Title of Document: Efficiency Enhancement for Natural Gas Liquefaction with CO2 Capture and Sequestration through Cycles Innovation and Process Optimization Abdullah Alabdulkarem, Doctor of Philosophy, 2014 Directed By: Professor, Reinhard Radermacher, Mechanical Engineering Liquefied natural gas (LNG) plants are energy intensive. As a result, the power plants operating these LNG plants emit hi...

In the present paper, Mathematica, the famous computer algebra, is used to perform steadystate and dynamic simulations of a multi-component distillation column. In order to describe the vapor liquid equilibrium (VLE) relationships and to compute the vaporand liquid-phase enthalpies, the Soave Redlich Kwong equation of state (SRK EOS) is chosen. Rigorous modeling is performed where both mass and...

The modified Claus process is characterized by several problems, namely poor instrumentation and no precise kinetic model for predicting the behaviour of the reactors. Using operational data of an industrial plant, this paper proposes a general framework for development of a plant-wide simulation model for modified Claus process based on simultaneous data reconciliation and parameter estimation...

In order to avoid carbon dioxide (CO2) built up in the atmosphere, the major source of global warming, CO2 capture must be applied to large point sources including natural gas processing. Membrane process, a relatively new technology among other available techniques, can be used for the purpose of CO2 capture from natural gas. Over the decades, the membrane performance has been described by dif...

Researchers often find the need to integrate commercial process simulators such as Aspen Hysys, Plus, PRO/II or others with their own applications. However, despite relevance of these tools, authors have found no systematic research on connection methodologies, a gap in literature that they aim address this work. The will study methodologies popular simulator Hysys four tools hold current poten...

The article provides an overview of knowledge on how to model fuel cells using software which is oriented system modeling. covers several types cell such as SOFC, MCFC and PEMFC. Fuel were modeled mainly three software, i.e. Aspen Hysys, Plus Matlab. Based our literature review, we decided use Hysys create a proton conducting SOFC model. Model construction based reduced order approach that publ...

Methanol is one of the most important petrochemical products which is produced in large extents worldwide. Nowadays, it is mostly used as a feed in olefin units for production of synthetic fuels. In this work, methanol production process, under license of Davy Corporation, is simulated by using HYSYS software. The simulations are carried out for steady state condition. The simulation results we...

Optimization modeling and simulation of the autothermal reactor in the methanol production process was effectively done using the quasi –Newton scheme of optimization in Aspen Hysys 2006.5. The primary variables selected for this modeling were heat flow value of the following: Steam1;steam2; coolant1; coolant2; coolant3. After running the process optimization simulation, total cost was minimize...

The catalytic-distillation process for the production of t-amyl-methyl-ether (TAME) from methanol and isoamylenes was simulated by developing the process model as a combination of unit operations from HYSYS operations palette. Geometrical characteristics of catalytic-distillation column are those of an industrial pilot plant and the results of simulation were compared with experimental data. T...