Maxim Khmylov

В представленной модели для установившегося режима регулятора давления материальный баланс входящего потока и выходящего потока отличается в 2 раза. Такое явление получается для всех режимов. Предполагаю что есть ошибка в программном коде.

I adjusted the nitrogen consumption (increased to 115 mmol/h) - the calculation is being performed. The correct nitrogen : hydrogen ratio should be close to 1:1.

Dear, you have chosen the wrong calculation model of the device. Try to use an absorption column rather than a distillation column, and you will be happy. I am attaching an upgraded model.

Pay attention to other heat exchangers. An example is shown in the attached picture. On my computer, your model is calculated without problems.

Try changing the calculation type in the heat exchangers. Select the output temperature setting, not the amount of heat.

can a stream with a temperature of -20 cool a stream with a temperature of -30? Think about how the machine does this calculation.

then check the flow temperatures

In the real scheme, you will have this valve installed