Title:
Evaluation of GHG Mitigation for Power Generation and Ethanol Production Using Sugar Cane Bagasse
Author(s):
Sun, X.-Z., Fujimoto, S., Minowa, T.
Document(s):
Paper
Abstract:
The mitigation of greenhouse gases (GHG) emissions from power generation and two ethanol production options from sugar cane bagasse were compared at grid emission factors ranging from 0.0 to 1.0 kg CO2 eq./kWh. The first ethanol production method (option 1) directly purchased electricity and steam from the grid and factory, and the second ethanol production method (option 2) derived the required electricity and steam from the cogeneration system using the bagasse as boiler fuel. Three levels of technological development were assumed in each option. Data pertaining to GHG emissions from power generation were collected from published studies. A process for ethanol production from sugar cane bagasse was designed, and a simulator was developed to generate the process data using Microsoft Excel. A comparison of the results between power generation and ethanol production show that power generation is the preferential option when the grid emission factors are higher than 0.45 kg CO2 eq./kWh. Option 1 for ethanol production was advantageous in mitigating the GHG emissions when the grid emission factors were lower than 0.20 kg CO2 eq./kWh, and option 2 for ethanol production was the most environmentally beneficial when the grid emission factors were between 0.20 and 0.45 kg CO2 eq./kWh.
Keywords:
ethanol, greenhouse gases (GHG), power generation, sugar cane bagasse
Topic:
Biomass Resources
Subtopic:
Biomass feedstock, residues and by-products
Event:
20th European Biomass Conference and Exhibition
Session:
1BV.1.51
Pages:
363 - 370
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-1BV.1.51
Price:
FREE
