System Hydrodynamics of a 1 MWth Dual Circulating Fluidized Bed Chemical Looping Gasifier

被引:6
作者
Dieringer, Paul [1 ]
Marx, Falko [1 ]
Stroehle, Jochen [1 ]
Epple, Bernd [1 ]
机构
[1] Inst Energy Syst & Technol, Otto Berndt Str 2, D-64287 Darmstadt, Germany
关键词
chemical looping; gasification; hydrodynamics; pilot scale; circulating fluidized bed; dual fluidized bed; cold flow model; COLD FLOW MODEL; SATURATION CARRYING-CAPACITY; SCALING RELATIONSHIPS; HARD COAL; IRON-ORE; GAS; GASIFICATION; COMBUSTION; BIOMASS; ELUTRIATION;
D O I
10.3390/en16155630
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Chemical looping gasification (CLG) is a novel dual-fluidized bed gasification technology that allows for the production of high-calorific syngas from various solid feedstocks (e.g., biomass). Solid circulation between the two coupled fluidized bed reactors, serving the purpose of heat and oxygen transport, is a key parameter for the CLG technology, making system hydrodynamics the backbone of the gasification process. This study serves the purpose to provide holistic insights into the hydrodynamic behavior of the dual-fluidized bed reactor system. Here, special focus is placed on the operational principles of the setup as well as the entrainment from the circulating fluidized bed (CFB) reactors, the latter being the driving force for the solid circulation inside the entire reactor system. Using an elaborate dataset of over 130 operating periods from a cold flow model and 70 operating periods from a 1 MWth CLG pilot plant, a holistic set of ground rules for the operation of the reactor setup is presented. Moreover, a novel easily-applicable approach, solely relying on readily-available live data, is presented and validated using data from the 1 MWth chemical looping gasifier. Thereby, a straightforward estimation of solid entrainment from any CFB setup is facilitated, thus closing a crucial research gap.
引用
收藏
页数:46
相关论文
共 64 条
[41]   Circulating fluidized-bed reactors [J].
Kunii, D ;
Levenspiel, O .
CHEMICAL ENGINEERING SCIENCE, 1997, 52 (15) :2471-2482
[42]  
Kunii D.., 1991, Fluidization engineering
[43]   Using Ilmenite To Reduce the Tar Yield in a Dual Fluidized Bed Gasification System [J].
Larsson, Anton ;
Israelsson, Mikael ;
Lind, Fredrik ;
Seemann, Martin ;
Thunman, Henrik .
ENERGY & FUELS, 2014, 28 (04) :2632-2644
[44]   High H2/CO ratio syngas production from chemical looping co-gasification of biomass and polyethylene with CaO/Fe2O3 oxygen carrier [J].
Liu, Qingyu ;
Hu, Changsong ;
Peng, Bo ;
Liu, Chao ;
Li, Ziwei ;
Wu, Kai ;
Zhang, Huiyan ;
Xiao, Rui .
ENERGY CONVERSION AND MANAGEMENT, 2019, 199
[45]   Designing and operating a cold-flow model of a 100 kW chemical-looping combustor [J].
Markstrom, Pontus ;
Lyngfelt, Anders .
POWDER TECHNOLOGY, 2012, 222 :182-192
[46]   Solid flux measurement in dual fluidized bed processes based on solid samples [J].
Marx, Falko ;
Dieringer, Paul ;
Stroehle, Jochen ;
Epple, Bernd .
FUEL, 2023, 341
[47]   Design of a 1 MWth Pilot Plant for Chemical Looping Gasification of Biogenic Residues [J].
Marx, Falko ;
Dieringer, Paul ;
Stroehle, Jochen ;
Epple, Bernd .
ENERGIES, 2021, 14 (09)
[48]   INFLUENCE OF THE MODEL SCALE ON HYDRODYNAMIC SCALING IN CFB BOILERS [J].
Mirek, P. .
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING, 2016, 33 (04) :885-896
[49]   Biomass-Based Chemical Looping Gasification: Overview and Recent Developments [J].
Nhut Minh Nguyen ;
Alobaid, Falah ;
Dieringer, Paul ;
Epple, Bernd .
APPLIED SCIENCES-BASEL, 2021, 11 (15)
[50]   Development and validation of a 1D process model with autothermal operation of a 1 MWth chemical looping pilot plant [J].
Ohlemueller, Peter ;
Alobaid, Falah ;
Abad, Alberto ;
Adanez, Juan ;
Stroehle, Jochen ;
Epple, Bernd .
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, 2018, 73 :29-41