Bottoms products in a distillation column are made of which type of hydrocarbons?

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Multiple Choice

Bottoms products in a distillation column are made of which type of hydrocarbons?

Explanation:
In a distillation column, separation is by boiling point. Lighter fractions rise and exit higher up, while the heaviest, highest-boiling molecules stay at the bottom. So the bottom product is composed of heavies—the long-chain, high-boiling hydrocarbons such as heavy gas oil and residue. The other terms refer to lighter fractions: lights are the low-boiling ends at the top, naptha is a mid-range lighter distillate, and gases are the very light fractions.

In a distillation column, separation is by boiling point. Lighter fractions rise and exit higher up, while the heaviest, highest-boiling molecules stay at the bottom. So the bottom product is composed of heavies—the long-chain, high-boiling hydrocarbons such as heavy gas oil and residue. The other terms refer to lighter fractions: lights are the low-boiling ends at the top, naptha is a mid-range lighter distillate, and gases are the very light fractions.

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