天然气化工
天然氣化工
천연기화공
NATURAL GAS CHEMICAL INDUSTRY
2014年
5期
83-87,93
,共6页
周诗岽%何双双%余益松%王树立%王恒%许娇娇%李辉
週詩崠%何雙雙%餘益鬆%王樹立%王恆%許嬌嬌%李輝
주시동%하쌍쌍%여익송%왕수립%왕항%허교교%리휘
纳米流体%酸气%吸收%传质%影响因素%机理
納米流體%痠氣%吸收%傳質%影響因素%機理
납미류체%산기%흡수%전질%영향인소%궤리
nanofluid%acid gas%absorption%mass transfer%influencing factor%mechanism
纳米流体的高传热传质特性对于以气液传质为基础的天然气净化过程具有重要的意义。通过查阅大量国内外文献,对当前纳米流体强化酸气的吸收过程进行分析和总结,结果表明:纳米流体强化传质的效果明显,酸气的吸收率有了大幅度的提高;掠过效应,边界层混合机理,渗透机理是促进其传质的主要机制;此外,纳米颗粒的种类、细度、浓度、分散剂等因素在很大程度上影响着体系的传质效率。然而,当前相关研究仍处于起步阶段,各方面还不成熟,其基础理论的建立将是今后很长一段时间的研究重点。
納米流體的高傳熱傳質特性對于以氣液傳質為基礎的天然氣淨化過程具有重要的意義。通過查閱大量國內外文獻,對噹前納米流體彊化痠氣的吸收過程進行分析和總結,結果錶明:納米流體彊化傳質的效果明顯,痠氣的吸收率有瞭大幅度的提高;掠過效應,邊界層混閤機理,滲透機理是促進其傳質的主要機製;此外,納米顆粒的種類、細度、濃度、分散劑等因素在很大程度上影響著體繫的傳質效率。然而,噹前相關研究仍處于起步階段,各方麵還不成熟,其基礎理論的建立將是今後很長一段時間的研究重點。
납미류체적고전열전질특성대우이기액전질위기출적천연기정화과정구유중요적의의。통과사열대량국내외문헌,대당전납미류체강화산기적흡수과정진행분석화총결,결과표명:납미류체강화전질적효과명현,산기적흡수솔유료대폭도적제고;략과효응,변계층혼합궤리,삼투궤리시촉진기전질적주요궤제;차외,납미과립적충류、세도、농도、분산제등인소재흔대정도상영향착체계적전질효솔。연이,당전상관연구잉처우기보계단,각방면환불성숙,기기출이론적건립장시금후흔장일단시간적연구중점。
Good heat and mass transfer characteristics of nanofluids were of great importance to the natural gas purification process based on gas-liquid mass transfer. Progress in research on enhancement of acid gas absorption by nanofluids in membrane absorption process was reviewed. Nanofluids could greatly enhance mass transfer and improved the rate of acid gas absorption significantly. The skimming effect, boundary layer mixing mechanism and penetration mechanism played a major part in improving the mass transfer. In addition, the types, fineness, concentration and dispersant of nanoparticles affected the mass transfer efficiency of the system to a large extent. However, the current research was still in its infancy, not mature in all aspects, and the establishment of its basic theory would be the focus of future research for a long period of time.