反应精馏存在问题，麻烦马友帮忙解决
DECANTER分相器模块*WARNING
ETHYL-01 WAS SPECIFIED AS AN L2-KEY COMPONENT BUT IS NOT
PRESENT IN THE INLET STREAM. SPECIFICATION IGNORED.
*WARNING
NO PHASE SPLITTING OCCURS AT GIVEN SPECIFICATIONS. SINGLE PHASE
SOLUTION IS RETURNED.
RADFRAC 反应精馏模块
***SEVERE ERROR
A LIQUID FEED/PUMPAROUND TO THE TOP STAGE IS REQUIRED WHEN
'Q1=0' IS SPECIFIED IN 'COL-SPECS'; REQUIRED FEED/PUMPAROUND
HAS ZERO FLOW.
*WARNING
REST OF BLOCK BYPASSED DUE TO SEVERE ERROR.
麻烦马友看下，是什么原因，回流老是为0，收敛我设置了200了，应该不是问题，
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