Optimal scheduling for enhanced coal bed methane production through CO2 injection

Authors

    Authors

    Y. P. Huang; Q. P. P. Zheng; N. Fan;K. Aminian

    Comments

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    Abbreviated Journal Title

    Appl. Energy

    Keywords

    Coal bed methane production; CO2 injection; Multistage stochastic; programming; Nonlinear programs; Optimal scheduling; OPTIMIZATION MODEL; MITIGATION OPTIONS; POWER-GENERATION; BITUMINOUS; COAL; SEQUESTRATION; SIMULATION; ISOTHERMS; EXPANSION; SYSTEM; BASIN; Energy & Fuels; Engineering, Chemical

    Abstract

    Enhanced coal bed methane production with CO2 injection (CO2-ECBM) is an effective technology for accessing the natural gas embedded in the traditionally unmineable coal seams. The revenue via this production process is generated not only by the sales of coal bed methane, but also by trading CO2 credits in the carbon market. As the technology of CO2-ECBM becomes mature, its commercialization opportunities are also springing up. This paper proposes applicable mathematical models for CO2-ECBM production and compares the impacts of their production schedules on the total profit. A novel basic deterministic model for CO2-ECBM production including the technical and chemical details is proposed and then a multistage stochastic programming model is formulated in order to address uncertainties of natural gas price and CO2 credit. Both models are nonlinear programming problems, which are solved by commercial nonlinear programming software BARON via GAMS. Numerical experiments show the benefits (e.g., expected profit gain) of using stochastic models versus deterministic models. (C) 2013 Elsevier Ltd. All rights reserved.

    Journal Title

    Applied Energy

    Volume

    113

    Publication Date

    1-1-2014

    Document Type

    Article

    Language

    English

    First Page

    1475

    Last Page

    1483

    WOS Identifier

    WOS:000329952500140

    ISSN

    0306-2619

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