http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 주제어 : CO 2 hydrate slurry (검색결과 4 건)
- 무료
- 기관 내 무료
- 유료
-
INVESTIGATION OF THERMO-PHYSICAL AND FLOW PROPERTIES OF CO_2 HYDRATE SLURRY
J. HU,O. SARI,P. HOMSY 대한설비공학회 2011 International Journal Of Air-Conditioning and Refr Vol.19 No.3
A pilot CO_2 hydrate slurry production system was built and tested. The density of CO_2 hydrate slurry was experimentally investigated and the relation between the density and the solid fraction has been established. The apparent viscosity of water, CO_2 solution and CO_2 hydrate slurry was investigated with a XL7-100 online resonant viscometer. We find that when the solid mass fraction in slurry increases, the density and apparent viscosity of CO_2 slurry also increase. CO_2 hydrate solid particles contribute only slightly to the viscosity increase when the solid mass fraction increased from 1.59% to 28% from our experimental results. Higher solid mass fraction can be achieved when more CO_2 gas is injected into the loop under suitable hydrate formation conditions. The pure hydrate's dissociation enthalpy was evaluated by Micro Differential Scanning Calorimetry system. The enthalpy of CO_2 hydrate slurry mainly depends on solid mass fraction. Real-time coupled multielectrode array sensor probes were applied to measure the maximal localized corrosion rate of three different materials subjected to CO_2 hydrate slurry and saturated CO_2 solution in the temperature range of 274.15–291.15 K and pressure range of 2.5–3.0 MPa. For a long-term usage in a mixture of CO_2 saturated aqueous solution and hydrate slurry environment, carbon steel materials are to be unacceptable from the corrosion resistance point of view. In contrast, stainless steel type 304L and copper 110 have presented very low corrosion rates.
-
Investigations on CO2 hydrate slurry for transportation in carbon capture and storage
PRAHBENEDICT,윤린 대한기계학회 2019 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.33 No.10
The flow characteristics of CO 2 hydrate in the presence of Tween 80 in a scaled-up test facility were investigated in order to further elucidate the potential of CO 2 hydrate slurry transportation in carbon capture and storage technology. Two formation processes were used to generate sufficient hydrate slurry for flow in a circulation loop of a 108 mm inner diameter pipe. The effects of Tween 80 concentrations on the four hydrate slurry parameters of pressure, temperature, density, and flow rate were studied and discussed. The results of the CO 2 hydrate slurry transportation experiments indicated that 0.7 wt.% of Tween 80 showed the optimal results for slurry stability, slurry temperature, and slurry density, but had no significant effect on slurry temperature during flowing in the loop. In all experiments, hydrate circulation was performed for an average duration of 80 min under stable conditions. The results suggest the possibility of transporting hydrate slurry over long distances under stable conditions with the addition of chemical additives.
-
Energy consumption analysis of hydrate-based technology in the carbon capture storage process
Benedict Prah,Michael Anokye,윤린 대한기계학회 2023 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.37 No.12
Efficient integration of the carbon capture and storage (CCS) process in power generation plants can help reduce global CO 2 emissions. Hydrate technology has emerged as one of the most promising technologies for the separation and sequestration of CO 2 . This paper compares the process energy consumption of different CO 2 capture techniques, gas transportation, and sequestration methods integrated into a pre-combustion power plant. Process modeling of a conceptualized hydrate technology-based CCS process is simulated using a coupled TRNSYS simulation software and engineering equation solver. The performance in efficiency, energy consumption, and potential energy penalty is evaluated and analyzed for three study cases. Furthermore, the energy requirement for transporting and sequestrating CO 2 in hydrate as hydrate slurry is evaluated and compared to supercritical transportation and sequestration. The results obtained show that the energy consumption of hydrate-based gas separation amounts to 70 % of the total energy consumption for hydrate-based CO 2 capture, transportation, and sequestration.
-
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
