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Researchers at MIT have developed a method that could significantly boost the performance of carbon capture and conversion systems that use catalytic surfaces to enhance the rates of carbon-sequestering electrochemical reactions. This output can help to subsidize the process, offsetting the costs of reducing greenhouse gas emissions.
A study by a team of researchers from Technische Universität Berlin (TUB) and Fritz-Haber-Institut der Max-Planck-Gesellschaft has found that direct seawater splitting for hydrogen production has substantial drawbacks compared to conventional water splitting and offers almost no advantage. Additionally, H 2 O is needed for water splitting.
A study by a team at University of Illinois at Urbana−Champaign has found that, with currently achievable performance levels, synthetic fuels produced via the electrochemical reduction of CO 2 and the Fischer-Tropsch (FT) process system are not economically and environmentally competitive with using petroleum-based fuel. 6b00665.
An analysis by a team in Bangladesh found large air quality and associated health benefits accruing to the residents of Dhaka (the capital of Bangladesh) as a result of the rapid conversion of the motor vehicle fleet to CNG. However, CNG conversion was apparently detrimental from a climate change perspective, as CH 4 emissions increased.
A single-step chemical conversion streamlines what is currently a multi-step process. A new microchannel reactor design further reduces costs while delivering a scalable modular processing system. 3D-printed microchannel mini-reactors greatly increase the efficiency of biofuel chemical conversion.
AC Propulsion and AutoPort , an automotive conversion, restyling and processing company, will partner in engineering, development and conversion to provide an Electric Vehicle conversion prototype and report for the United States Postal Service.
Now, researchers at Imperial College London have shown that bioethanol production from bamboo in China is both technically and economically feasible, as well as cost-competitive with gasoline. An open access paper on their study is published in Biotechnology for Biofuels. —Littlewood et al. Littlewood et al. Click to enlarge.
The study task design steps. A recent study found that an aluminum electric vehicle can cost up to €635 (US$829) less than that its steel counterpart despite the higher cost of aluminum, given equivalent range targets. The next step was the conversion of that EV to a full aluminium space frame electric vehicle.
The FOA intends to bridge the gap between feasibility studies/applied R&D and commercial adoption of geothermal mining technologies by allowing cost-shared analysis of extraction technologies and potential geothermal mining and power production sites.
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 team also suggested that algae systems can be either net energy positive or negative depending on the specific combination of cultivation and conversion processes used. In this new study, reported in the ACS journal Environmental Science & Technology , Clarens et al. Earlier post.) Arrow widths are proportional to mass flows.
Converting CO 2 to usable fuels was the topic of a symposium— CO 2 Conversion: Thermo-, Photo- and Electro-Catalytic —on Sunday at the 246 th National Meeting & Exposition of the American Chemical Society in Indianapolis, Indiana. Recent studies have centered on CO 2 capture, secure storage, and chemical conversions.
Cost of carbon abated for transport applications. Unlike biomethane produced by anaerobic digestion, Bio-SNG is formed by the conversion of thermally-derived syngas—i.e., Cost of carbon abated. Strategically the UK needs to consider the most cost effective approach for decarbonizing, the report notes.
The new PNNL carbon capture and conversion system brings the cost to capture CO 2 down to about $39 per metric ton. This is the first known demonstration of integrated low-temperature thermocatalytic capture and conversion of CO 2 to methanol in an economically viable CO 2 capture solvent. gal ($470/metric ton), is presented.
A study by a team at the University Putra Malaysia concluded that the gasification of empty fruit bunch (EFB), a waste of the palm oil industry, could, if scaled up, produce hydrogen at a supply cost of $2.11/kg The US Department of Energy (DOE) 2015 cost target for hydrogen is $2.00-$3.00/kg The feedstock particle size of 0.3–0.5
Schematic representation of the integrated conversion of hemicellulose and cellulose portions of lignocellulosic biomass to furfural and GVL, using a portion of the GVL as a solvent and the remainder for conversion to butene oligomers as hydrocarbon. 80%) from direct conversion of hemicellulose in corn stover. Alonso et al.
The research, supported by DOE’s BioEnergy Technologies Office (BETO), has implications for the energy efficiency and cost of catalytic upgrading technologies proposed for use in bio-refineries. This has renewed interest in the conversion of ethanol to hydrocarbon blend-stock and other industrial chemicals. market penetration is low.
A report prepared by ISIS (Institute of Studies for the Integration of Systems - Italy) together with Tecnalia (Spain) for the European Parliamentary Research Service (EPRS) discusses the technological, environmental and economic barriers for producing methanol from carbon dioxide, as well as the possible uses of methanol in car transport in Europe.
Now, researchers from the US Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab), collaborating with UCLA and UC Berkeley researchers, suggest that the US can retrofit diesel-electric trains with batteries in a way that is cost-competitive with diesel. The social cost of carbon emissions starts at US$125?t
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.
In their study, published in the ACS journal Environmental Science & Technology they found that—compared to gasoline—the GHG savings from miscanthus-based ethanol ranged between 130% and 156% whereas that from switchgrass ranged between 97% and 135%. Production cost of ethanol is annualized over the simulation period.
The projects conducted through this program are geared toward reducing the cost of coal conversion and mitigating the environmental impacts of fossil-fueled power generation. DOE: $650,000 Non DOE: $162,500 Total: $812,500 (20% cost share). The Pennsylvania State University.
Their analysis suggests that carbon storage loss caused by peatland conversion could be equivalent to as much as 7 years worth of carbon emissions by mining and upgrading (at 2010 levels). To fairly evaluate the costs and benefits of oil sands mining in Alberta, impacts on natural capital and ecosystem services must be rigorously assessed.
