Pyrolysis could in theory be done with concentrated solar thermal energy. The issues would be: -- How much mirror area [heat] would be needed? -- Mirror geome

Pyrolysis could in theory be done with concentrated solar thermal energy. The issues would be: -- How much mirror area [heat] would be needed? -- Mirror geometry: Troughs may lend themselves to continuous processing and gas recovery a bit better than central point concentrators but they provide less heat potential. -- Can the economics work if you only process when the sun shines?