Page 135 - 摩擦学学报2025年第8期

第 8 期 左湘豫, 等: CO 2 对醇胺溶液摩擦学性能的影响与润滑机制研究 1233

OH O C OH OH
CO 2 + 2H 2 N O N + + H 3 N
H
MEA
O C
NH
NH 2 NH 3
+
CO 2 + 2 OH OH + OH
AMP O −
O C
CO 2 + 2 H 2 N OH HN OH + H 3 N OH
+
3-AP

CO 2

Alcohol amine solution NaOH solution
Fig. 1 Reactions mechanism of three kinds of alcohol amine absorbing CO 2 and reaction device
图 1 3种醇胺吸收CO 2 的反应机理与试验装置示意图

14
7 (a) (b) MEA (c) MEA, 0 min
13 AMP 0.008
6 3-AP MEA, 20 min
5 12 0.006 MEA, 40 min
MEA, 60 min
Quality/g 4 3 pH 11 Viscosity/(Pa·s )
10
2 MEA 9 0.004
AMP
1 3-AP 8 （
0 0.002
0 10 20 30 40 50 60 0 20 40 60 0 20 40 60 80 100
Time/min Time/min Shear rate/(1/s)

0.020 0.010 0.006
(d) AMP, 0 min (e) 3-AP, 0 min (f ) MEA
0.016 AMP, 20 min 0.008 3-AP, 20 min 0.005 AMP
3-AP, 40 min
AMP, 40 min
3-AP
Viscosity/(Pa·s ) 0.012 Viscosity/(Pa·s ) 0.006 Viscosity/(Pa·s ) 0.004
AMP, 60 min
3-AP, 60 min
0.008
0.004 0.004 0.003
0.002
0.000
0 20 40 60 80 100 0 20 40 60 80 100 0 10 20 30 40 50 60
Shear rate/(1/s) Shear rate/(1/s) Time/min
Fig. 2 (a) Changes in the mass of MEA, AMP, and 3-AP solutions under different CO 2 absorption times; (b) Changes in pH of
MEA, AMP, and 3-AP solutions under different CO 2 absorption times; (c) Viscosity of MEA solution under different CO 2
absorption times; (d) Viscosity of AMP solution under different CO 2 absorption times; (e) Viscosity of 3-AP solution
under different CO 2 absorption times; (f) Viscosity of the three amine solutions under different CO 2 absorption times
图 2 (a)不同CO 2 吸收时间下MEA、AMP、3-AP溶液的质量变化；(b)不同CO 2 吸收时间下MEA、AMP、3-AP的pH；
(c)不同CO 2 吸收时间下MEA溶液的黏度；(d)不同CO 2 吸收时间下AMP溶液的黏度；(e)不同CO 2
吸收时间下3-AP溶液的黏度；(f)不同CO 2 吸收时间下3种醇胺溶液的黏度