4 ms·
Hello Rob, thanks for the post! Has your company performed an energy return on energy invested (EROI) accounting for your process? Few companies if any provide
by frantzen 7y ago
Hello Rob, thanks for the post! Has your company performed an energy return on energy invested (EROI) accounting for your process? Few companies if any provide a comprehensive EROI and/or CO2 emissions accounting for their product(s). I know you explained that the inputs are low-carbon; however (1) “renewable” energy is still anywhere from 10-50 gram CO2 per kWh (effectively), and (2) the CO2 intensity of your capital equipment can be depreciated over the useful lifespan and then allocated to each effective unit of energy (kWh or Gallon?). I’m genuinely excited about your technology; your low capital costs, inexpensive materials, intermittent operations, and hopefully low maintenance costs all sound very promising.
- rmcginnis 7y agoThanks! We haven't done a unique analysis yet, but here is a paper that does a good overview of energy balances and efficiencies for CO2 to fuels and products. In their separations discussion you can see why distillation of alcohols is not favorable. A membrane approach is approx. 6x better, but until the CNT membrane was shown to do this job, there was no practical way to do the separation at this efficiency. https://www.cell.com/joule/fulltext/S2542-4351(18)30042-4 https://www.cell.com/joule/fulltext/S2542-4351(18)30042-4