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US 8,894,820 B2Granted
Alkylation apparatus, fractionation zone, and method relating thereto
AssigneeUop LLC
InventorsCharles P. Luebke, David N. Myers
Life of this patent
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Abstract
One exemplary embodiment can be a fractionation zone for an alkylation apparatus. The fractionation zone can be a column adapted to receive a feed including at least one alcohol, water, and at least one ketone. The column may provide an overhead stream including the at least one ketone and a side-stream including the at least one alcohol and water.
Claims4
A fractionation zone for an alkylation apparatus, comprising:
- A) a debutanizer column having a debutanizer feed inlet, a debutanizer overhead conduit, and a debutanizer bottoms conduit for withdrawing a stream comprising at least one alcohol, water, and at least one ketone from the debutanizer column;
- B) a first column having a first column feed inlet in fluid communication with the debutanizer bottoms conduit, a first column overhead, a first column bottoms stream, and a first column recycle inlet;
- and
- C) a second column having a second column inlet in fluid communication with the first column bottoms stream to receive a stream comprising the at least one alcohol, the water, and the at least one ketone from the debutanizer, a second column overhead conduit for a stream comprising the at least one ketone, a side-stream conduit for a stream comprising the at least one alcohol and water, and a second column bottoms conduit in fluid communication with the first column recycle inlet;
- wherein the second column overhead conduit for a stream comprising the at least one ketone is split into a reflux conduit and a purge conduit;
- and
- wherein the side-stream conduit is in fluid communication with an oligomerization reactor.
4 more elements
A fractionation zone for an alkylation apparatus, comprising:
- a first fractionation zone including:
- a debutanizer column having an inlet for receiving a product steam, an overhead stream, and a bottoms stream comprising at least one alcohol, water, and at least one ketone;
- and,
- a second fractionation zone including:
- a first column having a first column feed inlet in fluid communication with the debutanizer bottoms conduit, a first column overhead, a first column bottoms stream, and a first column recycle inlet;
- and, a second column having a second column inlet in fluid communication with the first column bottoms stream to receive a stream comprising the at least one alcohol, the water, and the at least one ketone, a second column overhead stream comprising the at least one ketone, a side-stream comprising the at least one alcohol and water, and a second column bottoms in fluid communication with the first column recycle inlet;
- wherein the second column overhead conduit for a stream comprising the at least one ketone is split into a reflux conduit and a purge conduit;
- and
- wherein the side-stream conduit is in fluid communication with an oligomerization reactor.
6 more elements
Dependencies are inferred from the claim text.