Tar hydrogenation reduces the aromatics loss rate
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Hydrorefining of the fractions from coal diesel at temperatures below 390 degrees Celsius: how to avoid benzene loss while ensuring that the sulfur and nitrogen levels in the hydrogenated oil are within acceptable limits. I hope the experts will kindly share their insights.
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Before hydrogenation, benzene is extracted; the sulfur and nitrogen levels obtained are still those of the crude oil, and they do not meet the requirements.