possibility for soot formation, as a solid carbon by-product. The GasifEq model also has the capability of energy and exergy calculations that are required for the optimization of such processes. This is demonstrated by the presentation of the effect of the most important process parameters on the energetic performance of the process. © 2005 Elsevier Ltd. All rights reserved.