Bioenergy with Carbon Capture and Storage Approaches for Carbon Dioxide Removal and Reliable Sequestration Proceedings of a Workshop—in Brief (2018) / Chapter Skim
Currently Skimming:
Bioenergy with Carbon Capture and Storage Approaches for Carbon Dioxide Removal and Reliable Sequestration: Proceedings of a Workshop - in Brief
Bioenergy with Carbon Capture and Storage Approaches for Carbon Dioxide Removal and Reliable Sequestration: Proceedings of a Workshop - in Brief
Pages 1-11
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 1... ...
Invited speakers provided the committee with an overview of biomass production pathways and capacities, implications of various feedstocks, advanced conversion technologies, and capture and storage strategies. Presenters at the workshop also discussed cross-cutting issues that include life cycle impacts of large-scale BECCS deployment, policies and incentives for the implementation of these approaches, and social acceptability barriers.
|
From page 2... ...
The most recent Billion Ton Report,6 published in 2016, utilizes an economic supply curve approach and a resource assumption that considers the currently used biomass upply as a constant quantity, with the potential supply as additional amounts, projecting a base s case scenario of 0.8 billion dry tons of biomass available annually in 2040 at a feedstock price of $60 per dry ton. The major potential biomass sources in 2040 are simulated to be herbaceous energy crops, such as corn stover, switchgrass, and iscanthus, although wood and waste sources are estimated to be of equal importance to add robustness to the m s upply.
|
From page 3... ...
yields more than 100 million tons of potential additional biomass, and forestland resources and agricultural residues yield an additional 100 million tons each. He emphasized that these categories of currently available and unused resources alone would approximately double the current biomass supply with no additional land impacts.
|
From page 4... ...
emissions is sensitive to assumptions for future energy emissions, particularly for the electricity grid, bio nergy conversion efficiency, and e remote community fuel mixes. Estimates of total biomass availability in Canada include 14–20 Mt of available forest harvest residues, of which 8–10 Mt could be retrieved annually at a cost of less than $80 per ton.
|
From page 5... ...
. Lastly, Muchero identified current knowledge gaps, including landscape scale models incorporating individual traits into carbon sequestration estimates and economic models assessing the value of carbon capture at the trait level.
|
From page 6... ...
It is also possible to use enzymes or microorganisms to convert biomass for carbon removal, but these approaches were not discussed at this workshop. While most of these biomass conversion processes focus on producing energy, agricultural and commercial uses for the captured carbon were also discussed.
|
From page 7... ...
Moreover, torrefied biomass can perform similarly or superior to coal in existing coal power plants that utilize pulverized coal. Combustion tests of five torrefied biomass samples compared with Powder River Basin coal conducted at the Western Research Institute revealed differences in grinding, combustion, ash behavior, and a need for modifications for fuel feed and particulate controls.
|
From page 8... ...
Traditional BECCS supply chains consist of some form of biomass being sent to an energy conversion facility, along with carbon capture and transportation to an underground storage facility. She highlighted recent research exploring the deployment of BECCS at scales assumed in integrated assessment models' negative emissions scenarios.
|
From page 9... ...
effects throughout the biofuel life cycle, revealing that the feedstock growth and biomass conversion stages yield the highest GHG emissions. Wang additionally highlighted research conducted using the GREET model that investigated GHG emissions (primarily CO2, methane, and nitrous oxide)
|
From page 10... ...
BECCS POLICY, GOVERNANCE, AND SOCIAL ACCEPTABILITY ISSUES Christopher Galik from North Carolina State University presented an overview of the most prominent public policy and governance issues related to the large-scale deployment of BECCS. He said that the monitoring and evaluation of GHG emissions of bioenergy is a primary consideration due to feedstock choice and geographic targeting implications.
|
From page 11... ...
2018. Bioenergy with Carbon Capture and Storage Approaches for Carbon Dioxide Removal and Reliable Sequestration: Proceedings of a Workshop -- in Brief.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.