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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.
Battery electric vehicles are only as clean as the energy source used to generate the electricity that powers them. 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. Natural gas. from coal.
However, they also noted, high PTW efficiencies and the moderate fuel economies of current compressed natural gas vehicles (CNGVs) make them a viable option as well. If CNG were to be eventually used in hybrids, the advantage of the electric generation/EV option shrinks. Their open access paper is published in the journal Energy.
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 is especially important for assessing the GHG emissions of PHEVs.
South Africa state-owned power utility Eskom reports that a design study is currently under way for an underground coal gasification (UCG) demonstration plant, which will include a 250,000 Nm 3 /h gas production plant and a 100 MW to 140 MW gas turbine plant. The coal seam lies between 280 m and 300 m deep.
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.
The base results from a study by a team at the Center for Transportation Research, Argonne National Laboratory indicate that shale gas life-cycle greenhouse gas (GHG) emissions are 6% lower than conventional natural gas, 23% lower than gasoline, and 33% lower than coal. However, the environmental impacts (e.g.,
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. General Electric. Phase I projects. Organization. Description. Babcock & Wilcox Company.
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.).
A new assessment of the viability of coal-to-liquids (CTL) technology by researchers from the MIT Joint Program on the Science and Policy of Global Change (JPSPGC) found that without climate policy, CTL has the potential to account for around a third of global liquid fuels by 2050. of global electricity demand. Credit: Chen et al.,
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. efficient over 6 months, on average.
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. The liquids output capacity of CTL plants is 50,000 barrels/day. Source: Mantripragada and Rubin.
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. and Chubu Electric Power Company Inc.
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)
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.
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. The largest transmission congestions were in California.
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. Gas Conditioning. Additionally, the Clinton coal fluidizes well.
Technology warming potential (TWP) for three sets of natural gas fuel-switching scenarios. (A) 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. Source: Alvarez et al. Click to enlarge.
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
Life-cycle GHG emissions from fossil and alternative sources of electricity. The authors are Pushker Kharecha and James Hansen from NASA Goddard Institute for Space Studies & Columbia University Earth Institute (GISS); Charles Kutscher from the National Renewable Energy Laboratory; and Edward Mazria from 2030 Inc./ Kharecha et al.
The US Department of Energy has selected 7 projects to participate in the University Coal Research (UCR) program. The projects aim to improve the basic understanding of the chemical and physical processes that govern coal conversion and utilization, by-product utilization, and technological development for advanced energy systems.
Overview of the bluegas catalytic coal methanation process. The projects would be developed using GreatPoint’s proprietary bluegas technology, which utilizes catalytic hydromethanation to create pure hydrogen and substitute natural gas (SNG) that is pipeline-ready in a single-stage gasification process. Click to enlarge.
One possible scenario for the electricity system in the Western US in 2026-29. Under a range of resource cost scenarios, most coal power plants would be replaced by solar, wind, gas, and/or nuclear generation, with intermittent renewable sources providing at least 17% and as much as 29% of total power by 2030. 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.
The US Department of Energy (DOE) has selected eight new projects to further advanced coal research under the University Coal Research Program. The selected projects are intended to improve coal conversion and use and will help propel technologies for future advanced coal power systems. DOE Share: $300,000).
Researchers at The Ohio State University have used a chemical looping process to produce hydrogen from hydrogen sulfide gas—commonly called “sewer gas”. 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.
Researchers from Northwestern University and Princeton University have explored the impact on US air quality from an aggressive conversion of internal combustion vehicles to battery-powered electric vehicles (EVs). coal, oil, natural gas, and biomass). Winter O 3 increases due to reduced loss via traffic NO x. Winter while PM 2.5
by Michael Sivak, Sivak Applied Research The overall advantage of battery electric over gasoline vehicles, in terms of well-to-wheels emissions of greenhouse gases, has been well documented. However, the emissions of electric vehicles depend greatly on the energy source used to generate the electricity that powers them.
A new study by Charles J. As the percentage of electricity supply from wind and solar increases, grid operators will need to employ strategies and technologies, including energy storage, to balance supply with demand given the intermittency of the renewable supply. Lead-acid batteries had an ESOI value of 2, the lowest in the study.
The US-China Electric Vehicles Initiative builds on the first-ever US-China Electric Vehicle Forum in September 2009. The two leaders emphasized their countries’ strong shared interest in accelerating the deployment of electric vehicles in order to reduce oil dependence, cut greenhouse gas emissions and promote economic growth.
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.
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. The study modeled deployment across a wide range of regions, utilities and battery operation modes.
gasified coal—by eliminating the coking problem. The resulting lower-temperature SOFCs could provide a cleaner, more efficient alternative to conventional power plants for generating electricity from coal reserves. An open access paper on their work was published 21 June in the journal Nature Communications.
A new study by Michael Wang and Jeongwoo Han at Argonne National Laboratory and Xiaomin Xie at Shanghai Jiao Tong University assesses the effects of carbon capture and storage (CCS) technology and cellulosic biomass and coal co-feeding in Fischer-Tropsch (FT) plants on energy use and greenhouse gas (GHG) emissions of FT diesel (FTD).
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.
Rice University researchers have determined a more effective way to use natural gas to reduce climate-warming emissions would be in the replacement of existing coal-fired power plants and fuel-oil furnaces rather than burning it in cars and buses.
Syngas Limited has raised A$530,000 (US$532,000) via a share placement to contribute toward the continued development of the proposed coal-and-biomass-to-liquids Clinton Project in South Australia. Coal is the primary feedstock, supplemented with non-food biomass to reduce carbon emissions. First production is targeted for mid-2015.
They also found that the total costs of ownership (TCO) of the electric and diesel trucks are similar. Over an array of possible conditions, the median TCO of electric trucks is 22% less than that of diesel trucks on the NYCC. However, the cost-competitiveness of the electric truck diminishes in drive cycles with higher average speed.
Coal-powered synthetic natural gas (SNG) plants being planned in China would produce seven times more greenhouse gas emissions than conventional natural gas plants, and use up to 100 times the water as shale gas production, according to a new study by Duke University researchers published in the journal Nature Climate Change.
WTW energy demand and GHG emissions for EV and PHEV drivetrains for various electricity sources; gasoline ICE vehicle is solid square, hybrid the hollow square. The study by a team at the Swiss Federal Institute of Technology Zurich, reported in the Journal of Power Sources , is novel in three respects, the researchers said.
Patterned portions represent GHG emissions associated with electric propulsion. Solid left bar = hydro electricity scenario.) A new study by researchers at the University of Toronto examines the impact of the interaction between driving patterns (distance and conditions) and the mode of electricity generation (e.g.,
Although hydropower is broadly considered to be much more environmentally friendly than electricity generated from fossil fuels (e.g., Although hydropower is broadly considered to be much more environmentally friendly than electricity generated from fossil fuels (e.g.,
The Geothermal Energy Association (GEA) has released an update to a 2005 paper published in the Electricity Journal that explored the beneficial externalities associated with using geothermal power instead of fossil fuels by comparing emissions levels of different fuel sources. cents for coal, and 1 cent for natural gas per kWh.
has been chosen to provide the coal gasification technology for the Taylorville Energy Center (TEC), a 730-megawatt (gross) advanced coal generating plant being developed near Taylorville, Ill. TEC will be one of the first commercial-scale, coal gasification plants with carbon capture and storage (CCS) capability in the US. .
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