| 21. | These materials are by-products of coal gasification.
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| 22. | Most of the new plants in the state have been coal gasification plants.
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| 23. | It is engaged in development and commercialization of proprietary underground coal gasification technology.
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| 24. | In the early 1960s oil gasification plant was introduced, greatly increasing capacity.
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| 25. | The feed gas was produced by gasification over coal.
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| 26. | Presently underground coal gasification technology is very well developed and in commercial use.
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| 27. | The illustrated gasification process is presented in Figure 2.
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| 28. | Bentzen made a master's degree in gasification of biomass in 1995.
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| 29. | Gasification of fossil fuels is currently widely used on industrial scales to generate electricity.
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| 30. | The heat generated by gasification is also used to co-generate excess electricity.
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