Methane slip: how much gas evades combustion?
…in the study actually came in “negative”. I.e., the air above the gas turbines was depleted in methane relative to the broader atmosphere, which was attributed to “partial combustion of…
NEL: green hydrogen technology review?
…A hydrogen vehicle typically stores hydrogen at 700-bar, so that densities can reach 40kg/m3. By contrast air and CO2 at 700-bar reach 500 and 1,100 kg/m3. Gasoline at 1-bar is…
CCS challenges: by any amines necessary?
…air emissions (nitrosamines are a possible show-stopper), especially where CCS plants are run intermittently, and all of the issues above can be highly sensitive to the impurities in the feed…
Diesel power generation: levelized costs?
…generator, switchgear, control systems, fuel supply systems, coolant and lubrication systems, a foundation, powerhouse civil works and wiring towards the connected load. In the fuel cycle, air is drawn into…
Energy intensity of fiber optic cables?
…a $260bn (market cap) giant, producing connectivity equipment, and has a Top 3 market share in transceivers. Sumitomo is also active, making both cables and transceiver modules. Air Products notes…
Polyester: production process?
…(ethane cracking), the coldest of which reaches -200ºC (cryogenic air separation), but the average process takes place at 200ºC. PET is produced from the condensation polymerization of PTA and ethylene…
Newlight AirCarbon: bioplastics breakthrough?
…marketed as AirCarbon. The product is said to be carbon negative, biodegradable, strong, “never soggy”, dishwasher safe. Our AirCarbon technology review found some good underlying innovations, but was unable to…
Bloom Energy: solid oxide fuel cell technology?
…need for clean, small-scale generation in the energy transition (note here). How does a solid oxide fuel cell work? A solid oxide fuel cell draws in air at the cathode,…
Hydrogen peroxide: production costs?
…reduces anthraquinone. The reduced anthraquinone can later be oxidized, in the presence of air, forming both H2O2 and H2O, and regenerating the anthraquinone. The process uses a palladium catalyst. It…
Residential energy consumption over time?
…other hand, new categories of demand, such as air conditioning and other appliances, have more than offset the efficiency improvements in individual devices such as refrigerators. Heating demand for houses…