Mass flow measurement of gas-liquid two-phase CO 2 in CCS transportation pipelines using Coriolis flowmeters

Lijuan, Wang; Yan, Yong; Wang, Xue; Wang, Tao; Duan, Quansheng; Zhang, Wenbiao

doi:10.1016/j.ijggc.2017.11.021

Cited by 30 publications

(21 citation statements)

References 13 publications

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“…The maximum absolute error and relative error are -87.89 kg/h and 5.44% during the step increase, while the maximum absolute error and relative error are -122.43 kg/h and 7.67% during the step decrease, which cannot meet the requirement of 1.5% measurement uncertainty specified in the European Union Emissions Trading Scheme under all expected CCS conditions (Hunter and Leslie, 2009). In order to accurately measure the total mass of CO2 flow, the errors during the transition should be compensated using the soft computing method (Wang et al, 2018;Yan et al, 2018). In addition, since the gaseous CO2 has a higher temperature and a lower density in comparison with liquid phase CO2, the density and temperature of two-phase CO2 flow change correspondingly during the step increase or decrease of the gas mass flow rate ( 6.…”

Section: Horizontal Test Section 65dmentioning

confidence: 99%

“…With increased acceptance in industry, CMF has been widely applied in single-phase and multiphase flow measurement (Wang and Baker, 2014). Wang et al (2018) reported that the CMF combined with soft computing models can measure the mass flow rate of gas-liquid two-phase CO2 with a relative error of ±2% over the range from 250 kg/h to 3200 kg/h. In addition, for flow measurement in transient conditions, the dynamic response of the CMF is important.…”

Section: Introductionmentioning

confidence: 99%

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Experimental investigations into the transient behaviours of CO2 in a horizontal pipeline during flexible CCS operations

Zhang

Shao

Yan

et al. 2018

International Journal of Greenhouse Gas Control

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Section: Horizontal Test Section 65dmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental investigations into the transient behaviours of CO2 in a horizontal pipeline during flexible CCS operations

Zhang

Shao

Yan

et al. 2018

International Journal of Greenhouse Gas Control

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“…Henry et al [11] combined Coriolis flowmeter with a water cut meter to realize the measurement of three-phase flow (water content from 0 to 100%, gas volume fraction (GVF) from 0 to 50%). Wang et al [12] proposed a new method of CO 2 flow measurement under carbon capture and storage (CCS) condition based on the Coriolis flowmeter and LSSVM model, using a classifier to identify mixed fluid flow patterns, and using a single Least Square Support Vector Machine (LSSVM) model to measure and predict CO 2 mass flow and volume fraction.…”

Section: Introductionmentioning

confidence: 99%

Each-Phase Metering with Gas-Liquid Stratified Flow Based on the Multi-Frequency Coriolis Principle

et al. 2020

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Gas-liquid two-phase flows generally have the characteristics of complex and variable flow patterns and flow rate uncertainty of each phase. The entrainment of gas increases errors of the existing non-separated multiphase metering. A novel metering method based on the multi-frequency Coriolis principle is proposed to solve the above problems. Compared to the conventional Coriolis mass flowmeter, the third-order mode of the measuring tube is used to improve the accuracy of the measurement. The influences of bubble effect and resonance effect on vibration responses in different vibrational modes were studied to determine the deviations of the apparent values of total density and mass flowrate by simulation. Simulation results with a single-frequency Coriolis flowmeter show that the maximum relative deviations of total density and total mass flowrate are −37.3% and −9.3%, respectively. Driven by different frequencies, the same two phase fluid in the measuring tube can have different responses of the primary mode and the higher vibrational modes. The vibrational responses characteristics corresponding to the first-order and third-order modes of measuring tube were selected and analyzed. Combined with advantages of high precision and multi-parameter measurement of traditional single-frequency Coriolis flowmeters, a multi-frequency correction model suitable for stratified flow was proposed. The results show that the corrected total density and mass flow deviations of gas-containing fluid are within ±4% and ±3%, respectively, which are significantly reduced. Corrected flowrate deviations of the gas-phase and liquid-phase are ±9.1% and ±7.2%, correspondingly, which also meet the metering requirements of the wellhead.

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“…In the literatures, the Orifice flowmeter has been used for the measurement of slugging gas-liquid flow, but the error can reach up to 80% [6]. The Coriolis mass flowmeter can also be applied to measure gas-liquid CO 2 flow [6], [7]. However, the techniques based on these flowmeters cannot provide distribution information of the two phases.…”

Section: Introductionmentioning

confidence: 99%

Real-Time Imaging and Holdup Measurement of Carbon Dioxide Under CCS Conditions Using Electrical Capacitance Tomography

et al. 2018

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This paper presented a method for real-time cross-sectional imaging and holdup measurement of gas-liquid two-phase carbon dioxide (CO 2 ) flow using electrical capacitance tomography (ECT). A high-pressure ECT sensor with 12 electrodes was constructed and a dedicated digital ECT system with a data acquisition rate of 757 frames per second was developed for capacitance measurement. Three widely-used image reconstruction algorithms were compared for tomographic imaging and phase holdup measurement. Experiments were carried out on a DN25 laboratorial scale CO 2 two-phase flow rig at a pressure of 6 MPa for the gaseous mass flowrates from 0 to 430 kg/h and liquid mass flowrates at 515, 1100 and 1900 kg/h. The experimental results show that the cross-sectional distribution of two-phase CO 2 flow can be monitored using the ECT system, which matches well with the images captured by a high-speed imaging system. Compared with the reference gas holdup obtained by the flowmeters in the single phase gaseous and liquid loops, the absolute accuracy of the gas holdup measurement can reach 6%, indicating that the developed system is promising for real-time monitoring of carbon dioxide in CCS transportation pipelines. Zhang Cao (M'10) received the B.Sc. degree (with distinction) in automation and the M.Eng. and Ph.D. degrees (with distinctions) in measurement technology and automatic devices from Tianjin University, . His interests include process tomography, multiphase flow measurement, and inverse problems.Lijun Xu (M'04-SM'04) received the B.Sc., M.Eng., and Ph.D. degrees in electrical engineering and He has authored or coauthored more than 260 publications. His current research interests include digital imaging and dynamic process monitoring. His current research interests include tomographic imaging, scanning imaging and dynamic process monitoring.

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Mass flow measurement of gas-liquid two-phase CO 2 in CCS transportation pipelines using Coriolis flowmeters

Cited by 30 publications

References 13 publications

Experimental investigations into the transient behaviours of CO2 in a horizontal pipeline during flexible CCS operations

Experimental investigations into the transient behaviours of CO2 in a horizontal pipeline during flexible CCS operations

Each-Phase Metering with Gas-Liquid Stratified Flow Based on the Multi-Frequency Coriolis Principle

Real-Time Imaging and Holdup Measurement of Carbon Dioxide Under CCS Conditions Using Electrical Capacitance Tomography

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