http://www.anl.gov/PCS/acsfuel/preprint%20archive/Files/12_3_ATLANTIC%20CITY_09-68_0220.pdf
We first remind you of an earlier report, now posted on the West Virginia Coal Association's Research and Development site as: 1915 CO2 Recycling | Research & Development | News , and wherein is disclosed "United States Patent 1,163,922 - Producing Carbon Monoxid from Carbon Dioxid", which detailed, in 1915, how we could make Carbon Monoxide by reacting Carbon Dioxide with hot Coal.
In that report, we emphasized the value of such Carbon Monoxide by including within it a second link, to:
United States Patent: H000243 - "US Patent H000243; Hydrocarbons from Carbon Monoxide and Water; 1987; Assignee: The United States of America", which discloses a "method for the reaction of a mixture of carbon monoxide, hydrogen and water for the production of at least one carbonaceous product selected from the group consisting of hydrocarbons, alcohols and mixture thereof".
Herein, via the initial link in this dispatch and the attached file, we see that our own United States Government had, prior to issuance of that patent, already further enhanced the technology for utilizing Carbon Monoxide, which, as in United States Patent 1,163,922, we can make by reacting Carbon Dioxide with hot Coal, by reacting, in order to synthesize valuable hydrocarbons, such Carbon Monoxide with both Water and --- more Coal.
Comment follows excerpts from a USBM report that file data indicates was completed back in 1968:
"The Hydrogenation of Coal with Carbon Monoxide and Water
By: Herbert R. Appell and Irving Wender; Pittsburgh Coal Research Center, Bureau of Mines,
The hydrogenation of coal with carbon monoxide and water was reinvestigated with the objective of preparing an oil which could then be converted to more volatile fuels by known hydrocracking techniques.
The effects of temperature, pressure and time on the conversion of coal to benzene soluble and volatile materials using carbon monoxide and water are shown ... . The conversion increases with temperature (and, the) conversions of bituminous coal are increased considerably by the phenanthrene solvent.
(In confirmation of many of our earlier reports, a primary Coal oil, "phenanthrene", as can be recovered from Coke ovens, is seen to, by acting as a "solvent", facilitate the conversion of Coal "to benzene soluble and volatile materials".)
A striking feature of the solubilization of lignite with carbon monoxide and water is the rapidity of the reaction; conversion t o benzene-solubles at the optimum conditions seems to be essentially complete in about 10 minutes.
(And, the following is important. It's significance should be obvious.)
The reaction of lignite with hydrogen is slower. After 10 minutes of reaction, the solubilization is less than half that obtained with carbon monoxide and water.
(In other words: Carbon Monoxide - as we can make from Carbon Dioxide and hot Coal, and plain old Water, together, do a better job of hydrogenating Coal than the much more expensive pure Hydrogen.,)
(There is a) reduction in sulfur ... during solubilization (and the conversion can be) conducted with more water and a higher carbon monoxide pressure ... in order to obtain a high conversion without a solvent (wherein the) product was a pourable oil ."
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So, not only can Carbon Monoxide, which we've known how to efficiently make from Carbon Dioxide and Coal, for, as in US Patent 1,163,922, essentially one century, be mixed with plain old Water, and then utilized "to obtain a high conversion" of more Coal into "a pourable oil", but, such conversion can, if wanted, be accomplished "without a solvent".