skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Maximizing NGL recovery by refrigeration optimization

Abstract

PDVSA--Petroleo y Gas, S.A. has within its facilities in Lake Maracaibo two plants that extract liquids from natural gas (NGL), They use a combined mechanic refrigeration absorption with natural gasoline. Each of these plants processes 420 MMsccfd with a pressure of 535 psig and 95 F that comes from the compression plants PCTJ-2 and PCTJ-3 respectively. About 40 MMscfd of additional rich gas comes from the high pressure system. Under the present conditions these plants produce in the order of 16,800 and 23,800 b/d of NGL respectively, with a propane recovery percentage of approximately 75%, limited by the capacity of the refrigeration system. To optimize the operation and the design of the refrigeration system and to maximize the NGL recovery, a conceptual study was developed in which the following aspects about the process were evaluated: capacity of the refrigeration system, refrigeration requirements, identification of limitations and evaluation of the system improvements. Based on the results obtained it was concluded that by relocating some condensers, refurbishing the main refrigeration system turbines and using HIGH FLUX piping in the auxiliary refrigeration system of the evaporators, there will be an increase of 85% on the propane recovery, with an additional production of 25,000more » b/d of NGL and 15 MMscfd of ethane rich gas.« less

Authors:
Publication Date:
Research Org.:
PDVSA Exploration and Production, Maracaibo (VE)
OSTI Identifier:
20000906
Report Number(s):
CONF-990331-
Resource Type:
Conference
Resource Relation:
Conference: Gas Processors Association Seventy-Eighth Annual Convention, Nashville, TN (US), 03/01/1999--03/03/1999; Other Information: PBD: 1999; Related Information: In: Gas Processors Association seventy-eighth annual convention, proceedings, 393 pages.
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; VENEZUELA; NATURAL GAS PROCESSING PLANTS; NATURAL GAS LIQUIDS; MATERIALS RECOVERY; ABSORPTION REFRIGERATION CYCLE; DESIGN; PERFORMANCE; PROPANE; ETHANE

Citation Formats

Baldonedo H., A.H. Maximizing NGL recovery by refrigeration optimization. United States: N. p., 1999. Web.
Baldonedo H., A.H. Maximizing NGL recovery by refrigeration optimization. United States.
Baldonedo H., A.H. Thu . "Maximizing NGL recovery by refrigeration optimization". United States.
@article{osti_20000906,
title = {Maximizing NGL recovery by refrigeration optimization},
author = {Baldonedo H., A.H.},
abstractNote = {PDVSA--Petroleo y Gas, S.A. has within its facilities in Lake Maracaibo two plants that extract liquids from natural gas (NGL), They use a combined mechanic refrigeration absorption with natural gasoline. Each of these plants processes 420 MMsccfd with a pressure of 535 psig and 95 F that comes from the compression plants PCTJ-2 and PCTJ-3 respectively. About 40 MMscfd of additional rich gas comes from the high pressure system. Under the present conditions these plants produce in the order of 16,800 and 23,800 b/d of NGL respectively, with a propane recovery percentage of approximately 75%, limited by the capacity of the refrigeration system. To optimize the operation and the design of the refrigeration system and to maximize the NGL recovery, a conceptual study was developed in which the following aspects about the process were evaluated: capacity of the refrigeration system, refrigeration requirements, identification of limitations and evaluation of the system improvements. Based on the results obtained it was concluded that by relocating some condensers, refurbishing the main refrigeration system turbines and using HIGH FLUX piping in the auxiliary refrigeration system of the evaporators, there will be an increase of 85% on the propane recovery, with an additional production of 25,000 b/d of NGL and 15 MMscfd of ethane rich gas.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jul 01 00:00:00 EDT 1999},
month = {Thu Jul 01 00:00:00 EDT 1999}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: