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These results indicate that coal and oil are the energy sources leading to most emissions, and that hydro, wind, and nuclear are the energy sources leading to least emissions. On the two extremes, coal and oil result in about 176 times the emissions from hydro.
The amount of methane released into the atmosphere as a result of coal mining is likely approximately 50% higher than previously estimated, according to research presented at the recent annual meeting of the American Geophysical Union. The study is one of the first to account for methane leaking from old, abandoned mines.
Coal trains and terminal operations add a significant amount of fine particulate matter (PM 2.5 ) pollution to urban areas—more so than other freight or passenger trains— according to a study conducted in Richmond, California, by the University of California, Davis. The results indicate coal trains add on average 8.32
These results indicate that coal and oil are the energy sources leading to most emissions, and that hydro, wind, and nuclear are the energy sources leading to least emissions. On the two extremes, coal and oil result in about 176 times the emissions from hydro. from coal. Energy source. Natural gas. West Virginia.
“Blue” hydrogen—produced through steam methane reforming (SMR) of natural gas or coal gasification, but with CO 2 capture and storage—is being described as having low or zero carbon emissions. Carbon dioxide emissions, including emissions from developing, processing, and transporting the fuels, are shown in orange.
The study, “Estimating US Government Subsidies to Energy Sources: 2002-2008”, found that fossil fuels benefited from approximately $72 billion over the seven-year period, while subsidies for renewable fuels totaled $29 billion. billion went to traditional sources—such as coal and oil—and $2.3 Of the fossil fuel subsidies, $70.2
The National Energy Technology Laboratory (NETL) has released a follow-on study to its 2009 evaluation of the economic and environmental performance of Coal-to-Liquids (CTL) and CTL with modest amounts of biomass mixed in (15% by weight) for the production of zero-sulfure diesel fuel. Earlier post.). —White and Gray.
Flow diagram of coal tar hydrogenation process. Researchers in China report the production of gasoline and diesel from coal tar via an optimized catalytic hydrogenation using two serial fixed beds, the first with a hydrofining catalyst of MoNi/?-Al million tons of coal tar was further processed. Credit: ACS, Kan et al.
Gasoline section shows results for fuel derived from both conventional oil and oil sands. The study found that shale gas (SG) well completion and workover emissions are a much more significant factor as compared to a conventional natural gas (NG) pathway. Expansion bars show the components of fuel production. Click to enlarge.
Sasol and the Indonesian government have signed a preliminary agreement to study the viability of developing a coal-to-liquids facility project in Indonesia, with estimated project cost of more than $10 billion. This is in line with Indonesia’s energy policy, which aims to diversify from oil to coal.”.
Ceres recently released a new report concluding that coal-to-liquid (CTL) and oil shale technologies face significant environmental and financial obstacles—from water constraints, to technological uncertainties to regulatory and market risks—that pose substantial financial risks for investors involved in such projects.
A Technical Feasibility Study (TFS) for a coal-to-methanol (CTM) plant based on the Arckaringa coal resources in Australia has concluded that CTM could be a viable project capable of augmenting the Bankable Feasibility Study (BFS) for Altona Energy’s Arckaringa Clean Energy CTL (coal-to-liquids) and Power Project in South Australia.
The team studied trends in air pollution in Africa to determine impacts on human health and economic development in 54 African countries. In addition to the toll on human health, air pollution imposes economic costs, the study found. billion IQ points across the continent. Economic output lost to air-pollution-related disease was $3.0
Comparison of coal consumption and CO 2 emissions for co-production and separate production of liquids and power. Conventional CTL plant gasifies coal to produce a syngas which is then converted in a Fischer-Tropsch reactor to products. Even with CCS, the liquid product costs are comparable to recent crude oil prices.
Produced water from coal-bed natural gas (CBNG) production may contain sodium bicarbonate (NaHCO 3 ) at concentrations that can harm aquatic life, according to a new study by the US Geological Survey; Montana Fish, Wildlife and Parks; the Bureau of Land Management and the US Environmental Protection Agency.
