Zone or process for improving an efficiency thereof
OwnerWilliam J. Lechnick, Edward P. Zbacnikinventors
Life of this patent
Estimating the term…
Abstract
One exemplary embodiment can be a process for increasing an efficiency of an acid gas removal zone. The process may include passing an absorber-solvent cooling stream through a heat exchanger. Usually, the heat exchanger warms the absorber-solvent cooling stream with a lean solvent stream before removing at least a portion of the carbon dioxide remaining in the absorber-solvent cooling stream and returning a partially-lean solvent stream to an absorber.
Claims20
A process for increasing an efficiency of an acid gas removal zone, comprising:
- A) passing an absorber-solvent cooling stream through a heat exchanger to warm the absorber-solvent cooling stream with a lean solvent stream before removing at least a portion of the carbon dioxide in the absorber-solvent cooling stream;
- and
- B) returning a partially-lean solvent stream to an absorber.
A process for reducing the duty of a lean solvent stream chiller, comprising:
- passing an absorber-solvent cooling stream through a heat exchanger to warm the absorber-solvent cooling stream while cooling a lean solvent stream before the lean solvent stream enters the lean solvent stream chiller.
An acid gas removal zone, comprising:
- A) an absorber adapted to receive a stream comprising at least one of hydrogen sulfide and carbon dioxide, and a lean solvent stream;
- B) a heat exchanger adapted to warm an absorber-solvent cooling stream using the lean solvent stream provided to the absorber;
- C) a high pressure flash drum, a medium pressure flash drum, and a vacuum flash drum adapted to receive the absorber-solvent cooling stream;
- and
- D) a partially-lean solvent stream chiller adapted to receive a partially-lean solvent stream from the vacuum flash drum and to provide the partially-lean solvent stream to the absorber.
Dependencies are inferred from the claim text.