Presentation is loading. Please wait.

Presentation is loading. Please wait.

Comparative Assessment of Steam Processed pellets produced from wood, straw and switchgrass S M H ASSAN S HAHRUKH, A DETOYESE O YEDUN, A MIT K UMAR 1,

Published byErik Bishop Modified over 9 years ago

Similar presentations

Presentation on theme: "Comparative Assessment of Steam Processed pellets produced from wood, straw and switchgrass S M H ASSAN S HAHRUKH, A DETOYESE O YEDUN, A MIT K UMAR 1,"— Presentation transcript:

1 Comparative Assessment of Steam Processed pellets produced from wood, straw and switchgrass S M H ASSAN S HAHRUKH, A DETOYESE O YEDUN, A MIT K UMAR 1, L INOJ K UMAR, B AHMAN G HIASI, S HAHAB S OKHANSANJ 2 1 Department of Mechanical Engineering, University of Alberta Edmonton, AB, Canada 2 Department of Chemical and Biological Engineering, Vancouver, BC, Canada A DVANCED B IOFUELS S YMPOSIUM July 22 - 24, 2015, Montreal, Canada

2 Presentation Outline  Background and Objective  Pellet Production Supply Chain  Model Development and Validation  Mass and Heat Balance of Steam Pretreatment  Techno-Economic Result  Summary of Result Presentation at BFN, 22-24 July, 2015

3 Background Presentation at BFN, 22-24 July, 2015 Pretreatment helps producing high quality pellets Energy density of regular pellets is 1/8 th of coal High transportation cost of regular biomass and pellets Need for higher utilization of Biomass Low Utilization Cost Issues Pretreatment Low Bulk and Energy density of regular pellets

4 Objectives Conduct Techno-Economic Assessment Cost curves Sensitivity & uncertainty Conduct Energy Analysis Net energy ratio (NER) Sensitivity & uncertainty Develop process model for steam pretreatment of wood, straw and switchgrass Heat and mass balanceData intensive modeling Presentation at BFN, 22-24 July, 2015

5 Pellet Supply Chain Biomass collection Bale formation/ chipping Transportation to pellet plant Pellet production Transportation of pellet to biorefinery Used in biorefinery Supply chain of pellet to a biorefinery (Conventional method) Used in biorefinery Biomass collection Transportation to pellet plant Pellet Production Transportation of pellet to biorefinery Steam pretreatment Bale formation /chipping Steam Pretreatment Supply chain of pellet (produced from pretreated biomass) to a biorefinery Presentation at BFN, 22-24 July, 2015

6 Experimental Material and Method Material Wood, Straw,Switchgrass Moisture content ~ 10%-50% Method Pretreatment carried in 2.6L StakeTech Steam gun with 400g of biomass treated at different temperature and time Steam treated biomass pelletized Presentation at BFN, 22-24 July, 2015

7 Model Input and Validation 1.Boiler unit: Supply of steam at different time and temperature 2.Time: 10 min 3.Temperature: 180-210 ⁰C 2. Steam Pretreatment Unit: Biomass is treated with high pressure steam in batch reactor (Yield reactor considered) Governing Equation: Source: Lam et al. 2013 Presentation at BFN, 22-24 July, 2015

8 Model Input and Validation 3. Pellet mill: produces pellet of 20-30 mm long, 6 mm in diameter, has a heating element operating at 70-100 C. 2. Grinder: Kicks energy constant 100KJ/kg, solid recovery 95% 1.Dryer: operating temperature at 80 C. Presentation at ASABE, 26-29 July,2015 No grinder is required for pellet production of straw and switchgrass

9 Model Validation Result Operation Experimental Energy Consumption (kJ) ASPEN model Predicted Energy Consumption (kJ) WoodStrawSGWoodStrawSG Steam Pretreatment 20977496782095760710 Drying616267318979615669519045 Size reduction15001700 Pelletization492330318500352325 Presentation at BFN, 22-24 July,2015

10 Comparative Heat and Mass Balance Presentation at BFN, 22-24 July,2015 Wood A. Regular Pellet B. Steam Pretreated Pellet

11 Comparative Heat and Mass Balance (Cont’d) Presentation at BFN, 22-24 July,2015 StrawSwitchgrass A. Regular Pellet B. Steam Pretreated Pellet

