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(12) United States Patent (10) Patent No.: US 9.284,203 B2 Josse Et Al

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(12) United States Patent (10) Patent No.: US 9.284,203 B2 Josse Et Al USOO92842O3B2 (12) United States Patent (10) Patent No.: US 9.284,203 B2 Josse et al. (45) Date of Patent: Mar. 15, 2016 (54) SYNGAS BIOMETHANATION PROCESS AND (56) References Cited ANAEROBC DIGESTION SYSTEM U.S. PATENT DOCUMENTS (71) Applicant: ANAERGIA INC., Burlington (CA) 4,289,625 A 9, 1981 Tarman et al. 4,880,473 A 11/1989 Scott et al. (72) Inventors: Juan Carlos Josse, Mission Viejo, CA 5,017,196 A 5, 1991 Dewitz (US); Andrew Benedek, Rancho Santa 5,395.455 A 3, 1995 Scott et al. 5,417,492 A 5/1995 Christian et al. Fe, CA (US) 5,424,417 A 6/1995 Torget et al. 5,605,551 A 2f1997 Scott et al. (73) Assignee: ANAERGIA INC., Burlington (CA) 5,865,898 A 2/1999 Holtzapple et al. 5,959,167 A 9, 1999 Shabtai et al. (*) Notice: Subject to any disclaimer, the term of this 6,022,419 A 2/2000 Torget et al. 6,048,374. A 4/2000 Green patent is extended or adjusted under 35 6,228, 177 B1 5/2001 Torget U.S.C. 154(b) by 0 days. 7,229,483 B2 6/2007 Lewis 7,494.637 B2 2/2009 Peters et al. (21) Appl. No.: 14/373,714 7,578,927 B2 8, 2009 Marker et al. 7,608.439 B2 10/2009 McTavish et al. 7.972,824 B2 7/2011 Simpson et al. (22) PCT Filed: Jan. 21, 2013 8,383,871 B1 2/2013 Sellars et al. 2006, O112639 A1 6/2006 Nicket al. (86). PCT No.: PCT/CA2013/050037 2007/0117195 A1 5/2007 Warner et al. 2007/0217995 A1 9/2007 Matsumura et al. S371 (c)(1), 2008, 0236042 A1 10/2008 Summerlin (2) Date: Jul. 22, 2014 2008/0280338 A1 11/2008 Hall et al. 2009. O151253 A1 6/2009 Manzer et al. 2009/0229595 A1 9/2009 Schwartz, Jr. (87) PCT Pub. No.: WO2013/110186 2009/02392.79 A1 9, 2009 Hall et al. PCT Pub. Date: Aug. 1, 2013 2010, 0021979 A1 1/2010 Facey et al. 2010, 0133085 A1 6/2010 Huctchins et al. (65) Prior Publication Data (Continued) US 2015/00271 79 A1 Jan. 29, 2015 FOREIGN PATENT DOCUMENTS BR OO940 1102 A 11, 1994 CA 2628323 * 6, 2007 ................ CO2F 2/12 Related U.S. Application Data (Continued) (60) Provisional application No. 61/589,663, filed on Jan. OTHER PUBLICATIONS 23, 2012, provisional application No. 61/652,260, Guiot et al. Env, Sci. Tech, vol. 45, Issue 5, pp. 2006-2012.* filed on May 28, 2012. Guiot, S.R. et al. (Mar. 2011), Potential of wastewater-treating anaerobic granules for biomethanation of synthesis gas, Environ (51) Int. Cl. mental Science and Technology, vol. 45, Issue 5, pp. 2006-2012. CO2F 3/28 (2006.01) Bredwell, M.D., et al., (1999), Reactor Design Issues for Synthesis CI2P 5/02 (2006.01) Gas Fermentations, Biotechnology Process, vol. 15, Issue 5, pp. CO2F 3/12 (2006.01) 834-844. Cozzani et al. A fundamental study on conventional pyrolysis of a CO2F II/04 (2006.01) refuse-derived fuel, Ind. Eng. Chem. Res. 1995, 34, 2006-2020. CO2F II/O (2006.01) International Search Report of PCT/CA2013/050037 dated Apr. 4, CIOK L/04 (2006.01) 2013. CIOB 53/00 (2006.01) Lewis, F.M. et al.; A Powerful byproduct, WEFTEC, Jan. 2008, pp. CIOB 53/02 (2006.01) 64-69. C05E II/00 (2006.01) Yang, Bin