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New Cooperation in Carbon Capture & Storage (CCS):
Since the global oil reserves keep dwindling, methods of enhanced oil recovery (EOR) have been In the course of the partnership between Lewa and Burckhardt Compression this EOR will be combined with the carbon capture & storage technology (CCS). The seminal CCS technology is arguably one of the most effective means to reduce the emission of greenhouse gases into the atmosphere. This is because acid gases, such as hydrogen sulphide (H2S) and carbon dioxide, that occur during oil production are captured and sequestrated. Afterwards they are stored in underground rock formations. A joint approach to achieve higher efficiency and more environmental sustainability
The agreement that was officially sealed during a meeting in Leonberg on August 27, 2012, unites
competence leaders from the fields of pumps and compressors: Lewa is the leading manufacturer of
process diaphragm pumps and metering and mixing packages for process engineering. Burckhardt
Compression is one of the world’s largest manufacturers of reciprocating compressors. The company
is recognized as the only compressor manufacturer of a complete range of Laby®
(labyrinth piston), Laby®-GI, Process Gas and Hyper compressors.
After that, cooling and liquefaction follow. Eventually a LEWA triplex diaphragm pump boosts the liquid
up to the required pressure (up to over 400 bar). The overall power saving due to liquefaction can be up to 15 % because the power consumption for
the compression of liquids is lower than for gases. Operators also benefit in other ways: corrosion
problems that in case of carbon dioxide occur in compressors at relatively low pressures can be
avoided in the liquid phase. Furthermore, variable flow rates and gas compositions can be handled by
the use of speed control, thus enabling a constant high efficiency. Also changes in the reservoir pressure are not disruptive because the system boosts the liquid to the final pressure in one single step. In order to facilitate a trouble-free planning phase, and, subsequently, a perfect functioning, the partners are constantly exchanging information – with each other and the future system users. Thus the expertise of both partners is available to the customers at consultancy meetings as well as during engineering and before and after the initial commissioning. High reliability even for demanding requirements The limit for piston compressors and diaphragm pumps lies at approximately 150 t/h of acid gas. In terms of carbon capture & storage, the CO2 emissions of many carbon dioxide generating processes and fossil fuelled power plants of 200 - 300 MW can be handled with one set of machines. Power plants of 200 - 400 MW would need two or three sets of machines. The range above (up to 1200 MW) would be the field of multistage turbo compressors. Such extreme requirements pose a big challenge to the sealing systems of a package. In order to meet this challenge typical Lewa qualities like hermetic tightness of diaphragm pumps and the broad experience of Burckhardt Compression in the field of CO2 compression, especially within the supercritical area, are crucial.
Source:
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PennEnergy Weekly Newscast .
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