Abstract Carbon capture and utilization/storage is an effective means to reduce CO2 emissions from power and energy intensive industries. Carbonate looping is a 2nd generation post-combustion CO2 capture technology using solid sorbents that form carbonates when reacting with CO2. This technology has economic benefits caused by the low efficiency penalty and the low cost of the sorbent. Autothermal continuous operation of this process at high CO2 capture rates has been successfully proven in several pilot plants up to 1.7 MWth. The 1 MWth pilot plant in Darmstadt has been operated for more than 2,000 h with long periods of steady-state conditions, which allows the evaluation of the performance of the reactor system during long-term operation. This paper presents complementary results of these pilot tests focussing on the performance of the carbonator and calciner reactors. A high carbonator efficiency above 80 % is possible in the temperature range of 650 – 675 °C with a specific solid inventory above 700 kg/m2 combined with either a high sorbent looping ratio of 16 moleCa/moleCO2 or a high make-up ratio of 0.13 moleCa/moleCO2. A calcination efficiency of 90 % can be achieved by a calciner space time above 6 min, if the calciner temperature is 30 K above the equilibrium temperature at the prevailing CO2 concentration. Heating of the sorbent entering the calciner consumes almost half of the thermal fuel input.
AI-powered Research feed
Round-ups are the summaries of handpicked papers around trending topics published every week. These would enable you to scan through a collection of papers and decide if the paper is relevant to you before actually investing time into reading it.
Climate change Research Articles published between Aug 08, 2022 to Aug 14, 2022
Aug 15, 2022
Articles Included: 5
Introduction: There is no consensus on the policies that should be seen as implicitly pricing carbon (see World Bank (2019a) for a discussion). The OE...Read More
Gender Equality Research Articles published between Aug 08, 2022 to Aug 14, 2022
Aug 15, 2022
Articles Included: 4
I would like to thank Anna Khakee, Federica Zardo and Ragnar Weilandt for their very useful comments as well as the participants of the workshop of 21...Read More
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on “as is” basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The Copyright Law.