scholarly journals An Overview of Bioenergy with Carbon Capture and Storage Process as a Negative Emission Technology

2020 ◽  
Keyword(s):  
Carbon Capture ◽  
Carbon Capture And Storage ◽  
Capture Process ◽  
Negative Emission ◽  
Geological Formation ◽  
Integrated Policy ◽  
Reduce Carbon Emission ◽  
Global Warming Targets ◽  
Economic Constraints ◽  
And Storage

Projections of the pathways that reduce carbon emission to the levels consistent with limiting global average temperature increases to 1.5°C or 2°C above پاره-p990industrial levels often require negative emission technologies like bioenergy with carbon capture and storage (BECCS), it involves the conversion of biomass to energy, producing CO2 which is sequestered, transported and then permanently stored in a suitable geological formation. The potential of BECCS to remove CO2 from the atmosphere makes it an attractive approach to help achieving the ambitious global warming targets of COP 21. BECCS has a range of variables such as the type of biomass resource, the conversion technology, the CO2 capture process used and storage options. Each of the pathways to connect these options has its own environmental, economic and social impacts. This study gives an overview of Bioenergy with carbon capture and storage for the purpose of carbon mitigation while the challenges associated with using biomaterial was assessed, such as land use, water consumption and its economic constraints. The more certain way forward to underpin BECCS deployment, is to ensure that there is strong social support and integrated policy schemes that recognize, support and reward negative emission, for without negative emissions delivered through BECCS and perhaps other technologies, there is little prospect of the global targets agreed to at Paris, being met.

scholarly journals BECCS and DACCS as Negative Emission Providers in an Intermittent Electricity System: Why Levelized Cost of Carbon May Be a Misleading Measure for Policy Decisions

2021 ◽  
Vol 3 ◽  
Author(s):  
Mariliis Lehtveer ◽  
Anna Emanuelsson
Keyword(s):  
Carbon Capture ◽  
Carbon Capture And Storage ◽  
Total System ◽  
Solar Pv ◽  
Levelized Cost Of Electricity ◽  
Electricity System ◽  
Levelized Cost ◽  
Negative Emissions ◽  
Negative Emission ◽  
And Storage

Carbon dioxide removal (CDR) from the atmosphere is likely to be needed to limit global warming to 1.5 or 2°C and thereby for meeting the Paris Agreement. There is a debate which methods are most suitable and cost-effective for this goal and thus deeper understanding of system effects related to CDR are needed for effective governance of these technologies. Bio-Energy with Carbon Capture and Storage (BECCS) and Direct Air Carbon Capture and Storage (DACCS) are two CDR methods, that have a direct relation to the electricity system—BECCS via producing it and DACCS via consuming. In this work, we investigate how BECCS and DACCS interact with an intermittent electricity system to achieve net negative emissions in the sector using an energy system model and two regions with different wind and solar resource conditions. The analysis shows that DACCS has a higher levelized cost of carbon (LCOC) than BECCS, implying that it is less costly to capture CO2 using BECCS under the assumptions made in this study. However, due to a high levelized cost of electricity (LCOE) produced by BECCS, the total system cost is lower using DACCS as negative emission provider as it is more flexible and enables cheaper electricity production from wind and solar PV. We also find that the replacement effect outweighs the flexibility effect. Since variations in solar-based systems are more regular and shorter (daily cycles), one could assume that DACCS is better suited for such systems, whereas our results point in the opposite direction showing that DACCS is more competitive in the wind-based systems. The result is sensitive to the price of biomass and to the amount of negative emissions required from the electricity sector. Our results show that the use of the LCOC as often presented in the literature as a main indicator for choosing between different CDR options might be misleading and that broader system effects need to be considered for well-grounded decisions.

scholarly journals Carbon capture and storage: The ten year challenge

2010 ◽  
Vol 224 (3) ◽  
pp. 505-518 ◽  
Author(s):  
H Chalmers ◽  
J Gibbins
Keyword(s):  
Carbon Capture ◽  
Fossil Fuels ◽  
Technology Development ◽  
Carbon Capture And Storage ◽  
Full Potential ◽  
Fossil Carbon ◽  
Commercial Scale ◽  
Geological Formation ◽  
Dangerous Climate Change ◽  
And Storage

Carbon capture and storage (CCS) could play a significant role in reducing global CO2 emissions. It has the unique characteristic of keeping fossil carbon in the ground by allowing fossil fuels to be used, but with the CO2 produced being safely stored in a geological formation. Initial versions of the key component technologies are at a sufficient level of maturity to build integrated commercial-scale demonstration plants. If CCS is to reach its full potential to contribute to global efforts to mitigate the risk of dangerous climate change, it is urgent that a number of actions begin now in order to be ready for CCS deployment from around 2020 using proven designs that can be built in large numbers. This article discusses some key challenges for CCS, with a focus on development in the next decade, highlighting the potential benefits of a two tranche programme for integrated commercial-scale demonstration to develop proven reference plant designs and reviewing the importance of distinguishing between different classes of CCS according to their ability to significantly reduce CO2 emissions associated with fossil fuel use. It also identifies some ongoing CCS projects and initiatives and examines some possible implications of current policy discussions for technology development.

scholarly journals Comparative Analysis of Three Different Negative Emission Technologies, BECCS, Absorption and Adsorption of Atmospheric CO2

2021 ◽  
Vol 31 (3) ◽  
pp. 99-117
Author(s):  
Saeed Talei ◽  
Zahra Soleimani
Keyword(s):  
Carbon Capture ◽  
Carbon Capture And Storage ◽  
Industrial Condition ◽  
Limiting Factors ◽  
Average Temperature ◽  
Negative Emission ◽  
Single Process ◽  
And Storage ◽  
Negative Emission Technologies ◽  
Change Mitigation

Abstract Negative Emission Technologies (NETs) are generally considered as vital methods for achieving climate goals. To limit the rise in the global average temperature below 2 °C, a large number of countries that participated in the Paris agreement was virtually unanimous about the effective collaboration among members for the reduction of CO2 emissions throughout this century. NETs on the ground that can remove carbon dioxide from the atmosphere, provide an active option to achieve this goal. In this contribution, we compare limiting factors, cost, and capacity of three different NETs, including bioenergy with carbon capture and storage (BECCS), absorption and adsorption. Although there are several advantages for capturing CO2, still some constraints regarding the high operational cost of NETs and industrial condition of these technologies as a method of climate change mitigation is not clear. Thereby no single process can be considered as a comprehensive solution. Indeed, any developed technologies, in turn, have a contribution to the reduction of CO2 concentration. Extensive research needs to be done to assess and decrease NETs costs and limitations.

Sign in / Sign up

Export Citation Format

Share Document