et al.; Pretreatment: the key to unlocking low-cost cellu CO2F ( 1/12 (2006.01) losic ethanol, Biofuels, Bioprod. Bioref 2:26-40 (2008). (52) U.S. Cl. (Continued) CPC ................. C02F 3/2893 (2013.01); C02F 3/12 Primary Examiner – Paul V Ward (2013.01); C02F II/04 (2013.01); C02F 1 1/10 (74) Attorney, Agent, or Firm — Borden Ladner Gervais (2013.01); C05F II/00 (2013.01); CIOB 53/00 LLP (2013.01); CIOB 53/02 (2013.01); CIOK I/04 (2013.01); C12P5/023 (2013.01); C02F 3/28 (57) ABSTRACT (2013.01); C02F 1 1/12 (2013.01); C02F 1 1/121 An anaerobic digester is fed a feedstock, for example sludge (2013.01); C02F 2203/00 (2013.01); Y02E from a municipal wastewater treatment plant, and produces a 50/14 (2013.01); Y02E 50/343 (2013.01); Y02W digestate. The digestate is dewatered into a cake. The cake 10/40 (2015.05): Y02W 30/47 (2015.05); Y10T may be dried further, for example in a thermal drier. The cake 137/85978 (2015.04) is treated in a pyrolysis system to produce a synthesis gas and (58) Field of Classification Search biochar. The gas is sent to the same or another digester to CPC ............... C02F 3/28: C12P3/28: C05F 11/00 increase its methane production. The char may be used as a USPC .......................................................... 435/167 soil enhancer. See application file for complete search history. 14 Claims, 1 Drawing Sheet US 9,284.203 B2 Page 2 (56) References Cited and Soil Quality Enhancement, Proceedings of the Sustainable Feed stocks for Advance Biofuels Workshop, Atlanta, GA, Sep. 28-30, U.S. PATENT DOCUMENTS 2010 pp. 257-281. Garcia-Perez, Manuel; Challenges and Opportunities of Biomass 2010, 0162627 A1 7/2010 Clomburg et al. Pyrolysis to Produce Second Generation Bio-fuels and Chemicals, 2010/0223839 A1 9, 2010 Garcia-Perez et al. Auburn University, Jun. 13, 2012. 2010/0317070 A1 12/2010 Agaskar Parry, Dave; Biosolids Technology Advances, Jan. 2012. 2011/0033908 A1 2/2011 Cheong et al. Melin, K. et al. Evaluation of lignocellulosic biomass upgrading 2011/01797OO A1 7, 2011 Monroe et al. routes to fuels and chemicals, Cellulose Chemistry and Technology 2011/0248218 A1* 10, 2011 Sutradhar et al. ............. 252/373 44 (4-6), 117-137 (2010). 2012fOO73199 A1 3/2012 Lewis Gullu, Dogan et al. Biomass to methanol via pyrolysis process, 2012/0322130 A1 12/2012 Garcia-Perez et al. Energy Conversion and Management, vol. 42, Issue 11, Jul. 2001, pp. 1349-1356. FOREIGN PATENT DOCUMENTS Demirbas, Ayhan, Biomass resource facilities and biomass conver sion processing for fuels and chemicals, Energy Conversion and CA 2641270 12/2009 Management, vol. 42, Issue 11, Jul. 2001, pp. 1357-1378. DE 101.07712 A1 9, 2002 Excerpts from Traite De Polarimetrie, Georges Bruhat, Paris, France, JP 2003-089793. A 3, 2003 1930. WO O1791.23 A1 10, 2001 Demirbas, Ayhan, The influence of temperature on the yields of WO 2004060587 A1 T 2004 compounds existing in bio-oils obtained from biomass samples via WO 2010001137 A2 1, 2010 pyrolysis, Fuel Processing Technology 88 (2007) 591-597. WO 2012166771 A2 12/2012 Lehmann et al. "Bio-Char Sequestration in Terrestrial Ecosys WO 2012166771 A3 12/2012 tems—A Review” Mitigation and