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6 bytes added ,  03:51, July 13, 2016
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Butylene (C<sub>4</sub>H<sub>8</sub>) is an [[olefinic]] [[hydrocarbon]] recovered from refinery processes.
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'''Butylene''' (C<sub>4</sub>H<sub>8</sub>) is an [[olefinic]] [[hydrocarbon]] recovered from refinery processes.
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[[category:energy]]
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[[Category:Energy]]
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