Institutt for prosess-, energi- og miljøteknologi
Recent Submissions
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Electrified externally heated rotary calciner for calcination of cement raw meal
(Peer reviewed; Journal article, 2023)The cement industry can reduce its CO2 emissions by electrifying the calciner. It can avoid emissions from fuel combustion and produce pure CO2 from the calcination reaction (CaCO3 → CaO + CO2) for direct capture. A ... -
Industrially relevant pyrolysis of diverse contaminated organic wastes: Gas compositions and emissions to air
(Peer reviewed; Journal article, 2023)Pyrolysis is a promising waste handling technique compared to incineration, especially due to its potential for greenhouse gas reduction through biochar carbon removal. This study investigated greenhouse gas and air pollutant ... -
Numerical simulation of lignin gasification: The role of gasifying agents in entrained-flow reactors
(Peer reviewed; Journal article, 2024)Biomass gasification using an Entrained-Flow Reactor (EFR) is an effective strategy for sustainable energy production and climate change mitigation. However, optimizing gasification efficiency and syngas quality requires ... -
Comparative structural reliability analysis of monopile-supported offshore wind turbines - considering the effect of flexible foundation and simulation time on long-term extreme response extrapolation
(Conference object, 2023)This paper deals with the development of semi-probabilistic design formats for ultimate strength design of monopile-supported Offshore Wind Turbines. The effect of the flexible foundation and simulation time on long-term ... -
Implied safety level in design codes for monopile offshore wind turbines: parametric study on the effect of partial safety factors
(Chapter, 2023)Offshore wind structures are subjected to complicated loads and load effects, which demand comprehensive numerical modelling representation of the physics. There is interdependence between loads, load-effects, and structural ... -
Opportunities and challenges of using SRF as an alternative fuel in the cement industry
(Journal article, 2023)Over two billion tonnes of municipal solid wastes (MSW) are generated annually from households, industrial facilities, and commercial sites. The non-hazardous fraction of MSW is used to produce solid recovered fuels (SRF), ... -
Novel design of a rotary calciner internally heated with electrical axial heaters: Experiments and modelling
(Peer reviewed; Journal article, 2023)As the share of renewable energy increases, green electricity may help reduce the carbon footprint in the lime industry. Electrifying the calciner can produce relatively pure CO2 from the calcination process (CaCO3 → CaO ... -
Electrified calciner concept for CO2 capture in pyro-processing of a dry process cement plant
(Peer reviewed; Journal article, 2023)Around two-thirds of the CO2 emission from the cement industry comes from calcite decomposition (CaCO3 → CaO + CO2), and most of this reaction happens in the calciner. So, it is possible to reduce the CO2 emission significantly ... -
Experimental and simulation studies of oxygen-blown, steam-injected, entrained flow gasification of lignin
(Peer reviewed; Journal article, 2024)This article presents results from experimental and simulation studies on a laboratory-scale pressurized O2-blown Entrained Flow biomass gasification Reactor (EFR) using pulverized commercial lignin pellets as feedstock. ... -
Distribution of PAHs, PCBs, and PCDD/Fs in products from full-scale relevant pyrolysis of diverse contaminated organic waste
(Peer reviewed; Journal article, 2023)Biomass pyrolysis is the anoxic thermal conversion of biomass into a carbon rich, porous solid, often called biochar. This could be a better waste management alternative for contaminated organic wastes than incineration, ... -
Technoeconomic evaluation of combined rich and lean vapour compression configuration for CO2 capture from a cement plant
(Peer reviewed; Journal article, 2023)A combined rich and lean vapour compression configuration was investigated for CO2 capture from a cement plant. This was to assess its performance in energy consumption, actual CO2 emission reduction, and cost reduction ... -
The Impact of Autonomous Inflow Control Valve on Improved Oil Recovery in a Thin-Oil-Rim Reservoir
(Peer reviewed; Journal article, 2024)Oil production from thin-oil-rim fields can be challenging as such fields are prone to gas coning. Excessive gas production from these fields results in poor production and recovery. Hence, these resources require advanced ... -
Simulation of blue hydrogen production by natural gas in the North Sea
(Peer reviewed; Journal article, 2023)Hydrogen is an efficient energy carrier and an important contribution to sustainable energy development. Hydrogen can be produced based on different methods and on different raw materials. Blue hydrogen is hydrogen produced ... -
Simulation of Oil Recovery Through Advanced Wells Using a Transient Fully Coupled Well-Reservoir Model
(Chapter, 2023)Oil recovery can be enhanced by maximizing the well-reservoir contact using long horizontal wells. One of the main challenges of using such wells is the early breakthrough of unwanted fluids due to the heel-toe effect and ... -
Comprehensive Local Sensitivity Analysis of the ADM1-Based Anaerobic Digestion Process
(Journal article, 2022)Anaerobic digestion is a popular method for treating waste and producing biogas. It remains challenging to automate and optimize the operation of the digester because of its complex process and suffering from great ... -
Demonstration of CO2 Capture Process Monitoring and Solvent Degradation Detection by Chemometrics at the Technology Centre Mongstad CO2 Capture Plant
(Peer reviewed; Journal article, 2023)Solvent management is one of the important current challenges in post combustion carbon capture (PCC) technology development. Using large-scale 1960 h test campaign data (Technology Centre Mongstad, Norway, 2015 MEA Test), ... -
Release of liquid CO2 from the bottom of a duct
(Peer reviewed; Journal article, 2023)This paper presents experimental results of the rapid phase transition of liquid CO2 released from the bottom of a small rectangular duct (BR). The aim is to consider the factors influencing the phase transitions and the ... -
Biodiesel Production through the Transesterification of Waste Cooking Oil over Typical Heterogeneous Base or Acid Catalysts
(Peer reviewed; Journal article, 2023)For the production of biodiesel from waste cooking oil with an acid value of 1.86 mg KOH/g, five heterogeneous catalysts—Ba(OH)2, CaO, MgO, ZnO, and AlCl3—were employed. To optimize the reaction parameters of each catalyst, ... -
Chemical equilibrium model to investigate scaling in moving bed biofilm reactors (MBBR)
(Peer reviewed; Journal article, 2019)Moving bed biofilm reactor (MBBR) is a robust, flexible and compact technology for treatment of medium to high strength wastewater. However, while treating with high concentration of ammonium, phosphorus and metal ions, ... -
A fuzzy approach to rebust Social Sustainability Assessment(ISSA)
(Journal article, 2023)Social sustainability has been increasingly recognized as a fundamental component of sustainable development in recent years. It is still challenging to measure social sustainability in comparison to other dimensions of ...
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