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Learn Aspen Plus in 24 Hours 2nd Edition Solution Files
Thomas A. Adams II
January 6, 2022 (v1)
Keywords: Aspen Plus, Education, Learn Aspen Plus in 24 Hours, Simulation
These Aspen Plus v12 simulations are the solution or demonstration files for the book Learn Aspen Plus in 24 Hours, 2nd Edition, by Thomas A. Adams II. They are given as-is with no warranty or guarantee of accuracy or correctness. They are for educational purposes only.

The files list contains a large .zip of all files, or otherwise you can download them independently.

Files correspond to these tutorials:

Tutorial 2 Physical Property Modelling - Selecting physical properties. Understanding the database.
Tutorial 3 Problem Solving Tools - Design Specs and Sensitivity Analyses
Tutorial 4 Heat Exchangers - HEATER, HEATX
Tutorial 5 Equilibrium-based Distillation Models - RadFrac (in equilibrium mode)
Tutorial 6 Advanced Problem Solving Tools - Utilities, GHG Emissions, Optimization
Tutorial 7 Chemical Reactor Models - RSTOIC, REQUIL, RYIELD, RGIBBS, RCSTR, RPFR
Tutorial 8 Rate-based Distillation Models - RadFrac (in rate-based mode)
Tutorial 9 Custom Models and External Con... [more]
Aspen Plus Simulations of a Lignocellulosic Biomass-to-Butanol Thermochemical Process
Chinedu Okoli, Thomas A Adams II
July 6, 2021 (v1)
Keywords: Aspen Plus, Biofuels, Biomass, Butanol, Kinetic Model, Lignocellulosic, Mixed Alcohol Synthesis, Simulation, Thermochemical
Several Aspen Plus simulation files are presented which were used in the research paper by Chinedu Okoli and Thomas A. Adams II: "Design and Assessment of Advanced Thermochemical Plants for Second Generation Biobutanol Production Considering Mixed Alcohols Synthesis Kinetics" published in Industrial and Engineering Chemistry Research, vol 56, pp 1543-1558 (2017). Four Aspen Plus V8.4 workbook files are provided AS IS, with no guarantee of accuracy or functionality. They are the original files used in the underlying work and have not been groomed or sanitized.

The four base cases considered in this study are:

1. A "biomass only" process in which the entire plant's energy supply comes from biomass.
2. A "biomass only" process that uses a divided wall column as a part of the distillation sequence
3. A "NG and power import" process in which natural gas and grid electricity are used to provide supplementary power.
4. A "NG import" case in which natural gas (but not grid... [more]
Aspen Plus Simulations of a Macroalgae-to-Biobutanol Thermochemical Process
Chinedu Okoli, Thomas A Adams II, Boris Brigljević, J. Jay Liu
July 2, 2021 (v1)
Keywords: Aspen Plus, Biobutanol, Biofuels, Butanol, Macroalgae, Seaweed, Thermochemical Route
Three Aspen Plus simulation files are presented which were used in the research paper by Chinedu Okoli, Thomas A. Adams II, Boris Brigljevic, and J.J. Liu: "Design and economic analysis of a macroalgae-to-butanol process via a thermochemical route" published in Energy Conversion and Management, vol 123, pp 410-122 (2016). Three Aspen Plus V8 workbook files are provided AS IS, with no guarantee of accuracy or functionality. They are the original files used in the underlying work and have not been groomed or sanitized.

The three files correspond to the three case studies in the paper:

1. A "biomass only" process in which the entire plant's energy supply comes from seaweed.
2. A "NG and power import" process in which natural gas and grid electricity are used to provide supplementary power.
3. A "NG import" case in which natural gas (but not grid electricity) is used to provide supplementary power.

It may be difficult to open the files in later versions of the software.... [more]
Design Strategies for Oxy-Combustion Power Plant Captured CO2 Purification
Ikenna J. Okeke, Tia Ghantous, Thomas A. Adams II
June 28, 2021 (v1)
Keywords: Aspen Plus, Carbon Dioxide Capture, CO2 Purification, Oxy-combustion, Petroleum Coke
This submission contains Aspen Plus files for the design and systems performance analysis of oxy-combustion power plant captured CO2 purification using different techniques.
Aspen Plus Simulations of Acetone-Butanol-Ethanol Separation and Recovery Processes
Giancarlo Dalle Ave, Thomas A Adams II
April 27, 2021 (v1)
Keywords: 2-ethyl-hexanol, Acetone-Butanol-Ethanol, Aspen Plus, Decane, Decanol, Extracton, Fermentation, Hexanol, Oleyl Alcohol, Simulation
This is a collection of Aspen Plus v8.8 Simulation Files that were used to conduct the research published in Dalle Ave G, Adams TA II, "Techno-economic comparison of Acetone-Butanol-Ethanol fermentation using various extractants", Energy Conversion and Management, Volume 156, 15 January 2018, Pages 288-300. The LAPSE postprint of this work is available at LAPSE:2018.0132.

