Dissertation > Excellent graduate degree dissertation topics show

Research on Physical Properties and Data Processing in the Process of Removing Acid of LNG

Author: ZhengHongChuan
Tutor: JiaLinXiang
School: Harbin Institute of Technology
Course: Refrigeration and Cryogenic Engineering
Keywords: Natural gas Property Phase equilibrium GA Nerve network
CLC: TE644
Type: Master's thesis
Year: 2008
Downloads: 111
Quote: 2
Read: Download Dissertation


The properties of natural gas are absolutely necessary in the air conditioning process and the veracity of natural gas properties is the key of a good conditioning process design. But the experiment data is limited, so it is necessary to calculate them. In this paper, we discuss how to calculate the density、enthalpy、entropy、viscosity of natural gas and the viscosity、surface tension of chemical absorbent.In this paper we introduce Lee-Kesler equation and RKS equation to calculate the density、enthalpy、entropy of natural gas, and compare the result with experiment data. After this we can know their precisions, so we can decide which equation to choose in different conditions. In order to calculate the viscosity of natural gas, we introduce the Chung method based on theory and the Lucas method based on the law of corresponding states, and compare the result with experiment data, so we can determine their precisions and the range they are applicable.Sometimes we have to calculate phase equilibrium in the conditioning process. So in this paper, we derive the expression of fugacity of Lee-Kesler equation and RKS equation, on top of this we calculate the phase equilibrium by the two methods, and compare the result with the experiment data.The chemical absorbent is strong polar fluids, so we decide to introduce Teja-Rice method to calculate its viscosity. For surface tension of liquid, there is no method that performs very well, we decide to use Simply Add method briefly. The methods we mention in front have a lot of parameters not assured, we have to calculate them by data regressing. In this paper, we write a program of GA(genetic algorithm) based on best preserving policy, and then conform its validity. On top of this, we regress the one order interaction coefficient of Teja-Rice method, then we use it to calculate the viscosity of MEA solution and compare it with the result calculated by Aspen Plus. After this we can know the precision of Teja-Rice and the range that is applicable.In the chemical design, there may be a lot of experiment data, but because of the faultiness of existing theory, we can’t deal with the experiment data effectively. In this paper, we decide to deal with the experiment by BP network, and plan to use it to calculate the phase equilibrium of CO2-MDEA-PZ-H2O system. This introduces a new method to deal with the experiment data.

Related Dissertations

  1. Space right to the basic theoretical research,D923.2
  2. Optimizition of Compositions and Processing Parameters and Wear Properties of Cemented Carbides YG11R Modified by Nanosized Rare Earth,TG135.5
  3. Study on Spherical Harmonics Discrete Ordinate Method for Radiative Transfer,TK124
  4. The Relation between Fuzzy Logic Guidance Law and Homing Quality,TJ765
  5. Chinese Sports Athletes Human Capital Development and Income Distribution Research,G812.0
  6. Study on the Synthesis and Properties of Copolyimides Derived from ODPA/Isomeric ODA,TQ323.7
  7. The Research on the Comprehensive Modification Technology of Rice Protein Enzymatichydrolysis and Graft Copolymerization,TS201.2
  8. Effects of Organic, SEQ, Special and Conventional Farming Systems on the Yield and Quality of Different Vegetables and Soil Properties,S63
  9. The Degradation of PET to Synthesize Phosphate Flame Retardants and the Study of Their Flame-retardant Performance,TQ314.248
  10. The Research of Property Management Patterns for Rural Household Biogas in Jiangsu Province,S216.4
  11. Differences of Resistant Starch Content and Its Its Correlation with Flour Quality in Different Wheat Cultivars,S512.1
  12. Research on the Development Strategy of Chaoyang Natural Gas Company,F426.22
  13. Study on the Properties of Polyphosphatases from Beef Semitendinosus and the Enzymic Reaction Systems,TS251.1
  14. Of school-run enterprise property right system of innovative research and standardized management,F271
  15. On Intellectual Property Protection of Intangible Cultural Heritage,D923.4
  16. Expression, Purification and Characterization of Trucated Type Recombinant Buckwheat Trypsin Inhibitor,R284.1
  17. The Prokaryotic Expression of Melittin Gene and Its Targeting Transcription in Hela Cells,R346
  18. Biological Properties of EDC Cross-linked Acellular Tendon of Banna Mini-pig Inbred-lines Abstract,R687.2
  19. Attribute structure of cognitive diagnosis completeness and accuracy,B842.1
  20. Qinshui Basin Carboniferous - Permian coal-bearing strata of free gas reservoir type more quantitative analysis of dependencies,P618.13

CLC: > Industrial Technology > Oil and gas industry > Oil, natural gas processing industry > Natural gas processing > Pretreatment
© 2012 www.DissertationTopic.Net  Mobile