(A) simplified model of coal gasifier : a simple kinetic model applied to process simulation = 석탄가스화기 단순화 모델링 : 공정해석에 활용 가능한 단순속도반응 기반 모델a simple kinetic model applied to process simulation

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A coal gasifier is an important reactor to produce syngas from coal. In order to predict the performance of the gasifier process simulation and CFD simulation for the gasifier have been achieved. Specially, gasifier process simulations related to IGCC plant simulation have been based on an equilibrium calculation. From the advantages and disadvantage of the equilibrium model the necessity of an advanced model is proposed. This study proposes a Discrete Reactor Segment Model(DRSM) based on simple kinetics The DRSM simplifies a gasifier to three reaction groups as the relative magnitude of reaction rates. The reactions in the gasifier are categorized to devolatilization, heterogeneous reactions and homogeneous reactions. Rates of each reaction groups simplify as reasonable assumptions and limitations and the composition of syngas is obtained the calculation of reaction rates. The composition of produced syngas and carbon conversion is calculated as the change of input conditions and a qualitative analysis is executed. From the qualitative analysis the application of the DRSM is considered.
Advisors
Choi, Sang-Minresearcher최상민researcher
Description
한국과학기술원 : 기계공학전공,
Publisher
한국과학기술원
Issue Date
2009
Identifier
308523/325007  / 020063218
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 기계공학전공, 2009.2, [ vi, 66 p. ]

Keywords

process model; coal gasifier; reaction rate; simple kinetic model; 공정모델; 석탄가스화기; 반응속도; 단순속도모델; process model; coal gasifier; reaction rate; simple kinetic model; 공정모델; 석탄가스화기; 반응속도; 단순속도모델

URI
http://hdl.handle.net/10203/45689
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=308523&flag=dissertation
Appears in Collection
ME-Theses_Master(석사논문)
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