Post-combustion carbon capture and storage (CCS) is an important technology to reduce CO2 emissions from the electricity and industrial sectors. Despite the mounting concerns about global water scarcity and its impact on energy production, the potential hydrological consequences of large-scale CCS have not yet been explored. Here we simulate the impacts on water resources that would result from retrofitting global coal-fired power plants (CFPP) with four different CCS technologies. We find that 43% of global CFPP capacity currently experience water scarcity at least one month per year and 32% experience scarcity for five or more months during the year. Addition of CCS does increase water scarcity, and the extent to which it does so depends on the technology. We show that the choice of what CFPP to retrofit and what CCS technologies to deploy will be essential in preventing additional water scarcity. If CCS were to be pursed, facilities not affected by water scarcity should be selected. Globally coal-fired plants account for 38% of electricity generation 1 and 19% (8.9 Gt CO2 y-1) of total CO2 emissions 2. Coal generation is also a primary source of toxic airborne emissions globally 3. Despite the growing reliance on renewable energy and the recent policy efforts aimed at reducing the use of coal 4 , today the global coal dependence for power generation is the same as twenty years ago 1. Since the turn of the 21 st century, population growth, increasing affluence, and industrialization in developing countries have demanded an unprecedented growth in coal Deleted: use a global biophysical monthly hydrological 31 analysis to … 32 Deleted: existing 33 Deleted: By retrofitting global CFPP with CCS, water 34 consumption and withdrawals from CFPP would more 35 than nearly double.
Bioenergy with carbon
capture and sequestration (BECCS) is critical
for stringent climate change mitigation but is commercially and technologically
immature and resource intensive. State and federal fuel and climate
policies can drive first markets for BECCS in California. We develop
a spatially explicit optimization model to assess niche markets for
renewable natural gas (RNG) production with carbon capture and sequestration
(CCS) from waste biomass in California. Existing biomass residues
produce biogas and RNG and enable low-cost CCS through the upgrading
process and CO2 truck transport. Under current state and
federal policy incentives, RNG-CCS can avoid 12.4 mmtCO2e/year (3% of California’s 2018 CO2 emissions),
of which 2.9 mmtCO2/year are captured and sequestered.
It simultaneously produces 93 PJ RNG/year (4% of California’s
2018 natural gas demand) with a profit maximizing objective, resulting
in profits of $11/GJ. Distributed RNG production with CCS can potentially
catalyze markets and technologies for CO2 capture, transport,
and storage in California.
1992 magnetic resonance, nuclear quadrupole resonance magnetic resonance, nuclear quadrupole resonance (solids and liquids) D 6560
-013Magnetic Resonance Studies of Ammonia Adsorption and Decomposition on Titania-Supported Vanadia Catalysts -(in situ proton and deuteron single-resonance NMR; detection of coordinatively adsorbed ammonia, NH+ 4, and decomposed species assigned to NH2, and surface hydroxyls). -(WENT, M. S.; REIMER, J. A.; J.
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