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Progress in underground coal gasification

By Edited by Gerald Ondrey |

The world’s first demonstration plant combining underground coal gasification and gas-to-liquids (GTL) technologies in the same facility was officially opened on April 22 in Chinchilla, 350 km northwest of Brisbane, Queensland, Australia. The plant is operated by Linc Energy Ltd (Brisbane; www.lincenergy.com.au), which was formed to research, develop and commercialize the underground coal-gasification (UCG) process in Australia. The company has a technology agreement with two Russian institutions: the Skochinsky Institute of Mining (SIM) — the original creator and developer of UCG technology — and the Scientific-Technical Mining Assn. At the Chinchilla UCG plant, two wells — the injection well and the production well — are driven into the coal seam. Linc Energy introduces only compressed air via the injection well. The coal is subsequently ignited at the bottom of the injection well and the product gas (syngas) moves under pressure toward the production well where it is extracted and cleaned. The syngas is then converted via Fischer-Tropsch (cobalt catalyst) into liquid hydrocarbons (syncrude), which are subsequently filtered and refined into LPG, naphtha, jet fuel and diesel. Linc Energy has an agreement…
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The Influence of IIoT in the Dewatering Process Step of Pigment Production

Taking a look at dewatering, an important step at the heart of the colour pigment production process. By using a method for a calcined kaolin pigment as an example, we explain how an intelligent filter press can improve pigment production.

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