Aspen Hysys User Certification Exam Questions |best| Jun 2026

B — Peng-Robinson is recommended for hydrocarbon systems in gas processing.

Hot stream 150°C → 120°C; Cold stream 20°C → 130°C. The cold outlet (130°C) is higher than the hot outlet (120°C). This violates the 2nd law of thermodynamics. HYSYS will flag it as a temperature cross. aspen hysys user certification exam questions

Based on feedback from certified users, here are the most frequent "gotchas." B — Peng-Robinson is recommended for hydrocarbon systems