沈光林, 李新培. STUDIES ON “THE THREE CRITICALS AND THE TWO OPTIMUMS”IN MEMBRANE GAS SEPARATION PROCESSES ( I ) “THE THREE CRITICALS”AND THEIR RELATIONSHIPS[J]. CIESC Journal, 1995, (2).
沈光林, 李新培. STUDIES ON “THE THREE CRITICALS AND THE TWO OPTIMUMS”IN MEMBRANE GAS SEPARATION PROCESSES ( I ) “THE THREE CRITICALS”AND THEIR RELATIONSHIPS[J]. CIESC Journal, 1995, (2).DOI:
Concepts of "the three criticals and the two optimums"
i. e the critical operating pressure ratio (R-)
selectivity coefficient (α-) and feed concentration (x1-)
and the optimum operating pressure ratio and selectivity coefficient are first proposed. And through calculation
analysis and optimization in the range of x1≥0.4
R≤100 and α≤100
a general regression equation is obtained and shown as followsR-=2+B/(α-+A)where parameters A and B are related to x1- only
and the regression equations of xf- and A B are also obtained respectively. Moreover the following regression equations are obtained in the range of R≤1000and α≤1000R-=2+2. 15205/(α-)1.000568+2.07563 for xf-=0.95R-=2+6.2727/(α-)0.960+3.8307 for xf-=0.50