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Engineer-Poet
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It makes one wonder, how do the economics compare to recovery from seawater... or is the primary benefit the removal of the hazard from the serpentine fibers?
Plastic is a much denser energy source than wastewater. It's doubtful that the same methods would be equally cost- or energy-efficient as applied to both of them. This applies particularly to halogenated plastics. PVC and PTFE need to be treated in ways which capture the chlorine and fluorine and especially isolate the fluorine from the environment.
This is probably what "cash for clunkers" should have been.
It remains to be seen if hypedrogen FCs offer the best bang for the buck in yard-truck cleanup. Methanol engines are much cheaper and refuel even quicker, so unless they are a lot less clean they are probably the better deal for now.
Unsurprising, as flawless fibers have the best mechanical properties but it appears to be certain types of defects in the fiber walls which makes them permeable to larger ions.
Says the guy who posts barely-rephrased statements from the article and thinks himself a worthwhile contributor. Self-awareness fail.
You were the original that guy here, SJC. Have you learned nothing?
Cobalt price today: $28.35/lb Platinum price today: $838.10/troy ounce Stop being that guy.
Discovered while digging for other things: 10,006,275 Keith , et al. June 26, 2018 Reducing the carbon emissions intensity of a fuel Abstract Techniques for reducing a carbon emissions intensity of a fuel includes injecting a carbon dioxide fluid into a first wellbore; producing a hydrocarbon fluid from a second wellbore to a terranean surface; and producing a fuel from the produced hydrocarbon fluid, the fuel including a low-carbon fuel and assigned an emissions credit based on a source of the carbon dioxide fluid.
These puff pieces never mention per-kWh rates or system and O&M costs that would let you calculate them. Tropical islands tend to have plenty of biomass potential, which is likely a cheaper avenue for decarbonization of relatively low per-area electric consumption than hypedrogen.
"higher reliability in providing power throughout the day, even on the steep terrain of Wuppertal"? The world record time for the Pike's Peak climb was set just this year by an EV... the Volkswagen IDR.
Interesting that the EVs seem to have passed PHEVs around 2013. I would not have expected that based on practicality and cost. Must be due to incentives.
China's imperative right now is clean air. There is lower-hanging fruit than electric generation. China is embarking on a build-out of swimming-pool nuclear reactors for district heating. It is a faster road to elimination of air pollution from coal combustion. 2 year build time for 400 MW(th). 400 MW(th) is about 6900 tons of water per hour heated from 40°C to 90°C. The coal-fired stoves it will be replacing are eerily similar to the ones used in England at the time of the deadly London smogs. They are much dirtier than power plants and almost impossible to clean up. If a dwelling requires a nominal 15,000 BTU/hr of heat, one 400 MW(th) reactor will heat around 90,000 dwellings. As it uses unpressurized coolant it is meltdown-proof. If you are trying to make a big difference in people's lives in a hurry to maintain your political legitimacy (the Mandate of Heaven), this is definitely a high priority.
That's all the ethanol program has ever been, Roger. Greenwashing.
Note that this catalyst works with syngas in general, and coal does not have to be the source. The syngas can come from biomass or biogas, and would likely require less cleanup from these sources. I am given to wonder if the CO2 is coming from the 2 CO -> C + CO2 reaction, which is favored at low temperatures. This deposits coke on the catalyst and degrades it. This seems likely to be the problem, because CO + H2O -> CO2 + H2 only requires a change in the input ratio of CO to H2 to compensate for it and the CO2 can even be recycled to the gasifier.
There were over 500k EVs in Europe as of 2 years ago: https://evobsession.com/500000-electric-cars-now-european-roads-charts/ EV sales in France exceeded 40k last year: https://www.electrive.com/2018/01/16/ev-sales-france-cross-40000-unit-milestone-2017/ There were 3799 PEVs registered in France just last month: https://cleantechnica.com/2018/10/13/zoe-leaf-i3-1-2-3-in-france-september-ev-sales-report/ Hypedrogen doesn't have the infrastructure to catch up.
Interesting that I don't read about CO2 formation in MeOH catalysts. It would be inconsequential anyway, because the typical copper-oxide MeOH catalyst can digest CO2 as well as CO; if something reacts CO + H2O -> CO2 + H2, they both get consumed a short time later as CO2 + 3H2 -> CH3OH + H2O. The net reaction remains CO + 2 H2 -> CH3OH
Methanol is one of the inputs, and the other products of the reaction are NOT mentioned. The actual content is behind a paywall. What are the odds that this is just a non-thermal method to convert MeOH into H2+ CO2? I'd bet 100%.
This looks clever, but the very large and costly battery plus the large number of specialty parts which will no doubt be involved suggests that service might be both difficult and expensive.
Still waiting for the one that replaces most H2O with CO2.
The usefulness of these batteries for grid regulation and reduction of demand charges may be good, but something I haven't seen mentioned yet is that these second-life batteries are also a store of material ready for recycling into new batteries. Stockpiling cells in relatively large installations prevents scarce elements from being lost in landfills, and the large size reduces the per-unit cost of handling them when they are no longer economically useful as energy storage.
But you're right about the fig leaf. It's all greenwashing.
The vapor pressure of ethanol at 39°C is only 127 mmHg, so a high-ethanol blend like E85 will have considerably lower RVP than a blend that's primarily gasoline. The entire reason for using E85 is that straight EtOH doesn't have a high enough vapor pressure for cold-starting.
the fact is that Germany has lowered emissions vis a vis 1990 levels by more than 30%This was almost entirely due to closing the inefficient Soviet-era industry in E. Germany. Progress has stagnated under the "Energiewende", which has wended its way back to filthy, destructive coal. they are running a heavily industrialized nation at below 10t of CO2 per capita. France is way ahead of Germany. If the country had not decided to shutter nuclear plants prematurelyProtecting coal interests is the whole point.
Lad, the fossil fuel DEMOCRATS are as much or more of a power in the USA. The daughter of "green" governor Brown of Commiefornia sits on the board of natural gas company Sempra.