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Title: Co2 geological sequestration

Abstract

Human activities are increasingly altering the Earth's climate. A particular concern is that atmospheric concentrations of carbon dioxide (CO{sub 2}) may be rising fast because of increased industrialization. CO{sub 2} is a so-called ''greenhouse gas'' that traps infrared radiation and may contribute to global warming. Scientists project that greenhouse gases such as CO{sub 2} will make the arctic warmer, which would melt glaciers and raise sea levels. Evidence suggests that climate change may already have begun to affect ecosystems and wildlife around the world. Some animal species are moving from one habitat to another to adapt to warmer temperatures. Future warming is likely to exceed the ability of many species to migrate or adjust. Human production of CO{sub 2} from fossil fuels (such as at coal-fired power plants) is not likely to slow down soon. It is urgent to find somewhere besides the atmosphere to put these increased levels of CO{sub 2}. Sequestration in the ocean and in soils and forests are possibilities, but another option, sequestration in geological formations, may also be an important solution. Such formations could include depleted oil and gas reservoirs, unmineable coal seams, and deep saline aquifers. In many cases, injection of CO2 into amore » geological formation can enhance the recovery of hydrocarbons, providing value-added byproducts that can offset the cost of CO{sub 2} capture and sequestration. Before CO{sub 2} gas can be sequestered from power plants and other point sources, it must be captured. CO{sub 2} is also routinely separated and captured as a by-product from industrial processes such as synthetic ammonia production, H{sub 2} production, and limestone calcination. Then CO{sub 2} must be compressed into liquid form and transported to the geological sequestration site. Many power plants and other large emitters of CO{sub 2} are located near geological formations that are amenable to CO{sub 2} sequestration.« less

Authors:
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Director. Office of Science. Office of Basic EnergySciences
OSTI Identifier:
881725
Report Number(s):
LBNL-56644-JArt
R&D Project: 468111; BnR: KC0303010; TRN: US200613%%80
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Journal Article
Journal Name:
Encyclopedic Knowledge Chinese Encyclopedic Press
Additional Journal Information:
Journal Volume: 307; Related Information: Journal Publication Date: 2005
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 29 ENERGY PLANNING, POLICY AND ECONOMY; 58 GEOSCIENCES; ANIMALS; AQUIFERS; CARBON DIOXIDE; COAL SEAMS; ECOSYSTEMS; FOSSIL FUELS; GREENHOUSE EFFECT; GREENHOUSE GASES; HABITAT; HYDROCARBONS; INFRARED RADIATION; POINT SOURCES; POWER PLANTS; SEA LEVEL; SOILS

Citation Formats

Xu, Tianfu. Co2 geological sequestration. United States: N. p., 2004. Web.
Xu, Tianfu. Co2 geological sequestration. United States.
Xu, Tianfu. 2004. "Co2 geological sequestration". United States. https://www.osti.gov/servlets/purl/881725.
@article{osti_881725,
title = {Co2 geological sequestration},
author = {Xu, Tianfu},
abstractNote = {Human activities are increasingly altering the Earth's climate. A particular concern is that atmospheric concentrations of carbon dioxide (CO{sub 2}) may be rising fast because of increased industrialization. CO{sub 2} is a so-called ''greenhouse gas'' that traps infrared radiation and may contribute to global warming. Scientists project that greenhouse gases such as CO{sub 2} will make the arctic warmer, which would melt glaciers and raise sea levels. Evidence suggests that climate change may already have begun to affect ecosystems and wildlife around the world. Some animal species are moving from one habitat to another to adapt to warmer temperatures. Future warming is likely to exceed the ability of many species to migrate or adjust. Human production of CO{sub 2} from fossil fuels (such as at coal-fired power plants) is not likely to slow down soon. It is urgent to find somewhere besides the atmosphere to put these increased levels of CO{sub 2}. Sequestration in the ocean and in soils and forests are possibilities, but another option, sequestration in geological formations, may also be an important solution. Such formations could include depleted oil and gas reservoirs, unmineable coal seams, and deep saline aquifers. In many cases, injection of CO2 into a geological formation can enhance the recovery of hydrocarbons, providing value-added byproducts that can offset the cost of CO{sub 2} capture and sequestration. Before CO{sub 2} gas can be sequestered from power plants and other point sources, it must be captured. CO{sub 2} is also routinely separated and captured as a by-product from industrial processes such as synthetic ammonia production, H{sub 2} production, and limestone calcination. Then CO{sub 2} must be compressed into liquid form and transported to the geological sequestration site. Many power plants and other large emitters of CO{sub 2} are located near geological formations that are amenable to CO{sub 2} sequestration.},
doi = {},
url = {https://www.osti.gov/biblio/881725}, journal = {Encyclopedic Knowledge Chinese Encyclopedic Press},
number = ,
volume = 307,
place = {United States},
year = {Thu Nov 18 00:00:00 EST 2004},
month = {Thu Nov 18 00:00:00 EST 2004}
}