Adaptation Strategies for Global WO 2013110186 A1 8, 2013 Change (2006) 11:403-427. OTHER PUBLICATIONS Linden et al. "Gaseous Product Distribution in Hydrocarbon Liaw, Shi-Shen et al.; Effect of pyrolysis temperature on the yield and Pyrolysis” Industrial and Engineering Chemistry vol. 47, No. 12, pp. properties of bio-oils obtained from the augerpyrolysis of douglas fir 2470-2774. Sustarsic “Wastewater Treatment: Understanding the Activated wood, Journal of Analytical and Applied Pyrolysis, vol. 93, Jan. Sludge Process' CEP Nov. 2009, pp. 26-29. 2012, pp. 52-62. AWWTA, Standard Methods, Section 2540G. (2000). Shanley Pump and Equipment, Inc., EDUR Pumps, http://www. ASTM. Section D3172, Proximate Analysis of Coal and Coke, Shanleypump.com/edur pumps.html, printed May 30, 2014. (2007). Jenkins, Scott; Oxidation-based water-reuse technology that Parry, D.L. et al. "Prolysis of Dried Biosolids for Increased Biogas improves mass transfer, Chemical Engineering, Feb. 2013, p. 12. Production” Proceedings of the Water Environment Federation, Mahulkar, A.V. et al; Steam Bubble Cativation, AlChE Journal, vol. Residuals and Biosolids (Mar. 2012), pp. 1128-1139. 54, Issue 7, pp. 1711-1724, Jul. 2008. Lian, Jieniet al., Separation, hydrolysis and fermentation of pyrolytic Smith, Matthew et al., Integrating Pyrolysis and Anaerobic Diges Sugars to produce ethanol and lipids, Bioresource Technology V. 101 tion, The Northwest Bio-energy Symposium, Nov. 13, 2012, Seattle, (Dec. 2010), pp. 9688-9699. Washington. Office Action for U.S. Appl. No. 13/826,507 dated Jul. 7, 2014. Laemsak, Nikhom, Wood Vinegar presentation, Undated. Office Action for U.S. Appl. No. 13/826,507 dated Mar 18, 2015. Jones, S. B. et al.: Production of Gasoline and Diesel from biomass Advisory Action for U.S. Appl. No. 13/826,507 dated May 22, 2015. via Fast Pyrolysis Hydrotreating and Hydrocracking: A Design Zhang, Shou-Yu et al., “Influence of manure types and pyrolysis Case, U.S. Department of Energy, PNNL-18284 Feb. 28, 2009. conditions on the Oxidation behavior manure char”. Bioresource Laird, David A. et al., Sustainable Alternative Fuel Feedstock Oppor Technology 100 (2009) 4278-4283. tunities, Challenges and Roadmaps for Six U.S. Regions; Chapter 16: Pyrolysis and Biochar—Opportunities for Distributed Production * cited by examiner U.S. Patent Mar. 15, 2016 US 9.284,203 B2 US 9,284,203 B2 1. 2 SYNGAS BOMETHANATION PROCESS AND Synthesis gas, also called syngas or producer gas, is a ANAEROBC DIGESTION SYSTEM combination of CO, H, and CO, that results from the thermal degradation of biomass without combustion, through pyroly CROSS-REFERENCES TO RELATED sis orgasification. This process occurs typically attempera APPLICATIONS tures between 500 and 700 deg C with minimal introduction of oxygen, if any. Other components of syngas are water This application is a National Stage Entry of International vapor, methane, light hydrocarbons, particulates and volatile Application No. PCT/CA2013/050037, filed Jan. 21, 2013, impurities. Syngas has a low heat value, for example 120 to which is a non-provisional application of U.S.
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