[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem Engn, London SW7 2AZ, England
[2] CSIC, Inst Nacl Carbon, Oviedo 33011, Spain
[3] Cranfield Univ, Energy & Resource Technol Ctr, Cranfield MK43 0AL, Beds, England
[4] Univ London Imperial Coll Sci Technol & Med, Dept Earth Sci & Engn, London SW7 2AZ, England
[5] Univ Edinburgh, Sch Engn, SCCS Ctr, Edinburgh EH9 3JL, Midlothian, Scotland
[6] Univ London Imperial Coll Sci Technol & Med, Ctr Environm Policy, London SW7 2AZ, England
[7] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AZ, England
[8] Univ Edinburgh, Sch Geosci, SCCS, Edinburgh EH9 3JW, Midlothian, Scotland
[9] Chalmers Univ Technol, S-41296 Gothenburg, Sweden
[10] Univ Leeds, Energy Technol & Innovat Initiat, Leeds LS2 9JT, W Yorkshire, England
[11] Univ Leeds, Sch Proc Environm & Mat Engn, Leeds LS2 9JT, W Yorkshire, England
[12] Univ Texas Austin, McKetta Dept Chem Engn, Austin, TX 78712 USA