CCS
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CCS absorbers: unit sizing and residence times?
Post-combustion CCS plants flow CO2 into an absorber unit, where it will react with a solvent, usually a cocktail of amines. This data-file quantifies operating parameters for CCS absorbers, such as their sizes, residency times, inlet temperatures, structural packings and the implications for retro-fitting CCS at pre-existing power plants.
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Hot potassium carbonate CCS: energy economics?
Hot potassium carbonate is a post-combustion CCS technology that bypasses the degradation issues of amines, and can help to decarbonize power, BECCS and cement plants. We think costs are around $100/ton and energy penalties are 30-50%. Potassium carbonate CCS can be stress-tested in this data-file, across 50 inputs.
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Origen Carbon: DAC breakthrough?
Origen Carbon Solutions is developing a novel DAC technology, producing CaO sorbent via the oxy-fuelled calcining of limestone with no net CO2 emissions. It is similar to the NET Power cycle, but adapted for a limestone kiln. The concept is very interesting. Our base case costs are $200-300/ton of CO2. This data-file contains our Origen…
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DAC to the future?
A new wave of DAC companies has been emerging rapidly since 2019, targeting 50-90% lower costs and energy penalties than incumbent S-DAC and L-DAC, potentially reaching $100/ton and 500kWh/ton in the 2030s. Five opportunities excite us and warrant partial de-risking in this 19-page report. Could DAC even beat batteries and hydrogen in smoothing renewable-heavy grids?
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Verdox: DAC technology breakthrough?
This data-file reviews Verdox DAC technology, optimizing polyanthraquinones and polynaphthoquinones, then depositing them on porous carbon nano-tube scaffolds. These quinones are shown to selectively adsorb CO2 when a voltage is applied, then desorb them when a reverse voltage is applied, unlocking 70% lower energy penalties than incumbent DAC?
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DAC companies: direct air capture screen?
Leading direct air capture companies (DAC companies) are assessed in this data-file, aggregating company disclosures, project disclosures and other data from patents and technical papers. The landscape is evolving particularly rapidly, trebling in the past half-decade, especially towards novel DAC solutions.
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Fans and blowers: costs and energy consumption?
Fans and blowers comprise a $7bn pa market, moving low-pressure gases through industrial and commercial facilities. Typical costs might run at $0.025/ton of air flow to earn a return on $200/kW equipment costs and 0.3kWh/ton of energy consumption. 3,000 tons of air flow may be required per ton of CO2 in a direct air capture…
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MHI CCS technology: performance, costs and emissions?
MHI has deployed an amine-based CO2 capture technology, in 15 plants globally, going back to 1999. Reboiler duties are around 2.6 GJ/ton on a 10% CO2 feed. Capture rates and capture purity are high. Degradation and amine emissions are controlled, and c80-90% below MEA. CCS costs and complexities remain high. In our view, this is…
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Entropy CCS: natural gas CCS breakthrough?
Advantage is a Montney gas producer, which recently sourced a $300M investment from Brookfield to scale up its Entropy23 amine blend for natural-gas CCS. Entropy has captured 90-93% of the CO2 at the first pilot plant at Glacier, Alberta, with 2.4 GJ/ton reboiler duty, 40% below MEA. This 7-page report confirms a moat around the…
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CANSOLV: CCS amine case study?
CANSOLV is a proprietary CCS amine being commercialized by Shell since 2014. This data-file aggregates data into its reboiler duties (2.4-3.2 GJ/ton), amine emissions to air (can be below 0.2ppm) and degradation rates (pretty decent, especially up to 2,500 hours). Interest in workable CCS amines has been accelerating since early-2023.
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