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A multi-Hubbert analysis of coal production by Tadeusz Patzek at The University of Texas at Austin and Gregory Croft at the University of California, Berkeley concludes that the global peak of coal production from existing coalfields will occur close to the year 2011. Gt C (15 Gt CO 2 ) per year, according to the study.
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.
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 study will appear next month in the peer-reviewed journal Climatic Change Letters. The study underscores the complex and sometimes conflicting ways in which fossil fuel burning affects Earth’s climate. —Tom Wigley. Methane is an especially potent greenhouse gas. degree Fahrenheit (less than 0.1 degree Celsius). degrees F (0.1-0.2
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. Natural gas. Geothermal.
An Ohio State University team has demonstrated the successful operation of Coal-Direct Chemical Looping (CDCL)—which chemically harnesses coal’s energy and efficiently contains the carbon dioxide produced before it can be released into the atmosphere. Hot iron and coal ash are left behind. 2 millimeters across.
The US Department of Energy (DOE) intends to provide up to $100 million in awards ( DE-FOA-0002116 ) for the Coal FIRST (Flexible, Innovative, Resilient, Small, and Transformative) initiative (announced in November 2018), which aims to develop coal plants of the future that will provide secure, stable, reliable power with near-zero emissions.
Coal and coal production waste contain a wide variety of valuable rare earth elements that can be converted into clean energy technology components. The US currently has more than 250 billion tons of coal reserves, more than 4 billion tons of waste coal, and about 2 billion tons of coal ash at various sites across the country.
A study led by Norwegian climate center CICERO has found that the global warming effect of leaked hydrogen is almost 12 times stronger than that of CO 2. Unlike exhaust from burning coal and gas that contains CO 2 , burning hydrogen emits only water vapor and oxygen. Sand et al. —Dr Sand The GWP100 of hydrogen. Sand et al.
“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.
This FOA, issued in August 2017, is a $50-million funding opportunity for projects supporting cost-shared research and development to design, construct, and operate two large-scale pilots to demonstrate transformational coal technologies. Some of these technologies are now ready to proceed to the large-scale pilot stage of development.
The largest drop in emissions in 2012 came from coal, which is used almost exclusively for electricity generation. During 2012, particularly in the spring and early summer, low natural gas prices led to competition between natural gas- and coal-fired electric power generators. Duke study.
Researchers at The Ohio State University have developed a novel process to clean coal mine drainage and extract rare-earth elements from it. Coal mine drainage (CMD) impairs tens of thousands of kilometers of U.S. CMD, coal mine drainage; TEP, trap-extract-precipitate. Miranda et al. —Jeff Bielicki. Miranda, Jeffrey M.
Keliber, a Finnish mining and battery chemical company that aims to start the sustainable production of battery-grade lithium hydroxide, has analyzed the CO 2 emissions generated by its future production using two studies. The CO 2 emissions are more than 16 tonnes/produced tonne, due to the dominance of coal as the energy source.?.
In addition to its regional and temporal scope, this study is distinct from earlier LCA literature in four key aspects: This study considers the lifetime average carbon intensity of the fuel and electricity mixes, including biofuels and biogas. This results in significantly lower battery production emissions than in earlier studies.
The Congressional bipartisan infrastructure bill includes a proposal for hydrogen-production hubs that could use coal as an energy source. But even such allegedly clean hydrogen could produce high levels of greenhouse-gas emissions, according to a new study published in the journal Energy Science & Engineering.
MP Materials has received a $3-million award from the Department of Energy (DOE) to complete a feasibility study, working with the University of Kentucky (UK), on a system to produce rare earth oxides, metals, and other critical materials recovered from coal by-products. Mountain Pass facility. Source: MP Materials.
Australia-based Woodside has signed an agreement with Japanese companies JERA Inc, Marubeni Corporation and IHI Corporation to undertake a joint study examining the large-scale export of hydrogen as ammonia for use decarbonizing coal-fired power generation in Japan. Green hydrogen is produced from renewable energy using electrolysis.
Renault recently made public the findings of an internal study, published first in October 2011, detailing and comparing the lifecycle assessments (LCAs) of the battery-electric and two internal combustion engined versions (gasoline and diesel) of the Renault Fluence. water, and non-renewable energies (crude oil, coal.) consumption. ?.
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.
A study by Mark Z. Even if you have 100 percent capture from the capture equipment, it is still worse, from a social cost perspective, than replacing a coal or gas plant with a wind farm because carbon capture never reduces air pollution and always has a capture equipment cost. —Mark Jacobson. efficient over 6 months, on average.