Because the use of natural gas for transportation requires compressing, liquefying, or conversion, it is important to determine the best use of natural gas as a transportation fuel. Cost considerations on the total infrastructure or cost of ownership were also outside the scope of this work but are nevertheless important, they team noted.
Selective catalytic reduction is a technically feasible, cost-effective way to achieve the limits on nitrogen oxide (NO x ) emissions from ships mandated by the International Maritime Organization (IMO) for 2016, according to a study released by the International Council on Clean Transportation (ICCT).
Source: “Hidden Costs of Energy”. Source: “Hidden Costs of Energy”. The committee also separately derived a range of values for damages from climate change; the wide range of possibilities for these damages made it impossible to develop precise estimates of cost. Damages are expressed in cents per VMT (2007 USD).
A new study by a team from UC Berkeley and Stanford University suggests that determining the optimal use of biomass to reduce greenhouse gas emissions—i.e, conversion to fuel molecules or to electrons—depends on market and regulatory contexts that are outside the scope of attributional life cycle assessments (LCA).
A new study led by Praveen Kumar at the University of Illinois at Urbana-Champaign, details the links between the hydrologic cycle and large-scale land conversion for the cultivation of bioenergy crops, both now and as growing conditions change in the future. The cost of that should be factored in to the decision making.
By using a water-lean post-combustion capture solvent, (N-(2-ethoxyethyl)-3-morpholinopropan-1-amine) (2-EEMPA), they achieved a greater than 90% conversion of captured CO 2 to hydrocarbons—mostly methane—in the presence of a heterogenous Ru catalyst under relatively mild reaction conditions (170 °C and 2 pressure). Heldebrant, D.,
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 concludes that using ethanol can be a cost-effective approach to increasing the octane rating of the US gasoline pool. A number of studies recently have pointed out that increasing the octane rating of the US gasoline pool (currently ?93 Source: ACS, Hirshfeld et al. Click to enlarge. Earlier post.) E20 95 RON ?
Details of the team’s study appear in the journal ACS Catalysis. The MoP catalyst also produced hydrogen five times as fast as other non-platinum catalysts reported in related studies. This integrated design increases productivity and lowers equipment costs. The catalyst also worked well with seawater.
In their study, the researchers evaluated five hypothetical production routes using different sources of CO 2 and energy. That the costs of carbon capture can be offset by producing valuable fuels or chemical products from CO 2. R indicates reference alternatives not explicitly modeled in this study. —van der Giesen et al.
His paper, Kreutz noted, is only a preliminary scoping study designed to sketch out the rough outlines of each system’s prospective performance and economics as related primarily to GHG. owned by) a power plant; careful integration between the two plants will reduce costs (not studied in detail here). . ~90%) their CO 2 (e.g.
Lignocellulosic biomass, which is the only sufficiently prevalent sustainable resource for conversion into liquid transportation fuels, is the most abundant organic material on Earth. Furfural and 5-HMF are widely recognized renewable chemicals for their conversion into gasoline, jet, and diesel range liquid fuels.
A well-established downstream syngas-to-synfuel conversion process, such as Fischer-Tropsch synthesis, converts the syngas to liquid synfuel for a total projected cost of less than $4/gallon. In addition to the FEEDs being proposed, Westinghouse has chosen to include two special interest areas for investigative study.
A study by researchers at Oklahoma State University concluded that of four perennial grasses that could be grown as dedicated biofuel feedstock crops—bermudagrass, flaccidgrass, switchgrass, and weeping lovegrass—switchgrass is the most efficient in terms of dry biomass per dollar cost. —Mohua Haque. Resources.
The study, said Robert Carling, Director, Transportation Energy Center at Sandia, represents the first true value-chain approach to assessing the feasibility, implications, limitations, and enablers of large-scale production of biofuels in the United States. Conversion technologies are linked to feedstocks. Source: Sandia.
Norwegian-based broad energy company Equinor, gas transmission system operator OGE and steel producer thyssenkrupp Steel Europe have concluded their joint feasibility study started in October 2019 and will continue their cooperation on the topic going forward.
A common farm weed could make a jet fuel with fewer production-related environmental impacts than other biofuels, according to a new lifecycle study by researchers at The Ohio State University. Such techniques can add to the financial cost of growing crops, but reduce their environmental footprints. million l/yr (5 million gal/yr) HRJ.
A paper on their study was published online 3 December in the ACS journal Energy & Fuels. Among the findings and conclusions of the study were: When an engine works around the gasoline stoichiometric ratio (14.5), the increment of methanol in blended fuels has only a slight influence on engine thermal efficiency and energy economy.
A team from Iowa State University and ConocoPhillips, Biofuels R&D performed a techno-economic study examining the fast pyrolysis of corn stover to bio-oil with subsequent upgrading of the bio-oil to naphtha and diesel range fuels. In 2009, a consortium including TI International, ADM, Albemarle and ConocoPhillips was awarded $3.1-million
The relatively poor cost performance of BTL can probably be remedied through technological advancements, they suggested, noting that both the ability to not compete with food production and its environmental performance makes it a likely better option than most agricultural feedstocks. Sunde et al. Click to enlarge. —Sunde et al.
The Pacific Northwest has the diverse feedstocks, fuel-delivery infrastructure and political will needed to create a viable biofuels industry capable of reducing greenhouse gases and meeting the future fuel demands of the aviation industry, according to a newly-released study by Sustainable Aviation Fuels Northwest (SAFN). —SAFN report.
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