Effect of pellet die diameter on density and durability of pellets made from high moisture woody and herbaceous biomass

Tumuluru, Jaya Shankar

doi:10.1016/j.crcon.2018.06.002

Title: Effect of pellet die diameter on density and durability of pellets made from high moisture woody and herbaceous biomass

Abstract

Densified products produced from pellet mill are commercially used as a commodity type product for energy applications and is transported nationally and internationally. The quality and specific energy consumption of the pelletized biomass produced depends upon the type of the feedstock, and process variables like moisture content, particle size, die speed, preheating, and steam conditioning. In the present study, pelleting tests were conducted with both woody (i.e., lodgepole pine and pinyon-juniper) and herbaceous (i.e., corn stover, wheat straw, and energy sorghum) biomass. A high level of feedstock moisture content of 33% (w.b.) was selected as a starting point, while the die speed and preheating temperature process variables were kept at 60 Hz and 30°C. There was about 10–13% moisture loss in both woody and herbaceous biomass feedstock during pelleting. The high moisture pellets produced were further dried in a laboratory oven at 70°C for three hours to reduce the moisture content of the pellets to <10% (w.b). The dried pellets were further evaluated for other quality attributes including unit, bulk, tapped density, and durability. Physical properties of the pellets tested after drying indicated that wheat straw, corn stover, and lodgepole pine had unit and bulk densities of >1050 and >600more »« less

Authors:

Publication Date:: Sun Apr 01 00:00:00 EDT 2018

Research Org.:: Idaho National Lab. (INL), Idaho Falls, ID (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

OSTI Identifier:: 1460504

Alternate Identifier(s):: OSTI ID: 1471110

Report Number(s):: INL-JOU-18-50126-Rev000
Journal ID: ISSN 2588-9133; S258891331830019X; PII: S258891331830019X

Grant/Contract Number:: AC07-05ID14517

Resource Type:: Published Article

Journal Name:: Carbon Resources Conversion

Additional Journal Information:: Journal Name: Carbon Resources Conversion Journal Volume: 1 Journal Issue: 1; Journal ID: ISSN 2588-9133

Publisher:: Elsevier

Country of Publication:: India

Language:: English

Subject:: 09 BIOMASS FUELS; high moisture pelleting; corn stover; wheat straw; energy sorghum; lodgepole pine; pinyon-juniper; woody and herbaceous biomass

Citation Formats


                    Tumuluru, Jaya Shankar. Effect of pellet die diameter on density and durability of pellets made from high moisture woody and herbaceous biomass.  India: N. p., 2018. 
Web.  doi:10.1016/j.crcon.2018.06.002.

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                    Tumuluru, Jaya Shankar. Effect of pellet die diameter on density and durability of pellets made from high moisture woody and herbaceous biomass.  India.  https://doi.org/10.1016/j.crcon.2018.06.002

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                    Tumuluru, Jaya Shankar. Sun .  
"Effect of pellet die diameter on density and durability of pellets made from high moisture woody and herbaceous biomass".  India.  https://doi.org/10.1016/j.crcon.2018.06.002.

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@article{osti_1460504,

  title        = {Effect of pellet die diameter on density and durability of pellets made from high moisture woody and herbaceous biomass},

  author       = {Tumuluru, Jaya Shankar},

  abstractNote = {Densified products produced from pellet mill are commercially used as a commodity type product for energy applications and is transported nationally and internationally. The quality and specific energy consumption of the pelletized biomass produced depends upon the type of the feedstock, and process variables like moisture content, particle size, die speed, preheating, and steam conditioning. In the present study, pelleting tests were conducted with both woody (i.e., lodgepole pine and pinyon-juniper) and herbaceous (i.e., corn stover, wheat straw, and energy sorghum) biomass. A high level of feedstock moisture content of 33% (w.b.) was selected as a starting point, while the die speed and preheating temperature process variables were kept at 60 Hz and 30°C. There was about 10–13% moisture loss in both woody and herbaceous biomass feedstock during pelleting. The high moisture pellets produced were further dried in a laboratory oven at 70°C for three hours to reduce the moisture content of the pellets to <10% (w.b). The dried pellets were further evaluated for other quality attributes including unit, bulk, tapped density, and durability. Physical properties of the pellets tested after drying indicated that wheat straw, corn stover, and lodgepole pine had unit and bulk densities of >1050 and >600 kg/m3. Here, the highest durability value of >97% was observed for corn stover, lodgepole pine, and pinyon-juniper.},

  doi          = {10.1016/j.crcon.2018.06.002},

  journal      = {Carbon Resources Conversion},

  number       = 1,

  volume       = 1,

  place        = {India},

  year         = {Sun Apr 01 00:00:00 EDT 2018},

  month        = {Sun Apr 01 00:00:00 EDT 2018}

}

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Works referencing / citing this record:

Improving the Understanding of the Bonding Mechanism of Primary Components of Biomass Pellets through the Use of Advanced Analytical Instruments
journal, August 2019

Anukam, Anthony Ike; Berghel, Jonas; Famewo, Elizabeth Bosede
Journal of Wood Chemistry and Technology, Vol. 40, Issue 1
DOI: 10.1080/02773813.2019.1652324

Pelleting of Pine and Switchgrass Blends: Effect of Process Variables and Blend Ratio on the Pellet Quality and Energy Consumption
journal, March 2019

Tumuluru, Jaya
Energies, Vol. 12, Issue 7
DOI: 10.3390/en12071198

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Title: Effect of pellet die diameter on density and durability of pellets made from high moisture woody and herbaceous biomass

Abstract

Citation Formats

Improving the Understanding of the Bonding Mechanism of Primary Components of Biomass Pellets through the Use of Advanced Analytical Instruments journal, August 2019

Pelleting of Pine and Switchgrass Blends: Effect of Process Variables and Blend Ratio on the Pellet Quality and Energy Consumption journal, March 2019

Improving the Understanding of the Bonding Mechanism of Primary Components of Biomass Pellets through the Use of Advanced Analytical Instruments
journal, August 2019

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journal, March 2019