Intellectual Property

US and International Patents

  1. “Process and Compounds for Removing Carbon Dioxide from Gas Mixtures”, (with nine other researchers), International Patent Application PCT/CA2007/001435 filed 08/23/2007
  2. “Process Integration – Method for Capturing CO2 from Gas Stream” (Idem, R; Tontiwachwuthikul, P; Gelowitz, D) US Provisional Patent Application 60/940,529
  3. “Chemical Additives To Inhibit Oxygen And Sulfur Dioxide Induced Degradation Of Amine Solvents During CO2 Capture From Flue Gas Streams”, (with four other researchers), US Provisional Patent Application filed 05/29/2007


CO2 Capture

  1. “Method for inhibiting amine degradation during CO2 capture from a gas stream”, USA Patent: US 8,105,420 B2 (Jan 31, 2012); Idem, T. Supap, P. Tontiwachwuthikul, C. Saiwan, P. Pitipuech.
  2. “Method and absorbent composition for recovering a gaseous component from a gas stream”, USA Patent: US 8,388,737 B2 (March 5, 2013); D. Gelowitz, P. Tontiwachwuthikul, R. Idem.
  3. “Catalytic method and apparatus for separating a gaseous component from an incoming gas stream”, USA Patent: US 20,130,108,532 A1 (May 2, 2013); R. Idem, H. Shi, D. Gelowitz, P. Tontiwachwuthikul.
  4. “Corrosion inhibitors and their use for separating an acid gas from a gaseous mixture”, USA Patent: US 20,110,300,044 A1 (Dec 8, 2011); P. Tontiwachwuthikul, R. Idem, N. Kladkaew, C. Saiwan.
  5. “Reactive extraction process for regeneration of amine-​based solvents used for carbon dioxide capture”, USA Patent: US 20,140,094,360 A1 (April 3, 2014) C. Saiwan, P. Akkarachalanont, T. Supap, R. Idem, P. Tontiwachwuthikul.
  6. “Carbon dioxide removal from combustion gases by scrubbing with 4-amino-2-butanol and derivatives as liquid-phase absorbent”, USA Patent: US 7,910,078 B2 (Mar 22, 2011); P. Tontiwachwuthikul, A.G.H. Wee, R. Idem, K. Maneeintr, G-J. Fan, A. Veawab, A. Henni, A. Aroonwilas, A. Chakma.
  7. “Use of tris(2-​aminoethyl)​amine as carbon dioxide absorbent” WO 2,014,040,473 A1 (Mar 20, 2014);  Liang, H. Liu, Y. Na, P. Tontiwachwuthikul.

CO2 Utilization and Production of Hydrogen & Syngas

  1. “Sulfur tolerant catalysts for hydrogen production by carbon dioxide reforming of methane-​rich gas”, USA Patent: US 20,140,134,101 A1 (May 15, 2014); R. Idem, A.H. Mohammed, B. Saha.
  2. Catalysts for hydrogen production”, USA Patent: US 7,824,656 B2 (Nov 2, 2010); R. Idem, P. Kumar, Y. Sun.
  3. Catalysis for Feedstock-Flexible and Process-Flexible Hydrogen”, USA Patent: US 20,130,058,861 A1; (March 7, 2013); Idem, A.K. Mohammed, H. Ibrahim, P. Tontiwachwuthikul, T. Sukonket, M.F.A. Khan, P. Sengupta, M.A. Zahid, B. Saha.