Browsing Institutt for kjemisk prosessteknologi by Title
Now showing items 450-469 of 1784
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Dissipation rate estimation in a rectangular shaped test section with periodic structure at the walls
(Journal article; Peer reviewed, 2018)An experimental study of turbulent flow concerning the characterization of turbulence by two-point correlation and estimations of the turbulent dissipation rate is presented. The fluid used is deionized water and the test ... -
A distributed feedback-based online process optimization framework for optimal resource sharing
(Peer reviewed; Journal article, 2021)Distributed real-time optimization (RTO) enables optimal operation of large-scale process systems with common resources shared across several clusters. Typically in distributed RTO, the different subsystems are optimized ... -
Distributed Feedback-Optimizing Control Strategies: an Experimental Validation
(Master thesis, 2023)I industrielle settinger består prosesser ofte av flere undersystemer som deler en felles begrensning, for eksempel en delt ressurs. Denne oppgaven fokuserer på steady-state sanntidsoptimalisering (RTO) problemet i et ... -
Distributed optimization using ADMM for Optimal Design of Thermal Energy Storage systems
(Master thesis, 2020)Hovedmålet vårt i begynnelsen av forskningsperioden har vært å benytte den alternerende retningsmetoden til multiplikatorer (ADMM) for å få en distribuert optimaliseringsalgoritme for å løse strukturerte ikke-lineære ... -
Dividing wall columns for natural gas liquefaction plants
(Journal article; Peer reviewed, 2018)In order to meet current carbon dioxide emissions reduction challenges, natural gas processing and refining industries have to find the ways to minimize energy requirements of distillation operations. Building on foundations ... -
Dolomite-based Sorbents for High Temperature Carbon dioxide capture.
(Master thesis, 2017)The impact of doping with inert oxides on the long term performance of dolomite-based sorbents for high temperature CO_2 has been investigated in this work. Arctic dolomite was doped with with various oxides Al2O3, ZrO_2, ... -
Doped carbon nanostructures as metal-free catalysts for oxidative dehydrogenation of light alkanes
(Master thesis, 2014)Catalytic reactions are often carried out on various supported metals, these usually being noble metals or metal oxides. Even though metal based catalysts plays a major role in today s industrial processes, they still have ... -
Droplet breakup and coalescence in compact wellstream seperation
(Dr. ingeniøravhandling, 0809-103X; 2000:2, Doctoral thesis, 2000) -
Droplet Crystallization in Water-in-Crude Oil Emulsions: Influence of Salinity and Droplet Size
(Journal article; Peer reviewed, 2017)Ice crystallization in confined spherical geometries is investigated experimentally at ambient pressure conditions. Water-in-crude (w/o) oil emulsions are formed by homogenization of an acidic North Sea crude oil with water ... -
Droplet Deposition in High- Pressure Natural-Gas Streams
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:110, Doctoral thesis, 2010)The Norwegian University of Science and Technology has been leading a project that investigates the phenomena related to high pressure gas liquid separation (HiPGLS) in natural-gas streams. At high pressures, liquid from ... -
Dry reforming of methane over Zr- and Y-modified Ni/Mg/Al double-layered hydroxides
(Journal article; Peer reviewed, 2018)Zr- and Y-promoted Ni/Mg/Al double-layered hydroxides were investigated in dry reforming of methane, DRM (10% CH4, CH4/CO2 = 1, GHSV = 20,000 h−1) for the first time. Modification of the double-layered hydroxides with 5 wt% ... -
DT2_2017_1 Degradation and corrosion of amines (from a structural perspective)
(Research report, 2017)Degradation and corrosion of amine solutions in post combustion CO2 capture plants increases the cost of the process due to operational problems, the need for high quality material in the plant and reduction of the solvent's ... -
Dual-function catalysis in propane dehydrogenation over Pt-1-Ga2O3 catalyst: Insights from a microkinetic analysis
(Peer reviewed; Journal article, 2020)The kinetics of propane dehydrogenation over single‐Pt‐atom‐doped Ga2O3 catalyst has been examined by combining density functional theory calculations and microkinetic analysis. The doping of Pt not only can improve the ... -
Durability of a PVAm/PVA Blend Membrane in Natural Gas Sweetening
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:138, Doctoral thesis, 2012) -
Dynamic Co-Cultivation Process of Corynebacterium glutamicum Strains for the Fermentative Production of Riboflavin.
(Journal article, 2021)Residual streams from lignocellulosic processes contain sugar mixtures of glucose, xylose, and mannose. Here, the industrial workhorse Corynebacterium glutamicum was explored as a research platform for the rational utilization ... -
Dynamic Extremum Seeking Control Using ARX model
(Master thesis, 2018)In the design of the dynamic ESC, a wave perturbation is decided to be not a sinusoidal wave but a pseudo-random binary sequence(PRBS) wave. The reason behind this is that diverse frequencies in the PRBS wave make the ARX ... -
Dynamic model and Optimization of Recirculating Aquaculture System
(Master thesis, 2021)Abstract will be available on 2024-06-30 -
Dynamic modeling and optimalization of the cheese making procedure
(Master thesis, 2017)This thesis has successfully derived an dynamic model based on analytic solutions for production of semi-hard cheeses on the basis of raw milk from the cattle breed Norwegian red. The main emphasis has been to create a ... -
Dynamic modeling of the solvent regeneration part of a CO2 capture plant
(Journal article; Peer reviewed, 2013)In this work, a system of unit operations is modeled and implemented in MATLAB for dynamic simulation of the regeneration part of the CO2 capture process. The system consists of a stripper, a reboiler and a condenser, and ... -
Dynamic modelling of a Hydrocracker
(Master thesis, 2016)Different types of petroleum refining processes were considered to be modelled in the Kongsberg dynamic modelling software K-Spice. Multiple oil and gas processing units exist in the model library, which begs the question ...