MTBE反应精馏模拟添加副反应后，精馏塔出错

ccxiaowei

使用版本是Aspen Plus9.0
错误如下
** ERROR
   OUTSIDE LOOP TOLERANCE WAS SATISFIED BUT DESIGN SPEC ITERATION
   (MIDDLE LOOP) FAILED TO CONVERGE.

***SEVERE ERROR
   MATERIAL AND ENERGY BALANCES FAILED TO CONVERGE: CHECK COL-SPECS
   OR SUPPLY BETTER TEMPERATURE AND COMPOSITION ESTIMATES.

** ERROR
   BLOCK B1 IS NOT IN MASS BALANCE:
   MASS INLET FLOW = 0.47944444E+01, MASS OUTLET FLOW = 0.68096626E+01
   RELATIVE DIFFERENCE = 0.42032361E+00

The following messages were issued during Report Generation:

*  WARNING
   KEY COMPONENT SPECIFICATIONS ARE OR BECOME INCONSISTENT
   ON THE FOLLOWING STAGES:
   14   15   16   18   20   21   25
   COLUMN TARGETING THERMAL ANALYSIS IS SKIPPED.

ccxiaowei

这是附件重新上传一下