asteroza + syngas   52

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
Concentrated Solar Photovoltaics provide both electricity and heat.
Last pic has a split hybrid CSP system, with visible spectrum PV with an IR reflector, feeding IR to a fiber line for use elsewhere in a high temp electrolysis cell.
hybrid  CSP  PV  thermal  IR  fiber  optic  transfer  power  generator  solar  high  temperature  electrolysis  hydrogen  gas  production  syngas  CO2  cracking 
march 2019 by asteroza
IneraTec - Home
Interesting new Gas-to-Liquids conversion system using an innovative microstructured chemical reactor design. Fed by a direct atmospheric CO2 capture unit and an electrolysis unit, it converts CO2 and hydrogen into synfuels
CO2  conversion  GTL  liquid  synthetic  fuel  production  synfuel  syngas  chemical  reactor  Delicious 
november 2016 by asteroza
Apparently they have a good high temperature steam electrolysis SOEC that can produce hydrogen at decent efficiencies, for feeding into a RWGS conversion reactor syngas production rig, to eventually produce synthetic methane (combining syngas from the reactor with additional H2 from the SOEC), or eventually via FT, synthetic liquid fuels. They don't seem to be doing a coelectrolysis SOEC to crack steam and CO2 simultaneously in the same cell stack though.
SOEC  solid  oxide  electrolysis  cell  high  temperature  water  H2O  steam  CO2  syngas  production  synfuel  synthetic  fuel  methane  CH4  liquid  GTL  hydrogen  Delicious 
november 2014 by asteroza
Amorphous TiO2 coatings stabilize Si, GaAs, and GaP photoanodes for efficient water oxidation
Using electron leaky titanium dioxides as a semiconductor coating that can pass electrons, a possible oxidizing side water photocracker to produce solar fuels.
materials  science  research  technology  artificial  photosynthesis  water  cracking  electrolysis  oxidation  Ti2  leaky  electron  photoanode  nickel  oxide  photocatalyst  solar  fuel  syngas  hydrogen  production  amorphous  Delicious 
june 2014 by asteroza
SOLAR-JET - Zero-carbon jet fuel from sunlight
Apparently they demoed a working solar thermal CO2 cracker to make syngas, a precursor for synthetic fuels. Single chamber, not obvious but previous methods that used a rotating medium are replaced by a single porous ceria medium (so solid state/non-rotating then).
EU  europe  synfuel  syngas  production  CO2  cracking  solar  thermochemical  synthetic  kerosene  fuel  Delicious 
may 2014 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
A regenerable oxide-based H2S adsorbent with nanofibrous morphology : Nature Nanotechnology : Nature Publishing Group
Possible new absorbent that might allow sulfur removal from natural gas or coal/biomass derived syngas without a cooling/liquid step (which normally complicates the process and introduces energy inefficiencies). This would make coal or biomass based syngas much more appealing, especially for advanced syngas combustion cycles that allow for easier carbon capture.
removal  sulphur  sulfer  biogas  syngas  nanotechnology  technology  research  science  materials  fiber  nanostructure  area  surface  reactivity  high  filtering  cleaning  processing  gas  sorbent  mat  nanofiber  oxide  titanium  zinc  adsorbent  H2S  sulfide  hydrogen  Delicious 
december 2012 by asteroza
CoolPlanet | Home
Company touting "net negative carbon" fuel manufacture. I would call it more like net neutral. Sounds like they are making biochar while capturing syngas, just with a better gasifier and preprocessor. Might be interesting though.
biomass  gas  fractionator  thermal  mechanical  processor  gasifier  syngas  synfuel  synthetic  fuel  biochar  green  energy  research  technology  Delicious 
august 2012 by asteroza
ASME 2011 Small Modular Reactors Symposium - SMR2011
Interesting papers (6520 and 6554) about a hybrid nuclear/combustion gas turbine plant, Using a helium gas brayton cycle turbine to run a decoupled air compressor for a linked coal gasification syngas powered combustion turbine (with likely combined cycle steam plant which could also be linked with the nuclear side of the plant). Also talking about integrated process heat and synfuel production. Natural gas carrot to try to get nuclear synfuel production capabilities? There is some CAES talk since the air compressor is decoupled which would allow storage, and nuclear heat is available for air reheat when releasing from storage.
hybrid  helium  nuclear  reactor  gas  brayton  cycle  turbine  coal  gasification  syngas  combined  decoupled  air  compressor  power  generator  concept  design  CAES  compressed  air  storage  energy  Delicious 
february 2012 by asteroza
Microwave and waste heat reformation holds prospect of improving fuel energy content and reducing CO2 - Ricardo
Using engine waste heat to heat diesel fuel, to reduce input energy requirements for a microwave diesel fuel reformer producing syngas on the fly for an engine.
