SONIC SPEED AND CRITICAL-POINT MEASUREMENTS IN ETHANE BY THE ACOUSTIC-RESONANCE METHOD

被引：12

作者：

COLGATE, SO

SIVARAMAN, A

DEJSUPA, C

机构：

[1] Department of Chemistry, University of Florida, Gainesville

来源：

FLUID PHASE EQUILIBRIA | 1992年 / 76卷

关键词：

ACOUSTIC; RESONATOR; SONIC SPEED; PHASE BOUNDARY; BUBBLE POINT; DEWPOINT; CRITICAL POINT;

D O I：

10.1016/0378-3812(92)85086-N

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Acoustic resonance measurements on pure ethane confined to a cavity have been used as a sensitive probe for location of the critical point. The method is similar to that used previously for the critical point determination in pure CO2. The sensitivity of the method derives from a strong singularity in sonic speed at the critical point. Twenty-three isochores were studied close to the critical point. These reveal bubble points, dewpoints and the critical point. A three dimensional plot (P, T, c) of the phase diagram for ethane shows this effect clearly. Comparison of the present experimental critical temperature for ethane (305.370 K) with an earlier measurement (305.379 K) by Morrison shows good agreement.

引用

页码：175 / 185

页数：11

共 28 条

[1] The critical constants of ethane
Beattie, JA
Su, GJ
Simard, GL
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1939, 61 : 924 - 925
[2] BERESTOV AT, 1973, ZH EKSP TEOR FIZ+, V64, P2232
[3] BERESTOV AT, 1979, TEPLOFIZ VYS TEMP, V17, P1202
[4] BULAVIN PA, 1971, UKR FIZ ZH, V16, P90
[5] ACOUSTIC CAVITY METHOD FOR PHASE-BOUNDARY DETERMINATIONS - THE CRITICAL-TEMPERATURE OF CO2
COLGATE, SO
SIVARAMAN, A
DEJSUPA, C
MCGILL, KC
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1991, 62 (01) : 198 - 202
[6] SONIC SPEED AND CRITICAL-POINT MEASUREMENTS IN ETHANE BY THE ACOUSTIC-RESONANCE METHOD
COLGATE, SO
SIVARAMAN, A
DEJSUPA, C
[J]. FLUID PHASE EQUILIBRIA, 1992, 76 : 175 - 185
[7] DONSLIN DR, 1973, J CHEM THERMODYN, V5, P491
[8] EQUATION OF STATE FOR THERMODYNAMIC PROPERTIES OF FLUIDS
GOODWIN, RD
[J]. JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS SECTION A-PHYSICS AND CHEMISTRY, 1975, A 79 (01): : 71 - 79
[9] LIQUID-VAPOR EQUILIBRIUM RELATIONS IN ETHANE-HYDROGEN SULFIDE SYSTEM
KAY, WB
BRICE, DB
[J]. INDUSTRIAL AND ENGINEERING CHEMISTRY, 1953, 45 (03): : 615 - 618
[10] Liquid-vapor phase equilibrium relations in ethane-n-heptane system
Kay, WB
[J]. INDUSTRIAL AND ENGINEERING CHEMISTRY, 1938, 30 : 459 - 465

← 1 2 3 →