English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Steady/Dynamic models for optimization of natural gas processing facility to sales gas with exergy pinch concept has been developed and reported in the literature. Such models are only validated at steady-state, which means the models can predict process performance at different operating points. However, without dynamic validation, there is no guarantee that the model in question would predict dynamic responses accurately. Plant data logs were provided by the University of Calgary, AspenTech, Canada. Two cases were considered: A natural gas processing facility which employs end-point exchanger model approach and weighted exchanger model approach to produce sales gas (LNG) is optimized to meet the LNG required dew point temperature (-15C) using a steady state flow. A conventional absorber temperature profile, reboiler duty were used for comparison. It is observed that the model satisfactorily predicts the pilot plant behavior under multiple process inputs and disturbances. All major units such as mixers, separators, heat exchangers, distillation column, adjust and balance in the base case has been simulated. The operating conditions are taken to match the field conditions of an ideal process plant. Peng Robinson (PR) equation of state (EOS) has been employed. The simulation was initially made offline with an ideal state inlet gas composition. The responses were recorded for various changes in the inlet gas composition and pressure. The performance of the plant was studied to ensure that the steady state operation of the plant is not significantly affected. This shall lead to maximum production using customer contractual limits. Keywords— Aspen Modeling, Steady/Dynamics State, Exergy-Pinch Concept, Property Package (EOS)

SIMULATION AND OPTIMIZATION OF A NATURAL GAS PROCESSING FACILITY TO SALES GAS (LNG) USING ASPEN-HYSYS WITH EXERGY-PINCH CONCEPT