12 Variation of NER with Pretreatment Temperature and Level Presentation at BFN, 22-24 July,2015

13 Uncertainty Analysis Presentation at BFN, 22-24 July,2015 StrawSwitchgrass Wood

14 Techno-Economic Snapshot Presentation at BFN 22-24 July,2015 StrawForest residue Switchgrass RegularSteam pretreated RegularSteam pretreated RegularSteam pretreated Optimum size (t year -1 ) 190,000250,000190,000290,000190,000230,000 Pellet cost ($ t -1 )122.04188.34116.01183.14116.20192.41 -Capital recovery9.5615.3110.8320.3413.7421.53 - Maintenance cost2.643.682.343.592.583.76 -Field cost52.3458.7528.1932.0825.5729.39 -Transportation cost33.8942.9937.0450.2445.3857.68 -Premium0.00 6.395.505.346.13 -Employee cost7.277.856.586.767.278.53 -Energy cost5.4148.9114.7453.795.4154.50 -Consumable item cost10.9310.869.9010.8410.9310.88 Pellet transportation6.305.506.205.456.806.10 Total pellet delivery cost 128.34193.84122.21188.59123.00198.51

15 Variation of Transportation Cost Presentation at BFN, 22-24 July, 2015

16 Variation of Capital Cost Presentation at BFN, 22-24 July, 2015

17 Variation in Production Cost Presentation at BFN, 22-24 July,2015

18 Sensitivity Analysis - Wood Presentation at BFN, 22-24 July,2015

19 Sensitivity Analysis - Straw Presentation at BFN, 22-24 July,2015

20 Sensitivity Analysis - Switchgrass Presentation at BFN, 22-24 July,2015

21 Uncertainty Analysis Presentation at BFN, 22-24 July,2015 StrawSwitchgrass Wood

22 Summary of Result Energy Energy ratio of regular pelletization process is higher than steam pretreated pellet due to addition of steam as energy source Calorific value of pellet increases by 21% due to steam pretreatment Grinding energy input is zero for straw and switchgrass Cost $/tonne cost of production for steam pretreated pellet is higher than regular pellet due to increased capital cost $/GJ cost production of pellet for both steam treated pellet and regular pellet is similar with approximately 30 cents difference Scaling Steam pretreatment is more effective over a plant size of 270,000 tonnes/yr plant capacity due to economy of scale benefits based on $/GJ Presentation at BFN 22-24 July, 2015

23 Acknowledgement  Bio Fuel Net  University of Alberta  Dr. Shahab Sokhansanj, Dr. Linoj Kumar and Bahman Ghiasi, Department of Chemical Engineering, University of British Columbia Presentation at BFN 22-24 July,2015

24 T HANKS Contact Information: D r. A MIT K UMAR Professor NSERC/Cenovus/Alberta Innovates Associate Industrial Research Chair in Energy and Environmental Systems Engineering Cenovus Energy Endowed Chair in Environmental Engineering Department of Mechanical Engineering, University of Alberta Amit.kumar@ualberta.ca www.energysystems.ualberta.ca +1 780 492 7797 2015 CSBE | SCGAB Annual General Conference July 5 – 8, 2015, Edmonton, AB, Canada

Download ppt "Comparative Assessment of Steam Processed pellets produced from wood, straw and switchgrass S M H ASSAN S HAHRUKH, A DETOYESE O YEDUN, A MIT K UMAR 1,"

Similar presentations

ENERGY SAVING IN STEAM GENERATION AND TRANSPORT IN FOOD INDUSTRY

ENERGY SAVING IN STEAM GENERATION AND TRANSPORT IN FOOD INDUSTRY
Co-firing Biomass with Coal for Power Generation Suthum Patumsawad Department of Mechanical Engineering King Mongkuts Institute of Technology North Bangkok.

Co-firing Biomass with Coal for Power Generation Suthum Patumsawad Department of Mechanical Engineering King Mongkuts Institute of Technology North Bangkok.
Biomass. Biomass Opportunities Significant growth opportunity Industrial wood waste Industrial mill residues Forest residues.

Biomass. Biomass Opportunities Significant growth opportunity Industrial wood waste Industrial mill residues Forest residues.
Energy Management Practices: Rolling Mills 1. Contents Introduction Energy Intensive Processes & Reduction in Energy Expenditure through Innovative Practices.

Energy Management Practices: Rolling Mills 1. Contents Introduction Energy Intensive Processes & Reduction in Energy Expenditure through Innovative Practices.
Opportunities for Growing, Utilizing & Marketing Bio-Fuel Pellets Roger Samson REAP-CANADA Resource Efficient Agricultural Production-Canada Box 125, Ste.

