Steady State to ASPEN plus (Aspen Technology, Inc. /www.aspentech.com /) Design Complex CHEMCAD (Chemstations, Inc. /www.chemstations.net /) Chemical Processes: Design II (WinSim Inc. /www.winsim.com /) gPROMS (Process Systems Enterprise Ltd. /www.psenterprise.com /) HYSYS (Hyprotech, Ltd. /www.hyprotech.com /) PEGS (CADcentre Ltd. /www.energyweb.net/OSO/) Pro II (SIMSCI-ESSCO division of Inven...

Process simulators are becoming basic tools in chemical engineering programs. Senior-level design projects typically involve the use of either a commercial simulator or an academic simulator such as ASPENPLUS, ChemCAD, ChemShare, FLOWTRAN, HYSYS, and ProII w/PROVISION. Many design textbooks now include exercises specifically prepared for a particular simulator. For example, the text by Seider, ...

Heightened concerns over the amount of carbon emitted from coal-related processes are generating shifts to the application of biomass. In co-gasification, where coal is gasified along with biomass, the biomass may be fed together with coal (cofeeding) or an independent biomass gasifier needs to be integrated with the coal gasifier. The main aim of this work is to evaluate the biomass introducti...

In this time of energy crises, low production rate against the increasing demand of oil and gas production regularly hampers both domestic and industrial operations. In addition, safety hazards arising from explosion and increase in the cost of production due to pumping cavitation has pose a great challenge on offshore Floating Production Storage and Off-loading (FPSO) terminals. In view of the...

Natural gas is the most popular fossil fuel in the current era and future as well. Natural gas is existed in underground reservoirs so it may contain many of non-hydrocarbon components for instance, hydrogen sulfide, nitrogen and water vapor. These impurities are undesirable compounds and cause several technical problems for example, corrosion and environment pollution. Therefore, these impurit...

The process of sulfuric alkylation isobutane with olefins is considered. model 
 the was simulated using Aspen HYSYS package

The deodorization of the refined palm oil process is simulated here using ASPEN HYSYS. In the absence of a library molecular distillation (MD) process in ASPEN HYSYS, first, a single flash vessel is considered to represent a falling film MD process which is simulated for a binary system taken from the literature and the model predictions are compared with the published work based on ASPEN PLUS ...

During transportation, there will be vaporization of LNG producing boil-off gas (BOG) and its re-liquefaction is required considering that large volume of BOG to be vented out. A cryogenic refrigeration cycle is utilized in order to re-liquefy the BOG and returns it to the cargo tank. Kapitza and claude are the usually used LNG re-liquefaction cycles. The developments in the processes adopted f...

one of the most important methods of transporting natural gas in iran and other parts of the world is the utilization of a network of pipelines. compression station and turbo compressor units play an important role in gas supply through pipelines. one of the primary concerns in these units is the reduction of fuel consumption. by cooling of exhaust gas from the source station, the pressure drop...