asteroza + carbonate   32

CO2 Electroreduction from Carbonate Electrolyte | ACS Energy Letters
Electrolyzer for direct conversion of carbonate to syngas without intermediate steps, reducing the energy required for using CO2 feedstock for synthetic fuels
carbonate  electrolyte  membrane  electrolyzer  silver  catalyst  CO2  conversion  syngas  production  materials  science  research  technology  synfuel  synthetic  fuel  hydrocarbon 
june 2019 by asteroza
Encapsulated liquid sorbents for carbon dioxide capture | Nature Communications
Alternative to liquid CO2 sorbents for carbon capture, packing the liquid into UV hardened micro-silicone shells up contact area and ease of use.
microencapsulation  liquid  carbonate  core  polymer  silicone  shell  capsule  carbon  capture  CO2  CCS  materials  science  research  technology 
april 2019 by asteroza
Bacterially Produced, Nacre‐Inspired Composite Materials - Spiesz - - Small - Wiley Online Library
Using bacteria to lay down synthetic nacre layers, in a bottom up manufacturing approach. Surprisingly stiff and bendable.
artificial  synthetic  nacre  calcium  carbonate  composite  biomimicry  biomanufacturing  bacteria  secretion  biology  materials  science  research  technology 
april 2019 by asteroza
Fuel Cells Finally Find a Killer App: Carbon Capture - IEEE Spectrum
hrm, how hot is the CO2 exhaust? Can you get it to supercritical pressure/temperatures? There's that NETpower allam cycle demo that uses an oxyfuel gas turbine with similar inputs/outputs. The MCFC is more tolerant of inputs, but the allam cycle turbine might have better power output? What is you use a MCFC as a topping cycle replacement of an allam cycle combustor?
MCFC  molten  carbonate  fuelcell  carbon  capture  power  generator 
june 2018 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
A Template-Free, Ultra-Adsorbing, High Surface Area Carbonate Nanostructure
Previously thought to be unsynthesizable, Upsalite is a magnesium carbonate porous structure with insane porosity.
upsalite  magnesium  carbonate  porous  materials  science  research  technology  sponge  nanoporous  Delicious 
october 2015 by asteroza
www.mineralcarbonation.com
Some sort of carbon capture startup, using some kind of foamed manganese carbonate bricks for air carbon capture.
technology  carbonate  materials  carbon  capture  CO2  research  science  Delicious 
august 2013 by asteroza
DisruptiveMaterials | Materials that matter
New high surface area carbonate that beats zeolites and seems easy to make. Also very good as a desiccant.
upsalite  magnesium  carbonate  surface  technology  nanostructure  hygroscopic  research  science  desiccant  area  materials  porous  high  nanoporous  microporous  pore  nanotechnology  sponge  Delicious 
august 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
Fueling the Fleet, Navy Looks to the Seas - U.S. Naval Research Laboratory
Pretty compact skid mounted synthetic jet fuel maker. Unfortunately, this is really only practical with an all electric ship/navy, particular ones powered by nuclear power. Well, unless ports allow docked oilers/ tankers to consume huge amounts of shore power...
navy  synthetic  jet  fuel  synfuel  acidified  seawater  electrochemical  acidification  cell  reactor  carbon  caputre  CO2  saltwater  carbonate  CO2  hydrogen  methane  long  chain  liquid  hydrocarbon  Delicious 
september 2012 by asteroza
Caltech Chemical Engineers Devise New Way to Split Water - Caltech Media Relations
850C 4 step thermochemical complete water splitting for hydrogen gas production, which puts it in the realm of operation with high temperature nuclear reactors.
thermochemical  water  splitting  manganese  oxide  sodium  carbonate  hydrogen  gas  production  chemistry  research  development  850C  Delicious 
august 2012 by asteroza
Kilimanjaro Energy
Formerly GRT, doing the artificial tree thing for air carbon capture, using a moisture swing ion exchange resin for capture.
direct  air  carbon  capture  CO2  artificial  tree  polymer  ion  exchange  resin  solid  carbonate  anionic  Delicious 
july 2012 by asteroza
2008-ECD-NHA-presentation.pdf (application/pdf Object)
Interesting use of recyclable hydroxides to reform biomass or coal/methane into hydrogen in one step at low temperatures with high hydrogen purity and no CO or CO2 production. Though if you want the CO or CO2, you can heat the resulting carbonate output (recaustication like at paper mills) to recover a relatively pure gas stream and recover the hydroxide for recycling back into the process inputs.
biomass  BFR  base  facilitated  reformer  chemical  production  process  materials  science  research  hydroxide  coal  methane  feedstock  hydrogen  gas  carbonate  filetype:pdf  media:document  Delicious 
june 2011 by asteroza
A new application of Molten Carbonate Fuel Cell (MCFC) has been developed to be eventually used as an alternative power supply for ships
Uh, so they are proposing a diesel fueled inline hydrogen gasifier hybrid MCFC fuelcell turbine. Small size, so that approaches a microturbine, say one of those Capstone one piece microturbines. Wonder about sulpur poisoning of the fuelcell due to diesel impurities...
EU  europe  research  MCFC  molten  carbonate  fuelcell  power  generator  ship  vessel  auxiliary  hybrid  gas  turbine  fuel  gasifier  hydrogen  production  syngas  microturbine  green  transportation  Delicious 
january 2011 by asteroza
MSU News Service - MSU: Baking soda dramatically boosts oil production in algae
Interesting result, but they failed to do the simple check of seeing if simply bubbling CO2 gas through the algae grow medium fluid at the same critical timing would result in the same increase in performance. Specifically, is direct stimulation/fertilization of algae with carbon dioxide sufficient, or is the chemical pathway being used here specific to free swimming carbonate in solution.
algae  production  biology  research  biofuel  green  energy  biodiesel  CO2  carbon  dioxide  baking  soda  sodium  carbonate  bicarbonate  Delicious 
november 2010 by asteroza
Solar Thermal Electrochemical Photo (STEP) Carbon Capture could Reduce Atmospheric CO2 to Pre-industrial Levels in Ten Years
Using an externally electrically driven molten lithium carbonate cell to crack CO2 down to C or CO, CO being fed into synthetic fuel processes, C for solid state long term sequestration/storage or as nanotube feedstock. Uses Solar CPV with thermal recovery to heat the cells and drive them electrically. Absolutely no mention of how the CO2 would be captured for input into the electrolysis cell (basically the same as a MSFC fuelcell, only without the hydrogen fuel) though.
step  solar  thermal  electrochemical  photo  CO2  lithium  carbonate  molten  electrolysis  cell  CO  syngas  synthetic  fuel  production  feedstock  CPV  concentrating  photovoltaic  MSFC  Delicious 
july 2010 by asteroza

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