[Due to the increasing size of the archives, each topic page now contains only the prior 365 days of content. Access to older stories is now solely through the Monthly Archive pages or the site search function.]
New catalytic system for conversion of CO2 to methanol shows much higher activity than others now in use
August 01, 2014
Scientists at the US Department of Energy’s (DOE) Brookhaven National Laboratory, with colleagues from the University of Seville (Spain) and Universidad Central de Venezuela, have discovered a new, highly active catalytic system for converting carbon dioxide to methanol.
The pure metals and bimetallic systems used for the chemical activation of CO2 usually have low catalytic activity; the new system exhibits significantly higher activity than other catalysts now in use. The new catalyst system converts CO2 to methanol more than a thousand times faster than plain copper particles, and almost 90 times faster than a common copper/zinc-oxide catalyst currently in industrial use.
Study for European Parliament assesses options for turning CO2 into methanol for use in transport
May 25, 2014
|Carbon dioxide recycling in the methanol economy Source: Olah et al. 2009, earlier post. Click to enlarge.|
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.
The study evaluated costs and benefits from a life cycle perspective in order to compare various raw materials for producing methanol and in order to reflect the potential benefits of methanol obtained from CO2. The report concluded that benefits in the medium- and long-term can be anticipated since the obtaining of an alternative fuel using a residual greenhouse gas would allow European dependence on conventional fossil fuels to be cut, and that way the risks in supply security to be minimized.
New nickel-gallium catalyst could lead to low-cost, clean production of methanol; small-scale, low-pressure devices
March 03, 2014
Scientists from Stanford University, SLAC National Accelerator Laboratory and the Technical University of Denmark have identified a new nickel-gallium catalyst that converts hydrogen and carbon dioxide into methanol at ambient pressure and with fewer side-products than the conventional catalyst. The results are published in the journal Nature Chemistry.
The researchers identified the catalyst through a descriptor-based analysis of the process and the use of computational methods to identify Ni-Ga intermetallic compounds as stable candidates with good activity. After synthesizing and testing a series of catalysts, they found that Ni5Ga3 is particularly active and selective. Comparison with conventional Cu/ZnO/Al2O3 catalysts revealed the same or better methanol synthesis activity, as well as considerably lower production of CO.
DOE soliciting projects in advanced coal gasification for high carbon-capture power production and/or liquid fuels
February 26, 2014
The US DOE is soliciting (DE-FOA-0001051) projects for up to $10 million in awards to target technological advancements to lower the cost of producing hydrogen and/or high-hydrogen syngas from coal for use in 90% carbon capture power generation and/or gasification-based liquid (transportation) fuel production: methanol or diesel. Liquid fuel production must be GHG equivalent to conventional petroleum-based processes.
The work is also designed to assure significant reduction in the cost of coal conversion and environmental impacts, enabling coal resources to both improve US economic competitiveness and provide environmental benefits over the globe, according to the DOE.
Converting glycerol from biodiesel production into bio-gasoline
December 16, 2013
A team at the University of Idaho has demonstrated that glycerol, a byproduct from biodiesel production, could be used as a substrate for producing drop-in gasoline-range biofuel. In a paper published in the ACS journal Energy & Fuels, Guanqun Luo and Armando G. McDonald describe their study of converting methanol (MTG) and a mixture of methanol and glycerol (MGTG) into gasoline-range hydrocarbons using a bench-top, fixed-bed microreactor.
The MTG- and MGTG-generated liquids showed a similar composition, mainly methylbenzenes, to regular gasoline, and composition changed as the reaction proceeded to favor heavier aromatics.