A Methodology for Calculating the Natural Gas Compressibility Factor for a Distribution Network

被引：16

作者：

Cezar de Almeida, J. ^{[1
]}

Velasquez, J. A. ^{[2
]}

Barbieri, R. ^{[3
]}

机构：

[1] Parana Nat Gas Co COMPAGAS, Curitiba, Parana, Brazil

[2] Univ Tecnol Fed Parana, Dept Mech Engn, Curitiba, Parana, Brazil

[3] Pontif Catholic Univ Parana, Dept Mech Engn, Curitiba, Parana, Brazil

来源：

PETROLEUM SCIENCE AND TECHNOLOGY | 2014年 / 32卷 / 21期

关键词：

COMPAGAS natural gas Brazilian network; compressibility factor of natural gas; equation of state for natural gas; natural gas thermodynamic properties; STATE;

D O I：

10.1080/10916466.2012.755194

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This work describes a methodology that allows an accurate correlation for natural gas compressibility factor to be obtained. This methodology was applied to the Parana State natural gas distribution network in Southern Brazil, whose operating conditions were characterized by more than 14,000 pairs of pressure-temperature readings, measured along eight months. Compressibility factors calculated following Peng-Robinson, Patel-Teja-Valderrama, Shell Oil Company, Soave-Redlich-Kwong, and Van der Waals were compared to those given by the American Gas Association equation, which is used by most natural gas companies. Finally, an alternative correlation was proposed, which is highly accurate within the network operating range.

引用

页码：2616 / 2624

页数：9

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