萌新求助

不会化工的萌新

大佬们，萌新问一下这个问题怎么解决
*  WARNING
   AT Z =   0.50000E-01 :
   REACTION RATE IS NEGATIVE FOR REACTION (1) BUT
   PRODUCT 'ISOPROPY' IS NOT PRESENT.  PROBABLE CAUSE:
   ZEROTH ORDER PRODUCT NOT PRESENT.  RATE IS SET TO ZERO.

*  WARNING
   AT Z =   0.55000     :
   REACTION RATE IS NEGATIVE FOR REACTION (1) BUT
   PRODUCT 'ISOPROPY' IS NOT PRESENT.  PROBABLE CAUSE:
   ZEROTH ORDER PRODUCT NOT PRESENT.  RATE IS SET TO ZERO.

*  WARNING
   AT Z =    5.5500     :
   REACTION RATE IS NEGATIVE FOR REACTION (1) BUT
   PRODUCT 'ISOPROPY' IS NOT PRESENT.  PROBABLE CAUSE:
   ZEROTH ORDER PRODUCT NOT PRESENT.  RATE IS SET TO ZERO.

banknation

你模拟的是什么问题，在什么条件下，会产生如此问题......
这事儿只有你知道，我们都不清楚！
把模拟文件传上来，大家才能知道是怎么回事呀！

zxk1355114

反应原料流量为0，未发生反应