CO 2 emissions from US coal-fired power plant could be phased out entirely by 2030 using existing technologies or ones that could be commercially competitive with coal within about a decade, according to a paper published online 30 April in the ACS journal Environmental Science & Technology. Credit: ACS, Kharecha et al.
In regions where the share of coal-based electricity is relatively low, EVs can achieve substantial GHG reduction, the team reports in a paper in the ACS journal Environmental Science & Technology. According to the 12 th Five-Year Plan of the China Coal Industry (2011?2015)
Runoff from pavement with coal-tar-based sealant is the primary source of toxic polycyclic aromatic hydrocarbons (PAHs) to streambed sediments in Milwaukee, Wisconsin, according to a US Geological Survey and Milwaukee Metropolitan Sewerage District open-access study published in the journal Environmental Toxicology and Chemistry.
Australia’s Syngas Limited has engaged Rentech to provide Fischer-Tropsch fuels production preliminary engineering services for Syngas’ proposed commercial scale coal and biomass to liquids (CBTL) fuels facility in Southern Australia, known as the Clinton Project. Additionally, the Clinton coal fluidizes well. Gas Conditioning.
The five different fuel groups were those derived: from conventional petroleum; from unconventional petroleum; synthetically from natural gas, coal, or combinations of coal and biomass via the FT process; renewable oils; and alcohols. million bpd. Reduced GHG impact.
Resource managers now have a method to determine the source of oil found in the waters off Southern California and differentiate between naturally seeped oils and those produced by offshore oil and gas production.
2000 (90% CI: 0–4,000) early deaths from ozone, according to the study. The researchers collected data from the year 2005, the most recent data available at the time of the study. Industrial emissions also peaked along the Gulf Coast region, possibly due to the proximity of the largest oil refineries in the United States.
These results indicate that coal and oil are the energy sources leading to most emissions, and that hydro, wind, and nuclear are the energy sources leading to least emissions. On the two extremes, coal and oil result in about 176 times the emissions from hydro. Natural gas 87.9 Geothermal 16.5 Natural gas 87.9
Efforts to shift away from fossil fuels and replace oil and coal with renewable energy sources can help reduce carbon emissions but do so at the expense of increased inequality, according to a new study by researchers at Portland State University (PSU) and Vanderbilt University. —Julius McGee.
coal, oil, natural gas, and biomass). Most studies that have examined the impact of EVs report only changes in the total emissions associated with their adoption, but do not consider their spatial or temporal variation. Locations with more coal-fired power in their energy mix experienced an increase in PM during the summer.
In contrast to arguments that peak conventional oil production is imminent due to physical resource scarcity, a team from Stanford University and UC Santa Cruz has examined the alternative possibility of reduced oil use due to improved efficiency and oil substitution. 2010, to above 140 $/bbl in constant 2010 dollars).
The TCEP would integrate coal gasification, combined-cycle power generation, CO 2 capture, and. In the Permian Basin, approximately one additional barrel of oil can be recovered for each 6,000 cubic feet (6 Mcf) of compressed CO 2 injected into the oil field. urea production. CO 2 capture and shipment via pipeline shown at top.
Overview of the bluegas catalytic coal methanation process. By adding a catalyst to the coal gasification system, GreatPoint Energy is able to reduce the operating temperature in the gasifier, while directly promoting the reactions that yield methane, (CH 4 ). Click to enlarge. Earlier post.).
The NextGen line of oils, with 50% recycled oil, will include conventional, synthetic blend and high mileage offerings. Valvoline, a leading independent marketer of motor oil, has introduced its NextGen line of motor oils, featuring the inclusion of 50% recycled base oil. Click to enlarge.
The US Department of Energy’s (DOE) Office of Fossil Energy (FE) has selected four projects for cost-shared research and development under the funding opportunity announcement (FOA), DE-FOA-0002180, Design Development and System Integration Design Studies for Coal FIRST Concepts.