A new study of the impact of high EV adoption on the Western US power grid by a team from Pacific Northwest National Laboratory (PNNL) has found that 2028 grid resource adequacy—from generation through transmission—is likely to be sufficient for high EV penetration. Source: PNNL.
A comprehensive three-year scientific study into the air, water and soil impacts of hydraulic fracturing (HF) in coal seam gas (CSG) in Queensland, Australia has found little to no impacts on air quality, soils, groundwater and waterways. —Dr Barrett.
Russian State Corporation Rostec, one of the largest Russian industrial conglomerates, and Chinese State Corporation Shenhua, the world’s leading producer and distributor of coal, have signed a Memorandum of Understanding. High calorific value coal concentrate will be exported to Asia-Pacific countries, mainly to China.
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.
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.
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.
The lab’s flash Joule heating process, introduced several years ago to produce graphene from any solid carbon source ( earlier post ), has now been applied to three sources of rare earth elements—coal fly ash, bauxite residue and electronic waste—to recover rare earth metals. —Deng et al. We have mountains of it.
The study, which is authored by researchers from seven universities, several national laboratories and federal government bodies and other organizations, is published in the journal Science. Modeling has shown climate benefits from coal to NG switching for power generation over all time periods (i.e., Alvarez et al. number of devices).
The partners aim to replace coal-fired power plants with hydrogen-ready gas-fired power plants in Germany, and to build production of low carbon and renewable hydrogen in Norway that will be exported through pipeline to Germany. Germany has an ambition to phase out all coal fired power plants by 2030.
The US Department of Energy (DOE) selected four projects to move on to a second phase of research in their efforts to advance recovery of rare earth elements (REE) from coal and coal byproducts. The solids are from Northern Appalachian and Central Appalachian bituminous coal seams in West Virginia. Earlier post.) 6 million.
million in federal funding to develop conceptual designs of commercially viable technologies that will extract rare earth elements (REEs) from US coal and coal by-product sources. The conceptual designs of each project include an option for up to a $2-million feasibility study. Winner Water Services Inc. Sharon, PA).
Electric vehicles charged in coal-heavy regions can create more human health and environmental damages from life cycle air emissions than gasoline vehicles, according to a new consequential life cycle analysis by researchers from Carnegie Mellon University.
In the Tianjin study, they team fueled a four-cylinder light-duty diesel engine fueled with CFT and DF, identifying 13 individual carbonyl compounds in the exhaust. Other research has shown that carbonyls directly influence physiological response to diesel exhaust particles and can also contribute to secondary organic aerosol formation.
A new study by Charles J. The Stanford study considered a future US grid where up to 80% of the electricity comes from renewables. Lead-acid batteries had an ESOI value of 2, the lowest in the study. Coal- and natural gas-fired power plants are responsible for at least a third of those emissions. Click to enlarge.
Cities restricted the number of cars on the road, coal-fired power plants reduced emissions or were shuttered and replaced with natural gas. Their study is published in Proceedings of the National Academy of Sciences (PNAS). Over the course of five years, PM 2.5 concentrations in eastern China have fallen nearly 40%.
DOE has supported a range of potentially transformational coal technologies aimed at enabling step-change improvements in coal-powered systems. Phase II (Design) selected projects will complete a front-end engineering design study, and complete the National Environmental Policy Act process.
Plans in Europe to place a small number of coal plants on temporary standby would only add 1.3% The post An increase in Europe’s coal power would be ‘negligible’ – study appeared first on Electrek.
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.
Under current policies, home energy storage systems would also often increase carbon emissions, according to a study by a team of researchers at the University of California San Diego published in the journal Environmental Science & Technology.
In 2003 JEC issued its first Well-to-Wheels study, a type of analysis which takes into account the entire energy lifecycle of fuels and powertrains and their possible combinations. In this study, the researchers modeled only biofuels produced from land already in arable use. ICE-based vehicles and fuels. not for combustion).
One of the easiest ways for electric-car drivers to get in an argument is discussing how much coal-fired electricity contributes to pollution. Now a new study by BNEF (a Bloomberg spinoff) can help give electric-car drivers some peace of mind in these arguments.
cents for coal, and 1 cent for natural gas per kWh. Dry steam and flash geothermal energy plants emit about 5% of the carbon dioxide, 1% of the sulfur dioxide, and less than 1% of the nitrous oxide emitted by a coal-fired plant of equal size; and binary geothermal plants produce near-zero emissions.
Epidemiological studies have reported negative impacts of pollution on the cardiovascular system but the effects on specific diseases were unclear. Using PM 10 levels published by the Chief Inspectorate for Environmental Protection in Poland, six unpolluted cities and five polluted cities were selected for the study.
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