Laminar Entrained Flow Reactor (Fact Sheet)

None, None

doi:10.2172/1118070

Title: Laminar Entrained Flow Reactor (Fact Sheet)

Full Record
Other Related Research

Abstract

The Laminar Entrained Flow Reactor (LEFR) is a modular, lab scale, single-user reactor for the study of catalytic fast pyrolysis (CFP). This system can be employed to study a variety of reactor conditions for both in situ and ex situ CFP.

Publication Date:: Sat Feb 01 00:00:00 EST 2014

Research Org.:: National Renewable Energy Lab. (NREL), Golden, CO (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Sustainable Transportation Office. Bioenergy Technologies Office

OSTI Identifier:: 1118070

Report Number(s):: NREL/FS-5100-60638

DOE Contract Number:: AC36-08GO28308

Resource Type:: Technical Report

Resource Relation:: Related Information: National Bioenergy Center, NREL (National Renewable Energy Laboratory)

Country of Publication:: United States

Language:: English

Subject:: 09 BIOMASS FUELS; FAST SCREENING CATALYSTS; CATALYTIC FAST PYROLYSIS; ANALYTICAL PYROLYSIS; THERMOCHEMICAL CONVERSION OF BIOMASS

Citation Formats


                    None, None. Laminar Entrained Flow Reactor (Fact Sheet).  United States: N. p., 2014. 
        Web.  doi:10.2172/1118070.

Copy to clipboard


                    None, None. Laminar Entrained Flow Reactor (Fact Sheet).  United States.  https://doi.org/10.2172/1118070

Copy to clipboard


                    None, None. 2014.  
        "Laminar Entrained Flow Reactor (Fact Sheet)".  United States.  https://doi.org/10.2172/1118070.  https://www.osti.gov/servlets/purl/1118070.

Copy to clipboard


                    
@article{osti_1118070,

  title        = {Laminar Entrained Flow Reactor (Fact Sheet)},

  author       = {None, None},

  abstractNote = {The Laminar Entrained Flow Reactor (LEFR) is a modular, lab scale, single-user reactor for the study of catalytic fast pyrolysis (CFP). This system can be employed to study a variety of reactor conditions for both in situ and ex situ CFP.},

  doi          = {10.2172/1118070},

  url          = {https://www.osti.gov/biblio/1118070},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Sat Feb 01 00:00:00 EST 2014},

  month        = {Sat Feb 01 00:00:00 EST 2014}

}

Copy to clipboard

Technical Report:

View Technical Report

https://doi.org/10.2172/1118070

Save / Share:

Export Metadata

Save to My Library

Similar records in OSTI.GOV collections:

Optimization of Biomass Pyrolysis Vapor Upgrading Using a Laminar Entrained-Flow Reactor System

Journal Article Peterson, Braden; Engtrakul, Chaiwat; Evans, Tabitha; ... - Energy and Fuels

Here, a custom bench-scale continuous-flow catalytic fast-pyrolysis (CFP) reactor system was implemented for the optimization of ex situ CFP and screening of catalysts to gain insight into commercial scale ex situ CFP processes across various reactor types. Operated in an ex situ configuration, tandem laminar entrained-flow pyrolyzer and vapor-phase upgrading reactors were optimized to successfully demonstrate CFP of pine over two different commercial zeolite catalysts. Mixing-enhancers within the vapor-phase upgrader induced laminar flow dynamics with larger Reynold’s numbers, thus enhancing heat and mass transfer and in turn CFP conversion. Real-time analysis of products was accomplished via molecular beam mass spectrometrymore »« less
Cited by 5
https://doi.org/10.1021/acs.energyfuels.0c00649

Full Text Available
Ex situ upgrading of pyrolysis vapors over PtTiO ₂ : extraction of apparent kinetics via hierarchical transport modeling

Journal Article Pecha, M.; Iisa, Kristiina; Griffin, Michael; ... - Reaction Chemistry & Engineering

Chemical reaction kinetics enable predictive scaling studies and process sensitivity analyses that can substantially accelerate commercial deployment of new catalytic transformation technologies. The absence of suitable kinetic parameters for catalytic fast pyrolysis (CFP) of biomass feedstocks has precluded such de-risking simulation activities. In this work we consider ex situ CFP using a Pt/TiO₂ catalyst in a packed bed vapor phase upgrading reactor (VPU) with co-fed H₂. We develop a multiscale simulation framework to de-couple apparent kinetics from both intraparticle and reactor-scale transport phenomena. The transport model is integrated with a kinetic scheme that predicts (1) lumped yields of product partiallymore »« less
https://doi.org/10.1039/D0RE00339E
Vapor-Phase Stabilization of Biomass Pyrolysis Vapors Using Mixed-Metal Oxide Catalysts

Journal Article Edmunds, Charles; Mukarakate, Calvin; Xu, Mengze; ... - ACS Sustainable Chemistry & Engineering

Mixed-metal oxides possess a wide range of tunability and show promise for catalytic stabilization of biomass pyrolysis products. For materials derived from layered double hydroxides, understanding the effect of divalent cation species and divalent/trivalent cation stoichiometric ratio on catalytic behavior is critical to their successful implementation. In this study, four mixed-metal oxide catalysts consisting of Al, Zn, and Mg in different stoichiometric ratios were synthesized and tested for ex-situ catalytic fast pyrolysis (CFP) using pine wood as feedstock. The catalytic activity and deactivation behavior of these catalysts were monitored in real-time using a lab-scale pyrolysis reactor and fixed catalyst bedmore »« less
Cited by 10
https://doi.org/10.1021/acssuschemeng.9b00649

Full Text Available
Pilot-Scale CFP Commissioning: Creative Problem Solving and Lessons Learned

Conference Gaston, Katherine

We have commissioned a pilot-scale, ex-situ catalytic fast pyrolysis (CFP) reactor system in the Thermal and Catalytic Process Development Unit (TCPDU) at the National Renewable Energy Laboratory. The FCC-style CFP system, including a riser and continuous regeneration, was added to the existing half-ton-per-day biomass fast pyrolysis unit and was designed to run a zeolite-type catalyst. The system is unique due to its scale and catalyst flow control scheme. As the design of this system was informed by early data from a bench-scale reactor, several technical scale-up challenges had to be overcome. Additionally, physical constraints and the complexities of biomass vaporsmore »« less
Full Text Available
Multiscale Catalytic Fast Pyrolysis of Grindelia Reveals Opportunities for Generating Low Oxygen Content Bio-Oils from Drought Tolerant Biomass

Journal Article Cross, Phillip; Iisa, Kristiina; To, Anh; ... - Energy and Fuels

Grindelia squarrosa (curlycup gumweed) biomass possesses unique biochemistry, cell wall composition, and leaf architecture tailored for prolific growth in arid and semiarid climates. Most notably, this plant has developed high levels of extractable resins that have high effective H/C_eff ratios ((mol H - 2 x mol O)/mol C), which is hypothesized to lead to low coke formation during catalytic fast pyrolysis (CFP) over the ZSM-5 catalyst. In microscale experiments with high ZSM-5 loadings (biomass-to-catalyst mass ratio (B/C) ~ 0.1), in situ CFP generated high yields of aromatic hydrocarbons (30% carbon yield) while ex situ CFP favored aliphatic hydrocarbons (25% carbonmore »« less
https://doi.org/10.1021/acs.energyfuels.1c02403

Full Text Available

Similar Records