碱液吸收含硫废气模拟，Aspen问题，菜鸟求助

xiaozhouzhou

模拟NAOH吸收H2S却出现如下问题：
*  WARNING
   FEED PRESSURE  0.10000E+06 (N/SQM) OF STREAM 1020
   IS LOWER THAN STAGE   1 PRESSURE  0.50000E+06 (N/SQM).

*  WARNING
   FEED PRESSURE  0.10000E+07 (N/SQM) OF STREAM 101
   IS LOWER THAN STAGE  10 PRESSURE  0.10500E+07 (N/SQM).

***SEVERE ERROR
   COL-SPEC IN STDVOL-BASIS AND COMPONENT MOLAR STANDARD VOLUME(S) MISSING.

*  WARNING
   REST OF BLOCK BYPASSED DUE TO SEVERE ERROR

请问如何解决

luoggg

进气压力小于塔板压力   进不去料