Page 369 - Petroleum and Gas Field Processing

Field stabilization is required for liquid products recovered as explained
before, in order to remove the large quantities of methane and other
volatile hydrocarbons that remain locked in the condensed liquid at high
pressure.
Stabilization methods are described in Chapter 7.

REFERENCES

1. Abdel-Aal, H.K. Surface Petroleum Operations, Saudi Publishing and
Distributing House, Jeddah, 1998.
2. Meyers, R.A. (ed.), Handbook of Petroleum Refining Processes, McGraw-Hill,
New York, 1996.
3. Perry’s Chemical Engineering Handbook, McGraw-Hill, New York, 1999.
4. Rudd, D.F., Powers, G.J., and Sivola, J.J., Process Synthesis, Prentice-Hall,
Englewood Cliffs, NJ, 1973.

REVIEW QUESTIONS AND EXERCISE PROBLEMS

1. To recover and separate NGL from a bulk of gas stream, a change in
phase must occur. What are the two main options that bring in a
change in phase that lead to separating NGL?
2. A change in phase for NGL recovery, thus its separation from the gas
stream always involves the control of one or more of the following
parameters:
(a) operating pressure
(b) acid gas content
(c) operating temperature
(d) water vapor content
(e) system composition of hydrocarbons.

3. For separation using energy separating agents (ESA),______is
maintained by direct control.______, on the other hand, is reduced by
refrigeration using one of the three techniques: ______, ______, or
______.
4. For separation using mass separating agent (MSA), a control in the
______ of the hydrocarbons to be recovered as NGL is obtained by
using ______ or ______.
5. In the absorption process for the recovery of NGL, the up-flow gas
stream is brought in direct contact counter-current with the solvent
which is ______. The rich oil is made up of ______ plus ______.

Copyright 2003 by Marcel Dekker, Inc. All Rights Reserved.