Ricardo  HeatWave  recuperated  diesel  fuel  microwave  reformer  syngas  production  engine  motor  efficiency  automotive  technology  green  energy  Delicious 
september 2011 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 - Oxy-MHD
"Topping Ready" oxyfuel topping cycle, which is an oxyfuel combustor integrated with a topping cycle MHD. The recent improvements in UV lasers ionizing oxidizer and fuel may make it possible to seed the MHD plasma without sacrificial seeds, but these guys make the argument that stoichiometric combustion of an oxyfuel setup gets hot enough for thermal plasma anyways, reducing (but not eliminating?) the need for seeding. But they seem to use water/steam injection in the combustor itself, ostensibly to keep it from melting (why not a reverse vortex combustor with oxygen in the outer vortex and fuel center injection?) and to provide the majority of the working fluid volume as steam for a conventional steam turbine, but the MHD variant will reduce the water injection in exchange for MHD power extraction causing cooling.
oxyfuel  stoichiometric  oxygen  combustor  MHD  topping  cycle  power  generator  natural  gas  methane  coal  gasificiation  syngas  IGCC  CC  Delicious 
july 2011 by asteroza
Self-Cleaning Anodes: Researchers Develop Nanoparticle Technology That Could Facilitate Cost-Effective Coal-Powered Fuel Cells « Georgia Tech Research News
Barium oxide nanostructure anode coating keeps SOFC clear of coking deposits when using coal gas, operate at 750C for less expensive materials usage. Coal gas poisoning issues not explored.
SOFC  fuelcell  materials  science  reearch  anode  coking  surface  treatment  barium  oxide  nanostructure  nanotechnology  self-cleaning  cleaning  water  mediated  carbon  removal  coal  gas  syngas  vapor  deposition  Delicious 
june 2011 by asteroza
ClearFuels - Technology
Interesting steam reformer that takes clean biomass and converts directly to syngas for feeding a FT process, utilizing FT tail gas for indirect heating of the biomass. Claim low costs, might be could for an algae biomass feedstock.
ClearFuels  HEHTR  hydrothermal  reformer  steam  gasifier  syngas  production  BTG  biomass  Rentech  FT  Fischer-Tropsch  synfuel  synthetic  fuel  green  thermochemical  conversion  feedstock  Delicious 
january 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
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
Hybrid Power Technologies, LLC
Odd ball hybrid nuclear/combined cycle gasified coal powerplant design. Uses a gas cooled reactor turbine to drive the combustion turbine's decoupled compressor to get disgustingly high pressure for combustion.
hybrid  helium  nuclear  reactor  gas  brayton  cycle  turbine  coal  gasification  syngas  combined  decoupled  air  compressor  power  generator  concept  design  CAES  compressed  storage  energy  NACC  Delicious 
may 2010 by asteroza
Storing surplus green energy as natural gas
This is interesting because they seem to be focusing on smaller scale Fischer-Tropsch and related processes to make synthetic methane fuel from syngas for energy storage. You usually only see this being done at large scale plants that are intended as net fuel producers for higher hydrocarbons (South African CTL plants as an example)
Fraunhofer  energy  storage  electrolysis  Fischer-Tropsch  syngas  syntheic  fuel  methane  natural  gas  production  research  green  Delicious 
may 2010 by asteroza
Albin Czernichowski of France is researching gliding arc plasma reactors (for some reason called GlidArc). Apparently did a presentation to the ACS recently;
gliding  arc  plasma  reactor  physics  materials  science  technology  research  green  energy  syngas  production  biofuel  processing  waste  recovery  Delicious 
march 2010 by asteroza

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