Hanna, Wyoming underground coal gasification data base. Volume 1. General information and executive summary

Bartke, T.C.; Fischer, D.D.; King, S.B.; Boyd, R.M.; Humphrey, Arthur E.

doi:10.2172/6418495

Cited by 4 publications

(1 citation statement)

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“…During the mid to late 1970s, the Laramie Energy Technology Center conducted five pilot tests at the Hanna site (Wyoming, USA). In the context of the Hanna I large-scale experiment, a thick subbituminous coal seam at a depth of 120 m has been assessed for its suitability to be developed by UCG [59].…”

Section: Model Validation Against Ucg Field Trialsmentioning

confidence: 99%

Synthesis Gas Composition Prediction for Underground Coal Gasification Using a Thermochemical Equilibrium Modeling Approach

Otto

Kempka

2020

Energies

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Underground coal gasification (UCG) is an in situ conversion technique that enables the production of high-calorific synthesis gas from resources that are economically not minable by conventional methods. A broad range of end-use options is available for the synthesis gas, including fuels and chemical feedstock production. Furthermore, UCG also offers a high potential for integration with Carbon Capture and Storage (CCS) to mitigate greenhouse gas emissions. In the present study, a stoichiometric equilibrium model, based on minimization of the Gibbs function has been used to estimate the equilibrium composition of the synthesis gas. Thereto, we further developed and applied a proven thermodynamic equilibrium model to simulate the relevant thermochemical coal conversion processes (pyrolysis and gasification). Our modeling approach has been validated against thermodynamic models, laboratory gasification experiments and UCG field trial data reported in the literature. The synthesis gas compositions have been found to be in good agreement under a wide range of different operating conditions. Consequently, the presented modeling approach enables an efficient quantification of synthesis gas quality resulting from UCG, considering varying coal and oxidizer compositions at deposit-specific pressures and temperatures.

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Section: Model Validation Against Ucg Field Trialsmentioning

confidence: 99%

Synthesis Gas Composition Prediction for Underground Coal Gasification Using a Thermochemical Equilibrium Modeling Approach

Otto

Kempka

2020

Energies

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Numerical study of ground deformation during underground coal gasification through coupled flow-geomechanical modelling

Gao

Zagorščak

Thomas

2022

Fuel

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Yer Alti Kömür Gazlaştirmasi Üzeri̇ne Genel Bi̇r Derleme Ve Önemli̇ Saha Çalişmalari

KILIÇKAP

SARIÇAM

ÇEVİK

et al. 2022

Bilimsel Madencilik Dergisi

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Yer altı kömür gazlaştırma (YKG) tekniği, geleneksel yöntemler ile üretilmeye uygun olmayan kömür yataklarının değerlendirilmesi ve kömürden daha temiz yollarla enerji elde edilmesi amaçlarıyla uygulanmaktadır. YKG tekniği, yüz yılı aşkın bir süredir gerek laboratuvar gerekse gerçek saha ölçeklerinde denenmiş ve literatüre çeşitli çalışmalar kazandırılmıştır. Bazı kömür sahalarında pilot uygulamalar, bazılarındaysa ticari ölçekte YKG operasyonları yürütülmüştür. Bu operasyonlar sırasında elde edilen deneyimler, tekniğin uygulanabilirliği açısından bazı yöntemlerin geliştirilmesini ve saha seçim kriterlerinin ortaya konulabilmesini sağlamıştır. Bu çalışmada bu yöntemler ve kriterler incelenmiştir. YKG sırasında karşılaşılan bazı önemli sorunlar ve bu sorunlara karşı alınabilecek mühendislik önlemleri aktarılmıştır. Bu zamana kadar gerçekleştirilen saha çalışmalarına dair genel bilgiler paylaşılmış ve önemli görülen denemelere dair ayrıntılı bilgiler verilmiştir.

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Hanna, Wyoming underground coal gasification data base. Volume 1. General information and executive summary

Cited by 4 publications

References 0 publications

Synthesis Gas Composition Prediction for Underground Coal Gasification Using a Thermochemical Equilibrium Modeling Approach

Synthesis Gas Composition Prediction for Underground Coal Gasification Using a Thermochemical Equilibrium Modeling Approach

Numerical study of ground deformation during underground coal gasification through coupled flow-geomechanical modelling

Yer Alti Kömür Gazlaştirmasi Üzeri̇ne Genel Bi̇r Derleme Ve Önemli̇ Saha Çalişmalari

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