Fachartikel
-
Developing high-efficiency, low-carbon, clean coal in china
Issue 02/2015 In the last few decades, China has dramatically expanded access to energy and, as a result, has achieved nearly universal electrification (Figure 1). Although this accomplishment is notable, China’s energy mix is facing several pressing issues with important domestic and global implications. China is coal-rich and, for this…
Learn more -
Climate-friendly use of coal in power plants and in energy-intensive industrial facilities with carbon capture including the CO2 disposal in the methanol path
Issue 02/2015 Every CO2 reduction strategy should commence with the increase in efficiency of existing power plants followed by investments in state-of-the-art technologies and most advanced plants. EURACOAL’s three step strategy therefore starts in a logical sequence with the replacement and modernisation of existing power plants. In a second step…
Learn more -
Contribution of Domestic Methanol Production by applying Carbon Capture Technologies and the Future Energy Mix in NRW, Germany and the EU with Regard to Security Aspects of Supply
Issue 2/2015 As an alternative to petroleum the methanol production via synthesis gas – based on natural gas or biomass – may be a viable solution. But special attention should get the „green methanol“. Relevant research is to be supported, how to really produce out of CO2, sunlight and water,…
Learn more -
Constructing underground water barriers in areas subject to ground movement – a real engineering challenge
Issue 02/2015 Between 2011 and 2014 two new high-pressure water barriers were constructed at Ibbenbüren Mine, RAG Anthrazit Ibbenbüren GmbH, to provide a long-term seal capable of resisting the ground movements expected as a result of the planned extraction of the Beustfeld panel. Two water stoppings had already been erected…
Learn more -
Planning and excavation of a special-profile, deep- level face start-up road at Prosper-Haniel colliery
Issue 02/2015 The deepening of number 10 shaft and an extensive programme of development work has given Prosper-Haniel colliery access to new reserves of coal on mine level 7, at a depth of 1,159 m. In order to extract the gas outburst-prone Zollverein 1/2 seam in the Prosper North district,…
Learn more -
Drilling equipment for drifting and rockbolting – current developments and future trends from a manufacturer and user perspective
Issue 02_2015 Over the years underground drilling equipment for drifting and rockbolting were primarily developed with a view to increasing the penetration rate. The computer technology that gradually became available was subsequently employed for control and automation of the drilling systems. This ongoing development was not continuously pursued in more…
Learn more -
Energy reference projection for Germany to 2030/2050
Introduction In July 2014 the Federal Ministry for Economic Affairs and Energy (BMWi) in Berlin published a new Energy Reference Projection for Germany (1). This study was carried out for the BMWi by the Institute of Energy Economics (EWI), Cologne, the Institute of Economic Structures Research (GWS), Osnabruck, and…
Learn more -
Shaft filling at RAG – technical options for future requirements
Ausgabe 01_2015 The colliery closure programme under way in the German coal industry has also involved the permanent filling of mine shafts after underground operations have come to an end. The chosen filling technique depends very much on the future requirements that the shaft will have to meet. At RAG-operated…
Learn more -
Optimization of mucking and hoisting operation in conventional shaft sinking
Ausgabe 01_2015 The mostly applied shaft sinking method is conventional shaft sinking by drilling and blasting. Using this method, almost any shaft geometry is feasible and challenging ground conditions can be sunk through with acceptable sinking performances. Particularly mucking and hoisting operations of the sinking cycle have a relevant impact…
Learn more -
Modern freeze technology in action as five shafts are sunk at two project sites
Ausgabe 01_2015 Thyssen Schachtbau GmbH, based in Mülheim an der Ruhr, has for the last five years been increasingly engaged in drilling and freeze-shaft sinking operations in the Russian Federation. A whole range of projects of this kind have been delivered during this period. The most notable of these has…
Learn more
