Open Access
ARTICLE
SUPERSONIC CONDENSATION CHARACTERISTICS OF CO2 IN NATURAL GAS UNDER DIFFERENT TEMPERATURE CONDITIONS
Huan Zhenga,*, Yuliang Mab
, Huaping Meic
, Xiaohong Xua
, Xiguang Chend
, Xunchen Caoe
a School of Geosciences, Yangtze University, Wuhan 430100, China
b Research Institute of Exploration and Development PetroChina Liaohe Oilfield Company, Panjin 124000, China
c The Fifth Gas Production Plant, Changqing Oilfield Company, PetroChina, Xi’an 710018, China
d PetroChina Hangzhou Institute of Petroleum Geology, Hangzhou 310023, China
e Petroleum Exploration and Development Institute, PetroChina Xinjiang Oilfield Company, Karamay 834000, China
* Corresponding Author: Email:
Frontiers in Heat and Mass Transfer 2018, 11, 1-6. https://doi.org/10.5098/hmt.11.34
Abstract
The supersonic separator has proved to be an effective method to condense and separate CO
2 from natural gas, and the inlet temperature plays a vital role
on condensation characteristics of CO
2 in the supersonic separator due to the instability temperature of wellhead natural gas. In this paper, the physical and
mathematical models for the supersonic condensation process of CO
2 in the natural gas were established on the basis of CO
2 droplet surface tension,
nucleation and growth model. The flow and condensation parameters were investigated under different temperature conditions. The results show that when
the inlet gas pressure is 8.0 MPa, the inlet gas temperature is 280 K and the CO
2 content is 0.15, the condensation position is x=240.25 mm, the maximum
nucleation rate is 1.14×10
21 m
-3·s
-1, the maximum droplet radius is 2.146×10
-7 m, the maximum droplet number is 8.20×10
14 kg
-1, and the maximum
humidity is 0.0446. The decrease of inlet temperature makes the droplet reach a greater growth rate and a larger radius of droplet at nucleation. With
the decrease of the inlet temperature, the condensation position moves forward, the maximum nucleation rate and the droplet number, the droplet radius and
the humidity of CO
2 increase.
Keywords
Cite This Article
APA Style
Zheng, H., Ma
, Y., Mei
, H., Xu
, X., Chen
, X. et al. (2018). SUPERSONIC CONDENSATION CHARACTERISTICS OF CO2 IN NATURAL GAS UNDER DIFFERENT TEMPERATURE CONDITIONS. Frontiers in Heat and Mass Transfer, 11(1), 1-6. https://doi.org/10.5098/hmt.11.34
Vancouver Style
Zheng H, Ma
Y, Mei
H, Xu
X, Chen
X, Cao X. SUPERSONIC CONDENSATION CHARACTERISTICS OF CO2 IN NATURAL GAS UNDER DIFFERENT TEMPERATURE CONDITIONS. Front Heat Mass Transf. 2018;11(1):1-6 https://doi.org/10.5098/hmt.11.34
IEEE Style
H. Zheng, Y. Ma
, H. Mei
, X. Xu
, X. Chen
, and X. Cao "SUPERSONIC CONDENSATION CHARACTERISTICS OF CO2 IN NATURAL GAS UNDER DIFFERENT TEMPERATURE CONDITIONS," Front. Heat Mass Transf., vol. 11, no. 1, pp. 1-6. 2018. https://doi.org/10.5098/hmt.11.34