!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!" !!!!!" CO 2 H 2 S CO ~ , MDEA MDEA

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1 34 6 7!!!!!"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!" CO 2 ; ; ; TE868 TE962 B (2008) !!!!!" 0 CO 2 / / ( H 2 S CO 2 ) CO ~ ( 1 ) MDEA CO 2 MDEA CO 2 [1] MDEA ( MEA DEA ) CO 2 MDEA MDEA H 2 S 1 [2] / MDEA

2 ( 6 mg/m 3 ); (3) MEA DEA CO 2 ( CO 2 /H 2 S ) CO 2 CO 2 ; MDEA MDEA CO 2 CO 2 MDEA CO 2 CO 2 MDEA CO 2 (1) CO 2 + H 2 O + R 3 N = R 3 NH HCO 3 (1) MDEA CO 2 2 [3-4] 1 DEA CO 2 MDEA (2) (3) CO 2 + 2RNH 2 = RNH 3+ + RNHCOO - (2) CO 2 + H 2 O = H + + HCO 3ˉ (3) OH - (1) MEA DEA (2) MEA DEA (3) H 2 S CO 2 (4) CO 2 MEA DEA MDEA/DEA CO 2 MDEA CO 2 MDEA (1) MDEA CO 2 QH-1 CO 2 2 ~ 5 s (2) MDEA CO 2 CO 2 ; 60 CO 2 CO 2 (4) ( ) ;

3 CO 2 ; ; ; ; ; 2 ; ; ( ) 3 (1) (2) 4 (3) (4) (5) ( ) (6) [5] FP Cs HETP 2 3 FP = L ρ L ρ C G S = u G ρ G L ρ L - ρ G L /(kg/h); G /(kg/h); 10 m ρ L /(kg/m 3 ); ρ G /(kg/m 3 ); MDEA DEA u G /(m/s) FP 0.02 ~ 0.1 ; 50%; FP % ~ 40% FP 0.1 ~ ~ 50 ; ; FP m 3 / 50% ; 20% FP 0.3 ~ 0.5 2

4 CS/(m/s) HETP/mm MPa MPa 1.14 MPa MPa MPa 1.14 MPa #2 #2.5Nuttct Intalox 2T FRI/SRP Intalox 2T Norton FP mm H 2 S FP 20 3 CO 2 FP ; CO 2 ; FP = MPaA CO FP MPaA 2.76 MPaA 3 [6] 3 [1] Nielsen R B. Treat LPGs with amines[j]. Hydr. Proc (9) [2]. [M] [3]. [M] [4] SY/T [S]. ; [5]. [M] [6] Arthur L Kohl Richard B.Nielsen. Gas Purification [M]. HOUSTON TEXASGulf Publishing Company1997. (1978-) ; mm mm mm (Ballast Rings) 38.1 mm mm mm (Cascade Mini Rings) # # # (Gempak) 4A A A A

5 PETROLEUM ENGINEERING CONSTRUCTION Bi - Monthly Established in 1975 ISSN CODEN SGJIE9 4348BM Tel / Fax Vol.34 No.6 Serial No.206 December 2008 Sponsor China National Petroleum Corporation (CNPC) Publisher / Editor Research Inst. of Petroleum Eng. Technology Address 40 Jintang HighwayTangguTianjin P.R.China Distributor China International Book Trading Corporation P.O.Box 399Beijing P.R. China CONTENTS & ABSTRACTS RESEARCH & DISCUSSION (1) Design of Temperature Stress Model Experiment of Concrete Oil Storage Tank ZHANG Yu-peng (Department of Civil Engineering Beijing University of Aeronautics and Astronautics Beijing China)SUN Shu-meiWAN Fu-leiet al. Abstract The main tensile stress that a concrete oil tank bears is the temperature stress. Temperature stress model experiment is an important method to study the stress rules of the oil storage tank and it should be designed according to the similarity theory. Based on the similarity theory the similarity conditions of the concrete oil storage tank temperature stress model experiment are derived and the similarity constants are determined. The loading process of thermal load in the oil storage tank model experiment is proposed and it is verified by the numerical simulation. Key words concrete oil storage tank; model experiment; similarity theory; temperature stress (4) Applied Research on Electrolytic Brine Sterilization Technique in Oilfield Sewage Treatment HE Xin(Dagang Oilfield Natural Gas Company Tianjin China)JIN HuaHU Zhi-yuanet al. Abstract Sodium hypochlorite as a kind of bactericide is widely used in many industries but it is applied to oilfield sewage treatment for the first industrial test. The technical principle and properties of sterilization treatment for oilfield sewage using sodium hypochlorite produced from field electrolytic brine are described and its application effect in Dagang Oilfield Zhuangyi Sewage Treatment Station as well. The proper concentration of sodium hypochlorite for sterilization and its corrosion to water injection device have been investigated. The test results show that sodium hypochlorite has a continuing sterilization effect and the corrosion rate by the sterilized sewage is slightly increased but still under control for safe usage. Key words electrolytic brine; sodium hypochlorite; oilfield sewage; sterilization treatment ENGINEERING DESIGN (7) Type Selection of Absorption Tower Used for Mixed Amine Deep Decarburization of Natural Gas CHEN Wen-feng (COOEC Design Company Tianjin China)ZENG Shu-bingGUO Zhou Abstract On the basis of analysis on the process characteristics of mixed amine deep decarburization of natural gas and taking Zhuhai LNG project as an example this paper discusses the main types of absorption towers the key equipment of mixed amine deep decarburization of natural gas process. According to the requirement of CO 2 purifying degree advantages of bulk packing and structured packing are respectively taken and a kind of mixed packing like sandwich is developed. It creates a new way for deep decarburization of natural gas. Key words natural gas; mixing amine method; deep decarburization; absorption tower (11) Analysis on Gas Supercharging Process by Compressor in Low -pressure Gas Gathering and Transportation 3