Is Depropanizer bottoms fractionation off-gas vegan?

Gases (petroleum), depropanizer bottoms fractionation off-gas is also known as Depropanizer bottoms fractionation off-gas.

A complex petroleum-derived gas stream obtained as an off-gas from the fractionation of depropanizer bottoms, regulated for its butadiene content. It is a mineral hydrocarbon mixture of non-animal origin.

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