A detailed study by researchers from China and the US has concluded that Fischer-Tropsch synthetic liquid fuels (FTL) are typically less costly to produce when electricity is generated as a major coproduct than when the plants are designed to produce mainly liquid fuels. published in the ACS journal Energy & Fuels. Guangjian Liu, Eric D.
The US Department of Energy (DOE) selected eight projects to advance the development of transformational oxy-combustion technologies capable of high-efficiency, low-cost carbon dioxide capture from coal-fired power plants. The Energy Department’s $7 million investment—leveraged with recipient cost-share to support approximately $9.4
A) CNG light-duty cars vs. gasoline cars; (B) CNG heavy-duty vehicles vs. diesel vehicles; and (C) combined-cycle natural gas plants vs. supercritical coal plants using low-CH 4 coal. On the one hand, a shift to natural gas is promoted as climate mitigation because it has lower carbon per unit energy than coal or oil.
Given a sufficiently large production scale, liquid fuels such as diesel produced from crop residue could be economically competitive with petroleum-derived fuels at current price levels, suggests a new study by a team from the Stevens Institute of Technology. Their analysis is published in the ACS journal Energy & Fuels. Click to enlarge.
The agreement with Rentech includes working together to evaluate coal and biomass gasification projects for the application of Rentech’s technologies in South Australia, where the Arckaringa Project is located. billion tonne Arckaringa coal resource (of which 1.287 billion tonnes is JORC compliant). Earlier post.) Earlier post.)
The only sector T&E could find with an average carbon intensity higher than truckmakers is coal mining European truckmakers’ emissions are 50% higher than what. continued] The post Truck Manufacturers A More Carbon Intensive Investment Than Oil, Steel Or Cars — Study appeared first on CleanTechnica.
a permit application and commenced the approval process with the Wyoming Department of Environmental Quality (WDEQ) to build and operate a Underground Coal Gasification (UCG) demonstration plant in its coal tenement lease areas in Wyoming’s. km) of coal within the Wyoming PRB. 20ft (6.1m) coal seam at 2100ft (640m).
microns or less (PM 2.5 ) is a form of air pollution produced by motor vehicles and the burning of oil, coal and biomass, and has been shown to enter the circulatory system and negatively affect human health. Researchers examined 1,293 mothers and their children who were part of the large, ongoing Boston Birth Cohort study.
Hydrogen sulfide is emitted from manure piles and sewer pipes and is a key byproduct of industrial activities including refining oil and gas, producing paper and mining. The team first used chemical looping on coal and shale gas to convert fossil fuels into electricity without emitting carbon dioxide into the atmosphere.
billion due to the phenomenon of saturation, according to a new study by Berkeley Lab’s China Energy Group. It is reduced by 900 Mtce to 4600 Mtce in AIS in 2050, a cumulative energy reduction of 26 billion tonnes of coal equivalent from 2005 to 2050. Click to enlarge. Energy demand grows from 2250 Mtce to 5500 Mtce in 2050 under CIS.
Ignite Energy Resources (IER), developer of a supercritical water technology, and TRUenergy have entered into a Memorandum of Understanding (MoU) to develop a commercial demonstration plant that will apply IER’s direct coal-to-oil and upgraded dry coal process to the brown coal at TRUenergy’s Yallourn mine in Australia.
Value of life-cycle emissions externality damages and oil premium costs from vehicles in 2010 $. A paper presenting the results of the group’s latest year-long study on the lifecycle air emissions and oil displacement benefits of plug-in vehicles was published this week in the Proceedings of the National Academy of Sciences.
These facilities typically use approximately one ton of coal to produce one BBL of hydrocarbons, with a life cycle CO 2 emissions calculation that is slightly worse than equivalent fuels derived from conventional oil refining. DGF replaces the coal gasification used by others with biomass gasification and natural gas reforming.
A paper on their study appears in the journal Energy Policy. This study implements three main research contents. (1) Energy demand is able to peak at around 2020, with the peak amount ranging between 86 Mtce and 107 Mtce (million tonnes of coal equivalent), and energy consumption is likely to drop to 70–84 Mtce in 2050.
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