Assertion: hydrogenating acetylene | /r/AtLocation | a crude olefin stream
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Source sentences:
text: For example, the methods as otherwise described herein can be conducted to selectively hydrogenate acetylene contained in a crude olefin stream produced by cracking (i.e., a raw-gas hydrocarbon feed), or the overhead stream of a system for separating C 3 hydrocarbons (i.e., a de-propanizer) or C 2 hydrocarbons (i.e., a de-ethanizer) from an olefin stream.