STUDIES ON “THE THREE CRITICALS AND THE TWO OPTIMUMS”IN MEMBRANE GAS SEPARATION PROCESSES ( I ) “THE THREE CRITICALS”AND THEIR RELATIONSHIPS

沈光林; 李新培

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STUDIES ON “THE THREE CRITICALS AND THE TWO OPTIMUMS”IN MEMBRANE GAS SEPARATION PROCESSES ( I ) “THE THREE CRITICALS”AND THEIR RELATIONSHIPS

更新时间：2025-12-16

- STUDIES ON “THE THREE CRITICALS AND THE TWO OPTIMUMS”IN MEMBRANE GAS SEPARATION PROCESSES ( I ) “THE THREE CRITICALS”AND THEIR RELATIONSHIPS
- CIESC Journal Issue 2, (1995)
- 作者机构：
  
  中国科学院大连化学物理研究所,中国科学院大连化学物理研究所大连116023,大连,116023
- 作者简介：
- 基金信息：
- DOI：
  CLC： Q028
- Online First：25 April 1995，
  
  Published：25 April 1995
- 稿件说明：
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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：

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：

摘要

提出了“三临二优”（系指临界操作压力比R~-、临界选择系数α~-、临界进料浓度x_f~-和最优操作压力比R~+、最优选择系数α~+）新概念

通过计算、分析和优化等手段

在x_f≥0.40、R≤100、a≤100范围内获得如下通用回归公式R~-=2+B/（α~-+A）

式中A、B仅与临界进料浓度x_f~-有关

并对他们分别进行了回归。此外

还在R≤1000、a≤1000范围内给出了x_f~-=0.95和0.50时的回归公式。

Abstract

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

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