asteroza + ccs   42

Efficient CO2 Utilization via a Hybrid Na-CO2 System Based on CO2 Dissolution - ScienceDirect
Converts CO2 to hydrogen and baking soda via electrolytic cell and aqueous solution. Dependent on the aqueous solution though, where does that come from, how hard is it to regenerate, etc. Makes power too
CCS  CO2  carbon  capture  baking  soda  hydrogen  gas  production  power  generator  electrolytic  cell  sodium  ionic  conductor  NASICON  separator  membrane  chemistry 
10 weeks ago by asteroza
Zero emission synfuel from seawater | Brave New Climate
More like ocean CO2 capture, which considering ocean acidification, is probably a not bad idea to pursue...
ocean  seawater  CO2  carbon  capture  CCS  synfuel  production 
december 2018 by asteroza
Algoland: Biological Solutions to Clean Air and Clean Water |
Interesting projects here. Cynobacteria reactors fed with cement plant CO2 and treated landfill wastewater to make biomass. Another is Actively cultivating small shell mussels/bivalves for ocean algae control and as a another biomass source.
CCS  cynobacteria  carbon  capture  biomass  production  ocean  algae  filtering  mussel 
november 2018 by asteroza
Some sort of CCS in the form of direct injection of CO2 into wet concrete?
CCS  CO2  injection  concrete  materials  science  research  technology  construction 
october 2018 by asteroza
A Process for Capturing CO2 from the Atmosphere: Joule
Air carbon capture appears to now be below $1000/ton
air  carbon  capture  CO2  direct  CCS  sorbent 
june 2018 by asteroza
NEDO to Evaluate Technologies to Produce Methane Using CO2 From Coal, Green Hydrogen - News - Solar Power Plant Business
Uh, making synthetic methane from coal plant CO2 exhaust and solar PV electric cracked hydrogen seems kinda roundabout, but I guess if you don't have a syngas consumer nearby...
synthetic  methane  production  carbon  capture  CCS  CO2  reuse  japan  coal 
december 2017 by asteroza
Innovator Energy
Interesting CCS system, but I wonder how flue gas contaminants screw up the bubbler solvent chemistry
CCS  CO2  carbon  capture  ethanol  ammonium  bicarbonate  liquid  solvent  bubbler  flue  gas 
december 2017 by asteroza
Researchers assess power plants that convert all of their CO2 emissions into car...
I wonder if some bright spark in china could run with this and their soft coal powerplants which already power bitcoin mining datacenters...
molten  lithium  carbonate  electrolysis  carbon  nanotube  CNT  production  CO2  CCS  CCGT  materials  science  manufacturing  research  technology  Delicious 
june 2016 by asteroza
Thermodynamic assessment of CO2 to carbon nanofiber transformation for carbon se...
Oh wow, at the current prices for CNT's, you might be able to recover the profit lost on electricity production in a combined cycle powerplant with CCS installed by manufacturing carbon nanotubes from the captured CO2.
CO2  carbon  capture  CCS  molten  lithium  carbonate  electrolysis  nanotube  CNT  production  manufacturing  research  technology  Delicious 
june 2016 by asteroza
Harvesting Energy from CO2 Emissions - Environmental Science & Technology Letters (ACS Publications)
Requires a terrifyingly large membrane area (over 200 square kilometers for 1MW!), but interesting research.
amine  CO2  monoethanolamine  research  electrode  process  MEA  carbon  chemical  aqueous  porous  capture  power  generator  CCS  electrolyte  Delicious 
july 2013 by asteroza
CO2 extraction from seawater using bipolar membrane electrodialysis - Energy & Environmental Science (RSC Publishing)
Ocean acidification is starting to become an issue. This is a proposal to deal with that directly, provided you had the power and membranes to spare.
water  seawater  CO2  ocean  collection  extraction  dioxide  dissolved  carbon  membrane  capture  electrolysis  CCS  electrodialysis  Delicious 
april 2013 by asteroza
New Coal Technology Harnesses Energy Without Burning, Nears Pilot-Scale Development
Interesting chemical loop method to bypass direct combustion of coal or syngas. Used sealed process to strip iron oxide of oxygen with coal or syngas carbon to produce CO2 and reduced iron oxide, along with any coal dregs. The reduced iron oxide is brought outside of the chemical reactor and exposed to air, which causes it to heat up exothermically as it reacquires oxygen, the heat of which can run a conventional boiler for a steam turbine power generator. Makes CO2 capture much easier, and allows isolation of slag materials for separation/vitrification, rather than sending it up as flue gases. Wonder if this could be paired with the chemical looping desalination processes proposed for high temperature nuclear reactors?
