| 1. | Coal liquefaction methods involve carbon dioxide ( ) emissions in the conversion process.
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| 2. | Indirect coal liquefaction ( ICL ) processes operate in two stages.
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| 3. | Coal liquefaction was attempted from 1924 to 1927, but proved unprofitable.
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| 4. | For example, China and India are currently heavily investing in natural gas and coal liquefaction facilities.
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| 5. | Common methods for manufacturing synthetic fuels include the methanol to gasoline conversion, or direct coal liquefaction.
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| 6. | Ultimately, coal liquefaction-derived fuels will be judged relative to targets established for low-greenhouse gas emissions fuels.
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| 7. | Between 1928 and 1944, the Bureau experimented with coal liquefaction by hydrogenation using the Bergius process.
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| 8. | Production plants were merely shut down in the 1880s because crude oil became cheaper than coal liquefaction.
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| 9. | The poultry waste-to-fuel idea was born in 1996, while Stiller was working on a coal liquefaction project.
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| 10. | Germany also relied upon ersatz or synthetic substitutes, such as nitrile rubber or oil obtained through coal liquefaction.
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