Experimental Study on the Throttling Effect of SC-CO2 Containing Ethanol System Flowing Through the Coaxial Annular Nozzle and the Prediction Based on Artificial Neural Network

Zhang, Zhuo; Zhang, Guimin; Hao, Guizhou; Sun, Fayu; Wang, Weiqiang; Cao, Rongkai; Li, Qingling; Hu, Dedong

doi:10.1007/s10765-021-02896-9

Cited by 2 publications

(1 citation statement)

References 40 publications

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“…Previous studies have indicated that subtle temperature changes could cause abnormalities in the thermodynamic parameters of CO 2 such as compressibility, specific heat capacity, thermal expansion, and sound velocity in the near-critical region, − thereby leading to an abnormal change in pressure. As for the failure to preset pressure toward CO 2 diffusion and dissolution in the heavy oil at 308.15 K, it may be due to the throttling and expansion effect of CO 2 . These two effects induced by opening the isolated valve could reduce the temperature of the fluid–oil system.…”

Section: Resultsmentioning

confidence: 99%

Diffusion and Dissolution Behaviors of CO₂, CH₄, and N₂ in Heavy Oil under High-Temperature and -Pressure Conditions: Insights into Heavy Oil Production via Multithermal Fluid Stimulation

Su,

Wang,

et al. 2023

Energy Fuels

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To comprehend heavy oil production well via the multithermal fluid stimulation technology, the diffusion and dissolution processes of CO2, CH4, and N2 in heavy oil were conducted under a temperature range of 308.15–423.15 K and bulk pressures up to 20 MPa. Accordingly, the diffusion coefficients and solubilities of CO2, CH4, and N2 were measured. Results indicated that the diffusion coefficients of CO2, CH4, and N2 in heavy oil increase with rising temperature and decrease with rising pressure. The diffusion capability of these fluids in heavy oil conforms to the order CH4 > CO2 > N2. Moreover, the solubility of CO2, CH4, and N2 in heavy oil is negatively related to temperature and positively related to pressure. The solubility of various fluids in heavy oil decreases in the sequence of CO2 > CH4 > N2. The diffusion and dissolution of CO2, CH4, and N2 could induce volume expansion, colloidal structure damage, intermolecular force alteration, gap filling, and light component extraction toward heavy oil, thereby promoting its quality and recovery. Overall, heavy oil production via the multithermal fluid stimulation technology is recommended to be implemented under high-temperature and -pressure conditions.

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Section: Resultsmentioning

confidence: 99%

Diffusion and Dissolution Behaviors of CO₂, CH₄, and N₂ in Heavy Oil under High-Temperature and -Pressure Conditions: Insights into Heavy Oil Production via Multithermal Fluid Stimulation

Su,

Wang,

et al. 2023

Energy Fuels

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show abstract

Particle preparation of pharmaceutical compounds using supercritical antisolvent process: current status and future perspectives

Kumar

Thakur

Kali

et al. 2022

Drug Deliv. and Transl. Res.

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Experimental Study on the Throttling Effect of SC-CO2 Containing Ethanol System Flowing Through the Coaxial Annular Nozzle and the Prediction Based on Artificial Neural Network

Cited by 2 publications

References 40 publications

Diffusion and Dissolution Behaviors of CO₂, CH₄, and N₂ in Heavy Oil under High-Temperature and -Pressure Conditions: Insights into Heavy Oil Production via Multithermal Fluid Stimulation

Diffusion and Dissolution Behaviors of CO₂, CH₄, and N₂ in Heavy Oil under High-Temperature and -Pressure Conditions: Insights into Heavy Oil Production via Multithermal Fluid Stimulation

Particle preparation of pharmaceutical compounds using supercritical antisolvent process: current status and future perspectives

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Experimental Study on the Throttling Effect of SC-CO2 Containing Ethanol System Flowing Through the Coaxial Annular Nozzle and the Prediction Based on Artificial Neural Network

Cited by 2 publications

References 40 publications

Diffusion and Dissolution Behaviors of CO2, CH4, and N2 in Heavy Oil under High-Temperature and -Pressure Conditions: Insights into Heavy Oil Production via Multithermal Fluid Stimulation

Diffusion and Dissolution Behaviors of CO2, CH4, and N2 in Heavy Oil under High-Temperature and -Pressure Conditions: Insights into Heavy Oil Production via Multithermal Fluid Stimulation

Particle preparation of pharmaceutical compounds using supercritical antisolvent process: current status and future perspectives

Contact Info

Product

Resources

About

Diffusion and Dissolution Behaviors of CO₂, CH₄, and N₂ in Heavy Oil under High-Temperature and -Pressure Conditions: Insights into Heavy Oil Production via Multithermal Fluid Stimulation

Diffusion and Dissolution Behaviors of CO₂, CH₄, and N₂ in Heavy Oil under High-Temperature and -Pressure Conditions: Insights into Heavy Oil Production via Multithermal Fluid Stimulation