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Design and cold flow testing of a Gas-Solid Vortex Reactor demonstration unit for biomass fast pyrolysis

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Abstract
Innovative gas-solid fluidized beds with process intensification capabilities are among the most promising alternatives for the current state of the art in the chemical industry. In the present work the advantages of such a reactor that sustains a rotating fluidized bed with gas-solid slip velocities much higher than those in conventional fluidized beds are illustrated computationally and experimentally. A GasSolid Vortex Reactor (GSVR) demonstration unit is designed to operate at typical biomass fast pyrolysis conditions targeting the production of chemicals and fuels from renewable feedstocks. For the demonstration unit preheated N2 supplies the thermal energy required by the fast pyrolysis process but alternative sources can also be evaluated. A broad range of operation conditions in the 80 mm diameter and 15 mm height GSVR can be evaluated: N2 mass flow rates of 5–10 g s1 and biomass feed mass flow rates of 0.14–1.4 g s1. Particle-free and particulate flow experiments confirmed that the carrier gas is evenly distributed around the GSVR cylindrical chamber as anticipated by computational fluid dynamic simulations. The latter also supported the inclusion of a profiled bottom end wall and a diverging exhaust. Cold flow experiments with biomass confirmed that the GSVR sustains a rotating fluidized bed with average bed height of 10 mm and solids azimuthal velocities of 6–7 m s1.
Keywords
PARTICLE HEAT-TRANSFER, BIO-OIL, FLUIDIZED-BEDS, PHYSICOCHEMICAL PROPERTIES, LIGNOCELLULOSIC BIOMASS, NUMERICAL-SIMULATION, STATIC GEOMETRY, WHEAT-STRAW, WOOD, TEMPERATURE

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Chicago
González Quiroga, Arturo, Pieter Reyniers, Shekhar Kulkarni, Maria del Mar Torregrosa Galindo, Patrice Perreault, Geraldine Heynderickx, Kevin Van Geem, and Guy Marin. 2017. “Design and Cold Flow Testing of a Gas-Solid Vortex Reactor Demonstration Unit for Biomass Fast Pyrolysis.” Chemical Engineering Journal 329: 198–210.
APA
González Quiroga, A., Reyniers, P., Kulkarni, S., Torregrosa Galindo, M. del M., Perreault, P., Heynderickx, G., Van Geem, K., et al. (2017). Design and cold flow testing of a Gas-Solid Vortex Reactor demonstration unit for biomass fast pyrolysis. CHEMICAL ENGINEERING JOURNAL, 329, 198–210. Presented at the 22nd International Conference on Chemical Reactors (CHEMREACTOR) .
Vancouver
1.
González Quiroga A, Reyniers P, Kulkarni S, Torregrosa Galindo M del M, Perreault P, Heynderickx G, et al. Design and cold flow testing of a Gas-Solid Vortex Reactor demonstration unit for biomass fast pyrolysis. CHEMICAL ENGINEERING JOURNAL. 2017;329:198–210.
MLA
González Quiroga, Arturo, Pieter Reyniers, Shekhar Kulkarni, et al. “Design and Cold Flow Testing of a Gas-Solid Vortex Reactor Demonstration Unit for Biomass Fast Pyrolysis.” CHEMICAL ENGINEERING JOURNAL 329 (2017): 198–210. Print.
@article{8536520,
  abstract     = {Innovative gas-solid fluidized beds with process intensification capabilities are among the most promising alternatives for the current state of the art in the chemical industry. In the present work the advantages of such a reactor that sustains a rotating fluidized bed with gas-solid slip velocities much higher than those in conventional fluidized beds are illustrated computationally and experimentally. A GasSolid Vortex Reactor (GSVR) demonstration unit is designed to operate at typical biomass fast pyrolysis conditions targeting the production of chemicals and fuels from renewable feedstocks. For the demonstration unit preheated N2 supplies the thermal energy required by the fast pyrolysis process but alternative sources can also be evaluated. A broad range of operation conditions in the 80 mm diameter and 15 mm height GSVR can be evaluated: N2 mass flow rates of 5--10 g s1 and biomass feed mass flow rates of 0.14--1.4 g s1. Particle-free and particulate flow experiments confirmed that the carrier gas is evenly distributed around the GSVR cylindrical chamber as anticipated by computational fluid dynamic simulations. The latter also supported the inclusion of a profiled bottom end wall and a diverging exhaust. Cold flow experiments with biomass confirmed that the GSVR sustains a rotating fluidized bed with average bed height of 10 mm and solids azimuthal velocities of 6--7 m s1.},
  author       = {Gonz{\'a}lez Quiroga, Arturo and Reyniers, Pieter and Kulkarni, Shekhar and Torregrosa Galindo, Maria del Mar and Perreault, Patrice and Heynderickx, Geraldine and Van Geem, Kevin and Marin, Guy},
  issn         = {1385-8947 },
  journal      = {CHEMICAL ENGINEERING JOURNAL},
  keyword      = {PARTICLE HEAT-TRANSFER,BIO-OIL,FLUIDIZED-BEDS,PHYSICOCHEMICAL PROPERTIES,LIGNOCELLULOSIC BIOMASS,NUMERICAL-SIMULATION,STATIC GEOMETRY,WHEAT-STRAW,WOOD,TEMPERATURE},
  language     = {eng},
  location     = {London, ENGLAND },
  pages        = {198--210},
  title        = {Design and cold flow testing of a Gas-Solid Vortex Reactor demonstration unit for biomass fast pyrolysis},
  url          = {http://dx.doi.org/10.1016/j.cej.2017.06.003},
  volume       = {329},
  year         = {2017},
}

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