Patent SG-11201406918U-A (SG)
Title: Gas-steam efficient cogeneration process and system based on biomass gasification and methanation
Inventor: YANG WEIGUANG
IPC: F22B1/18
Filed: 2013-04-16
Abstract: (i2) (19) mm m ran=/ ..,_, (10) mwm* (43) gR^^H 2013 ^ 10 13 31 0 (31.10.2013) WIPO I PCT WO 2013/159662 A1 F22B 1/18 (2006.01) PCT/CN2013/074232 2013^4^16 0 (16.04.2013) (51) C10L 3/08 (2006.01) C10L 3/10 (2006.01) (21) Hfictflflf#: (22) (25) Ifff: (26) (30) 201210128134.2 2012^4^27 0 (27.04.2012) CN (71) $i#A: (SUN­ SHINE KAEDI NEW ENERGY GROUP CO., LTD.) [CN/CN]; ^ R\K Hubei 430223 (CN) = (72) IzMX (YANG,Weiguang); Hubei 430223 (CN) = M$k (GONG, Yan); ^ S Mit X M , Hubei 430223 (CN) = M (ZHAN, Xiaodong); 4^ SWb^3^X.TiT Hubei 430223 (CN)= E (SONG, Dechen); ^ Jf&&. ffSicit# —^gfliaicM, Hubei 430223 (CN) = (74) ftIA: (WUHAN KAIYUAN INTELLECTUAL PROPERTY AGENT LTD.); ^ S Mit it SUX?t |X 145 14 M, Hubei 430015 (CN) = (8D I)''): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, (54) Title: GAS-STEAM EFFICIENT COGENERATION PROCESS AND SYSTEM BASED ON BIOMASS GASIFICATION AND METHANATION (54) AA NATURAL GAS PIPELINE BB PRODUCT CC SUBSTITUTE NATURAL GAS DD METHANE CONCENTRATION UNIT EE CRUDE NATURAL GAS FF METHANATION UNIT GG PURIFIED SYNTHETIC GAS HH PURIFICATION UNIT II CRUDE SYNTHETIC GAS JJ TRANSFORMATION UNIT KK GASIFIED GAS LL GASIFICATION UNIT MM OXYGEN NN AIR-SEPARATION DEVICE OO COMBUSTION GAS TURBINE PP INTERMEDIATE PRESSURE SUPERHEATED STEAM QQ STEAM TURBINE CJ 0\ T-H cn i-H o CJ o & (57) Abstract: The present invention provides gas-steam a efficient cogeneration process and system based on biomass gasification and methanation, comprising a biomass gasification unit, a transformation unit, a purification unit, a methanation unit, and a meth - ane concentration unit. The gasification unit utilizes a locally-external constant high-temperature heat source airflow bed which can remarkably improve effective gas compositions of CO and H 2 and improve biomass gasification efficiency. The gasification unit can greatly reduce the quantity of tar produced at a high temperature, improves the carbon conversion rate, and removes investment on a tar removing device. In the process of methanation, the conversion efficiency of CO reaches 100%, and the conversion efficiency of H 2 reaches 99%. Also, a large amount of by-product intermediate pressure superheated steam is produced, and power consumption of a circulation compressor in the traditional methanation process is reduced. The present invention has the advantages that biomass energy can be converted into clean, high-calorific-value, and convenient-for-use natural gas, and large a amount of heat released in the biomass gasification and methanation reaction can be efficiently recycled through a mode of producing high-quality superheated steam. (57) mSI: WO 2013/159662 A11 lllll llllllll II llllll III lllll lllll III III III lllll lllll lllll lllll lllll llll llll lllllll llll llll QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, VC, VN,ZA,ZM,ZWo CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, (84) TG) ° UP): ARIPO (BW, GM, KE, GH, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW), M (AM, _ H 21 &(3)) = AZ, BY, KG, KZ, RU, TJ, TM), (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, 71: > zHj£co^nH 2 nrmmm, ¥^a^co$t^i*ioo%, nmm^99%-, 2 mmmmm ^ tB =