Blar i Institutt for prosess-, energi- og miljøteknologi på forfatter "Øi, Lars Erik"

Viser treff 21-29 av 29

    • Simulation and Economic Optimization of Amine-based CO2 Capture using Excess Heat at a Cement Plant 

      Ali, Hassan; Øi, Lars Erik; Eldrup, Nils Henrik (Journal article; Peer reviewed, 2018)
      In order to remove CO2 from power or process industry, a well-known method is absorption in monoethanolamine (MEA) followed by desorption, and this technology has been in operation for decades. The major challenge is the ...

    • Simulation and Economic Optimization of Vapour Recompression Configuration for Partial CO2 capture 

      Øi, Lars Erik; Sundbø, Erik; Ali, Hassan (Journal article; Peer reviewed, 2017)
      A standard method for CO2 capture is by absorption in an amine based solvent followed by desorption. Such plants are traditionally designed for removal of 85-90 % CO2 from the exhaust gas as a reasonable trade-off between ...

    • Simulation and Impact of different Optimization Parameters on CO2 Capture Cost 

      Aromada, Solomon Aforkoghene; Karunarathne, Sumudu; Eldrup, Nils Henrik; Orangi, Sina; Farsi Madan, Farzan; Fajferek, Katarzyna Grazyna; Sæter, Njål Torgeir; Bahri, Syaiful; Øi, Lars Erik (Journal article; Peer reviewed, 2021)
      The influence of different process parameters/factors on CO2 capture cost, in a standard amine based CO2 capture process was studied through process simulation and cost estimation. The most influential factor was found to ...

    • Simulation based Cost Optimization tool for CO2 Absorption Processes: Iterative Detailed Factor (IDF) Scheme 

      Aromada, Solomon Aforkoghene; Eldrup, Nils Henrik; Øi, Lars Erik (Journal article; Peer reviewed, 2021)
      A simple, fast, and accurate process simulation based cost estimation and optimization scheme was developed in Aspen HYSYS based on a detailed factorial methodology for solvent-based CO2 absorption and desorption processes. ...

    • Simulation of Condensation in Biogas containing Ammonia 

      Øi, Lars Erik; Bråthen, Terje; Hovland, Jon (Peer reviewed; Journal article, 2021)
      Condensation in raw biogas during compression is a problem because the CO2 and water in the liquid phase is very corrosive. Raw biogas typically contains 60 mol-% methane, 40 mol-% CO2, is saturated with water and may ...

    • Simulation of Condensation in Compressed Raw Biogas Using Aspen HYSYS 

      Øi, Lars Erik; Hovland, Jon (Journal article; Peer reviewed, 2018)
      Raw biogas typically contains 60 % methane, 40 % CO2, small amounts of other components and is saturated with water. It is a question whether raw biogas can be compressed to high pressures without condensation. The aim of ...

    • Simulation of dew points in raw biogas using PR and SRK equations of state : 

      Bråthen, Terje; Øi, Lars Erik; Hovland, Jon (Peer reviewed; Journal article, 2019)
      Biogas contains mainly methane, but raw biogas can contain large amounts of CO2 and is normally saturated with water. Condensation, especially during compression, may lead to operational problems. The aim of this work is ...

    • Simulation of improved absorption configurations for CO2 capture 

      Øi, Lars Erik; Aromada, Solomon Aforkoghene (Conference object; Peer reviewed, 2015-11-25)
      The most well-known technology for post combustion CO2 capture from exhaust gas is absorption in an amine-based solvent followed by desorption. The drawback of this method is the high heat consumption required for desorption. ...

    • Techno-Economic Assessment of Different Heat Exchangers for CO2 Capture 

      Aromada, Solomon Aforkoghene; Eldrup, Nils Henrik; Normann, Fredrik; Øi, Lars Erik (Peer reviewed; Journal article, 2020)
      We examined the cost implications of selecting six different types of heat exchangers as the lean/rich heat exchanger in an amine-based CO2 capture process. The difference in total capital cost between different capture ...