Energy/Energy efficiency leasing the CO 2 . By reusing the waste CO 2 , the synthetic crude oil of the PtL plant is even achieving negative CO 2 emissions. The second source of CO 2 is the adsorption of CO 2 directly from the ambient air in the Direct Air Capture (DAC) process. An intake manifold sucks in air into a filter with a solvent that extracts the CO 2 and then binds it to a solid sorbent. Heat is then applied to the sorbent to release the CO 2 . Compressing the atmospheric CO 2 The carbon dioxide captured via DAC is stored in a balloon-like buffer. For further processing in the synthesis unit of the plant, the gas has to be compressed to a final pressure of 4.5 barg, which is technologically challenging. The CO 2 must not be contaminated, since the catalytic process requires pure gases without oil pollution that could permanently reduce or outweigh the process. Moreover, no CO 2 must get lost during the compression process. The solution is a gas compressor developed by the long-established Swiss company HAUG Sauer Kompressoren AG. The compressor has already proven to meet the highest gas purity and process quality requirements in several industries and research institutes. Modular oil-free and gas-tight compressor Fig. 3: The oil-free and hermetically gastight compressor compresses the CO 2 captured from the atmosphere. as well as intermittent operations, such as Atmosfair's application. Plus, it is hermetically gas-tight during operation and downtime, not allowing any CO 2 leakage. The reason is the non-contact and wear-free magnetic coupling, an in-house development, which can be used in the gas compressor of the HAUG.Neptune series for suction pressures of up to 14 barg. The modular concept of the compressor series allowed for an individual configuration to the requirements of the organisation. Pressure level and flow rate were therefore optimally adapted to the application via predefined cylinder modules. Synthetic crude oil for the refinery The last process step for the compressed CO 2 is the synthesis. In the synthesis unit, carbon dioxide and hydrogen are converted into a syngas, which is then used to produce synthetic crude oil, the primary product for the e-kerosene. This is done with the Fischer-Tropsch process. At temperatures of 150°C to 300°C, longchain hydrocarbons are formed in the presence of metal catalysts and eventually processed into climateneutral kerosene in a refinery. Sauer Compressors, Kiel, Germany This compressor is a completely oilfree and dry-running piston compressor that can be used for continuous Fig. 4: The compressor prior to its delivery in the factory hall of the compressor manufacturer. Certifi cate expired? Now switch to: KLINGERSIL ® C-4240 Germany The drinking water supply without compromises – Test confi rmation according to elastomer guideline valid until March 2026 PRIMUS AWARD SIEGER in der Kategorie DICHTUNGEN KLINGER GmbH, 65510 Idstein, Tel. +49 6126 40160, mail@klinger.de, www.klinger.de
