Knowledge hub

Author(s)
Josep-Anton Feliu and Miquel Àngel Alós (Inprocess) and Michele Manzulli (Virtual Materials Group Europe)

Magazine
2018. Cutting-Edge Technology for Carbon Capture, Utilization and Storage (CETCCUS), Pages: 135 - 146

Abstract / Summary
The associated gas of an oil-producing field in off-shore Brazil is treated to remove water, hydrocarbon condensate, H2S and CO2. For environmental reasons, the CO2-rich permeate stream from the gas treatment process must be re-injected into the reservoir. Several compression systems boost the pressure of the permeate stream (2.5 bara) to a pressure in the range of 450–550 bara, pressure level suitable for reinjection. Many blowdown valves are installed along the compression systems, the associated pipelines and equipment. Hazard analysis did identify the potentiality for solid CO2 (dry ice) formation during depressurization (blowdown) in, basically, any section of the different process units. The formation of dry ice during depressurization constitutes a threat to the safety integrity of the system. Several simulation studies have been carried out to determine if in current process conditions the depressurization of the process sections could lead to the formation of dry ice. VMGSim, from Virtual Materials Group (VMG), was the dynamic process simulator of choice due to the availability of the APR-SolidCO2 property package, which allowed for the quantitative determination of the dry-ice formation. The dynamic analysis performed with the simulator allowed to determine the amount of dry ice formed, the time when the CO2 started to appear, and the time when CO2 melted back and disappeared. Once the formation of dry ice was confirmed by the different dynamic analysis, several mitigation techniques were planned and tested with additional dynamic simulation runs that helped to diminish the dry-ice appearance and its impact on plant performance.

Author(s)
Leonardo Carpio

Congress
The Rapidly Changing World of LNG: Finding your Competitive Advantage in 2018

Abstract / Summary
Inprocess contribution to the Aspentech's hosted seminar entitled: The Rapidly Changing World of LNG: Finding your Competitive Advantage in 2018, held in Houston, Texas (USA), on March 2018

Author(s)
Manel Serra

Congress
Energy Simulation Technology Exhibition and Conference (2018)

Abstract / Summary
Inprocess oral contribution to the ESTEC: Energy Simulation Technology Exhibition and Conference hold in Barcelona, from May 30th to 31st, 2018

Author(s)
Josep Anton Feliu, Sergio Linuesa and Miquel A. Alós,

Magazine
2018. Oilfield Technology, July, Pages: (online)

Abstract / Summary
Inprocess authors discuss the application of dynamic simulation to the analysis of potential trips of the HIPPS system at the flare header of a central processing facility during trunkline pigging operations.

Author(s)
Stefano Signor and Miquel Àngel Alós (Inprocess) and José Ramón Ferrer (Espindesa)

Magazine
2018. World Fertilizer, September, Pages: 45-49

Abstract / Summary
The authors present the results of the collaboration between Espindesa and Inprocess in order to develop a software tool that acts as a digital twin of a real nitric acid plant. The tool contains a dynamic simulation model built in HYSYS of one of the Espindesa licensed processes, with the control system and most of the EDS system embedded into the process model. An HMI for control room operator training was also developed and incorporated into the digital twin.