direct  CO2  looping  research  SCL  iron  syngas  CDCL  oxide  chemistry  coal  carbon  chemical  capture  power  CCS  Delicious 
february 2013 by asteroza
Could the humble sea urchin hold the key to carbon capture? - Press Office - Newcastle University
So they obviously patented this but, if they plan on bubbling flue gases through a water column (which has a big energy cost due to increased back pressure on the power production system), one problem is sourcing the dissolved calcium for the water column, and the other is the catalyst recover. Nickel nanoparticles seem to be recoverable via magnetic separation, but during the calcium carbonate production process, wouldn't the catalysts get trapped in the carbonate itself, requiring you to ball mill grind the carbonate outputs of the system to recover the catalyst? The other problem is getting that calcium into the water column itself. Easy way would be relatively clean seawater, and keep cycling in fresh seawater into the column as the calcium gets depleted. But inland, you won't have a convenient body of water with usable calcium content. So how would you go about seeding the column then?
water  calcium  carbonate  nanoparticle  carbon  column  capture  nickel  mineralization  CO2  CCS  Delicious 
february 2013 by asteroza
Nickel nanoparticles catalyse reversible hydration of carbon dioxide for mineralization carbon capture and storage - Catalysis Science & Technology (RSC Publishing)
Interesting research related to carbon capture. Scientists set out to better understand carbonic acid creation, and needed a catalyst for speeding up experiments. Chance discovery of high surface area nickel on Sea Urchin exoskeletons led to the discovery that nickel nanoparticles catalyze the formation of calcium carbonate from dissolved CO2 and calcium in water, mimicking a carbonic anhydrase enzyme but without the pH limitations . It appears the process leads to direct calcium carbonate, without much carbonic acid byproducts. It may be possible to do this via a seawater column bubbling flue gas with suspended nickel nanoparticles, since the nickel particles can be separated magnetically (though wouldn't that require grinding the recovered carbonate?)
calcium  water  technology  CO2  research  science  carbonate  materials  nanoparticle  carbon  capture  nickel  column  mineralization  CCS  catalyst  nanotechnology  Delicious 
february 2013 by asteroza
Membranes for Petrochemical, Natural Gas, Refining and Other Applications - Membrane Technology and Research, Inc.
Working with DoE on a polymeric membrane called Polaris for CO2 separation of coal plant flue gas. Uses combustion gas slipstream for membrane sweeping. Claiming Polaris is 10x more permeable to CO2 than conventional materials.
postcombustion  DoE  technology  research  science  materials  Polaris  CCS  capture  carbon  membrane  film  porous  microporous  polymeric  polymer  separation  gas  CO2  Delicious 
december 2012 by asteroza
Graphene Technologies : Graphene Solutions | Graphene Manufacturer
So these guys are basically saying, instead of pumping CO2 underground and hoping it will stay there, lets take CO2 captured by CCS rigs and use that as an input into a good graphene production system.
nanotechnology  technology  research  manufacturing  production  graphene  CO2  CCS  carbon  capture  Delicious 
november 2012 by asteroza
Oxygen-separation membranes could aid in CO2 reduction - MIT News Office
Interesting possible combustor design for oxyfuel plants, where a combustor wrapped in this ceramic membrane does heat accelerated oxygen ion transport across the membrane from the air side to the combustor interior. How useful this is for regular oxygen separation is up for debate though, since this seems to want a direct heat source which would be difficult to arrange for a traditional ASU, thus pushing you to cryogenic air separation techniques. Hrm, I wonder if the flow rates and weight would be attractive to aircraft jet engine combustor applications, maybe extending up into a competitor for LACE?
ceramic  membrane  oxygen  ion  separation  separator  materials  science  research  technology  CCS  oxyfuel  combustor  design  Delicious 
may 2012 by asteroza
Clean Energy Systems, Inc. | Kimberlina
Interesting use of rocket combustor technology to run a oxyfuel combustor power generator, where the rocket exhaust is water injected to make more steam, then the whole exhaust (which is basically only steam and CO2) is run through a conventional steam turbine, and steam condensers make CO2 extraction easy. There is the possibility of doing a MHD topping cycle as well since the rocket combustor operates near stoichiometric so is hot enough for thermal plasma.
oxyfuel  rocket  combustor  combined  cycle  CC  methane  coal  gasification  syngas  IGCC  power  generator  research  CO2  carbon  capture  CCS  steam  turbine  Delicious 
july 2011 by asteroza
Industrial microwave pyrolysis of wood debris into biochar
Carbonscape  NZ  biochar  microwave  pyrolysis  CCS  CO2  charcoal  coal  carbon  capture  reduction  negative  green  power  energy  technology  Delicious 
may 2009 by asteroza

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