Results 1 to 10 of about 11,389 (187)

Comparison of Combustion and Gasification between Crushed and Block Coals in UCG Model Tests

open access: goldJournal of MMIJ, 2018
Small-scale underground coal gasification (UCG) model tests with a linking hole were carried out using two types of specimens made of either block coal or crushed coal to clarify their characteristics of combustion and gasification.
Jun-ichi KODAMA   +7 more
doaj   +3 more sources

Hidrologi pada Pengembangan Teknologi UCG

open access: hybrid, 2022
Air sangat penting untuk operasi proses UCG efisiensi tinggi, karena menyediakan segel di sekitar rongga gasifikasi yang membatasi keluarnya gas dan jumlah yang benar berpartisipasi dalam reaksi menghasilkan gas produk berkualitas tinggi. Tekanan operasi reaktor UCG harus dijaga lebih rendah dari kepala hidrostatik di jahitan, sehingga air akan ...
Retno Damayanti
openaire   +2 more sources

An Overview of the Chinese UCG Program

open access: yesData Science Journal, 2007
Coal is the dominant source of energy in China, but about 50% of the coal resource is left underground unmined. Because of this, the "long-tunnel, large section, two-stage" Underground Coal Gasification (UCG) technology has been put forward, and the UCG ...
Yulan Li, Xinxing Liang, Jie Liang
doaj   +3 more sources

APPROACHES TO THE GAS CONTROL IN UCG

open access: diamondActa Polytechnica, 2017
Underground Coal Gasification represents an alternative for conventional coal mining. This technology is also less expensive than traditional mining. It is expected that coal will be an important energy source in the coming decades. In requirement to improve the gasification process we must ensure that the combustion reactions generated enough energy ...
Ján Kačur, Karol Kostúr
openaire   +4 more sources

Change mechanism simulation study of the overlying strata temperature field and fracture field in UCG

open access: green矿业科学学报, 2017
The thermodynamic parameters of surrounding rock of the coal seam in a certain gasification field in Inner Mongolia are measured, and the relationships of the heat capacity and thermal conductivity of the surrounding rock of the coal seam and the ...
Zhao Mingdong, Dong Donglin, Tian Kang
doaj   +1 more source

Teknologi UCG dan Kebutuhan Energi Indonesia

open access: hybrid, 2022
Menipisnya cadangan minyak bumi di Indonesia mendorong untuk meningkatkan pemanfaatan energi alternatif. Batubara sebagai salah satu sumber energi alternatif dapat menjadi solusi. Indonesia memiliki potensi batubara cukup banyak, yaitu mencapai 161 miliar ton yang dapat ditambang (Sukhyar, 2012), namun masih banyak sumber daya batubara yang belum ...
null Tatang Wahyudi, null Silti Salinita
openaire   +2 more sources

Bioremediasi Air Tanah di Area Kegiatan UCG

open access: hybrid, 2022
Uji coba teknologi UCG telah banyak dilakukan di berbagai negara, baik pada skala laboratorium maupun pilot. Berdasarkan hasil uji coba tersebut, UCG dinilai layak secara teknis dan ekonomis. Keunggulan utama UCG dibandingkan dengan metode penambangan batubara konvensional adalah memanfaatkan potensi batubara dalam, sedikit menghasilkan limbah padat ...
Wulandari Surono
openaire   +2 more sources

Compact coal underground gasification (UCG) system development

open access: hybridImpact, 2017
Ken-ichi Itakura   +4 more
openaire   +2 more sources

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