Opportunities for Growing, Utilizing & Marketing Bio-Fuel Pellets Roger Samson REAP-CANADA Resource Efficient Agricultural Production-Canada Box 125, Ste.
Yasunari Matsuno, Ichiro Daigo, Masaru Yamashita

Yasunari Matsuno, Ichiro Daigo, Masaru Yamashita
A novel IGCC system with steam injected H2/O2 cycle and CO2 recovery P M V Subbarao Professor Mechanical Engineering Department Low Quality Fuel but High.

A novel IGCC system with steam injected H2/O2 cycle and CO2 recovery P M V Subbarao Professor Mechanical Engineering Department Low Quality Fuel but High.
Clean Energy Project Analysis Course © Minister of Natural Resources Canada 2001 – 2004. Photo Credut: Bioenerginovator Biomass Heating Project Analysis.

Clean Energy Project Analysis Course © Minister of Natural Resources Canada 2001 – Photo Credut: Bioenerginovator Biomass Heating Project Analysis.
Triple Effect of Reject to Power on Joburg’s Waste Vision

Triple Effect of Reject to Power on Joburg’s Waste Vision
1 Storage of comminuted and uncommunited woody biomass, its effect on fuel quality and modeling for natural wind drying Muhammad Afzal 1, Alemayehu Bedane.

1 Storage of comminuted and uncommunited woody biomass, its effect on fuel quality and modeling for natural wind drying Muhammad Afzal 1, Alemayehu Bedane.
Generation and Control of Vacuum in Furnace

Generation and Control of Vacuum in Furnace
1 Increasing Energy Access while mitigating climate change Case for Energy Efficiency PAUL KIRAI National Project Manager, GEF-KAM ENERGY PROJECT - Kenya.

1 Increasing Energy Access while mitigating climate change Case for Energy Efficiency PAUL KIRAI National Project Manager, GEF-KAM ENERGY PROJECT - Kenya.
BY: Chris Tremblay.  Piece of equipment used to remove moisture from a wet solid by bringing the moisture into a gaseous state.  A drying medium (usually.

BY: Chris Tremblay.  Piece of equipment used to remove moisture from a wet solid by bringing the moisture into a gaseous state.  A drying medium (usually.
SEGI-AT Sp. z o. o.Energy from the biomass2 Production of energy from the biomass - an option for the sustainable development of industrial land.

SEGI-AT Sp. z o. o.Energy from the biomass2 Production of energy from the biomass - an option for the sustainable development of industrial land.
A n I n t r o d u c t I o n t o T h e r m o C h e m R e c o v e r y I n t e r n a t i o n a l, I n c. Biomass and Spent liquor Gasification The Foundation.

A n I n t r o d u c t I o n t o T h e r m o C h e m R e c o v e r y I n t e r n a t i o n a l, I n c. Biomass and Spent liquor Gasification The Foundation.
Module 1: Understanding Bioenergy Resources

Module 1: Understanding Bioenergy Resources
Parallel aerosol sampling with SMPS and LPI in biomass combustion B. Stojkova, M. Hagström, J. B. C. Pettersson, Department of Chemistry, Physical Chemistry,

Parallel aerosol sampling with SMPS and LPI in biomass combustion B. Stojkova, M. Hagström, J. B. C. Pettersson, Department of Chemistry, Physical Chemistry,
Ethanol. Conversion of sugars to ETOH The manufacture of alcoholic beverages originated over 5000 years ago –Water was generally impure and thus fermented.

Ethanol. Conversion of sugars to ETOH The manufacture of alcoholic beverages originated over 5000 years ago –Water was generally impure and thus fermented.
Initial Comparative Process Economics of Leading Pretreatment Technologies Richard T. Elander, National Renewable Energy Laboratory Charles E. Wyman, Dartmouth.

Initial Comparative Process Economics of Leading Pretreatment Technologies Richard T. Elander, National Renewable Energy Laboratory Charles E. Wyman, Dartmouth.
O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 1 Integrated Biomass Supply Analysis & Logistics IBSAL Shahab Sokhansanj and Anthony Turhollow.

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 1 Integrated Biomass Supply Analysis & Logistics IBSAL Shahab Sokhansanj and Anthony Turhollow.

Similar presentations

Ads by Google