Each simulation file contains a flowsheet model of the process to recover acetone, butanol, and ethanol from the ABE fermentation broth for the following case studies:

1. Direct distillation of the ABE Broth
2. Product extraction and purification from ABE Broth using 2-Ethyl-1-Hexanol
3. Product extraction and purification from ABE Broth using Decane
4. Product extraction and purification from ABE Broth using Decanol
5. Product extraction and purification from ABE Broth using Hexanol
6. Product extraction and purification from ABE Broth using Mesitylene
7. Product extraction and purification from ABE... [more]
Aspen Plus Simulation of a Rectisol Process for Blue Hydrogen Production
Thomas A Adams II
March 12, 2021 (v2)
This is an Aspen Plus v12 model for a Rectisol process used for removing CO2 from a shifted syngas stream arising from steam methane reforming for the purposes of Blue hydrogen production. It is intended for educational use, and is useful as a starting point for those interested in simulating this process. It is not optimized in any way, but it contains a working flowsheet for those interested in modifying it for your own purposes.

The simulation was developed using the simulation strategy given in Adams TA II, Khojestah Salkuyeh Y, Nease J. Processes and Simulations for Solvent-based CO2Capture and Syngas Cleanup. Chapter in: Reactor and process design for in sustainable energy technology. Elsevier (2014). Pages 163-232. ISBN: 978-0-444-59566-9. It is based on the process discussed in Doctor RD, Molburg JC, Thimmapuram PR, Berry GF, Livengood CD. Gasification combined cycle: carbon dioxide recovery, transport, and disposal. US DOE Report, Argonne National Laboratory ANL/ESD-24. 19... [more]
Optimal design and operation of a waste tire feedstock polygeneration system
Avinash Shankar Rammohan Subramanian, Truls Gundersen, Thomas A. Adams II
October 8, 2020 (v1)
Keywords: Carbon Dioxide Capture, Gasification, Global Optimization, Polygeneration system, Rubber, Waste Tire, Waste-to-Energy
The accompanying model for the paper 'Optimal design and operation of a waste tire feedstock polygeneration system' is presented. The model is written using the GOSSIP software platform and modeling language.
Design and Eco-techno-economic Analyses of SOFC/GT Hybrid Systems Accounting for Long-term Degradation Effects
Haoxiang Lai, Nor Farida Harun, David Tucker, Thomas Adams II
November 24, 2020 (v2)
Models and codes that were used in this work. Please read the simulation instruction.
Technoeconomic Analysis of a Waste Tire to Liquefied Synthetic Natural Gas (SNG) energy system
Avinash Shankar Rammohan Subramanian, Thomas A. Adams II, Truls Gundersen
June 1, 2020 (v2)
Keywords: Carbon Dioxide Capture, Rubber, Synthetic Natural Gas, Waste tire, Waste To Energy
Thermochemical conversion of solid wastes through gasification offers the dual benefit of production of high-value fuels and
environmentally friendly waste disposal. Waste tires in particular may be a suitable feedstock for gasification as a result of their
high energy content (LHV of approximately 34 MJ/kg, higher than coal), high volatile matter content, and low ash content. Rotary
kilns for steam gasification are a promising and technologically mature option to handle such difficult solid wastes that have a
wider range of compositions, particle sizes, and moisture contents. In this paper, we propose a novel process for production of
liquefied synthetic natural gas (SNG) from waste tires. We use experimental data available in the open literature to represent the
complex steam gasification unit operation and study three design cases: Without CCS, with precombustion CCS and with preand postcombustion CCS in two locations: USA and Norway. The thermodynamic, economic and environmen... [more]
Finding better limit cycles of semicontinuous distillation
Pranav Bhaswanth Madabhushi, Thomas Adams II
March 22, 2019 (v1)
There are three different ways of operating the distillation process based on production requirements and operational flexibility. Semicontinuous distillation of multicomponent mixtures is a cost-effective technology in the intermediate production range when compared with traditional batch and continuous distillation processes. The process, which has both continuous and discrete dynamics, operates in a limit cycle (an isolated periodic orbit). Design of this process entails finding the system’s time-invariant parameters, for example, equipment design parameters, reflux rate etc., to operate in a limit cycle having acceptable performance. In semicontinuous distillation studies, the performance metric chosen is the separation cost, which is defined as the total annualized cost-per-production. The state-of-the-art design procedure involves determining an initial state for estimating the limit cycle through the dynamic simulation of the process and is found to be effective. However, it lac... [more]
Distributing Characteristics within Fuel Cell Stacks with features that Fuel/Air Manifolds Penetrated through Plane Zone and Open Outlet Manifold
Dai Fen Chen
September 19, 2018 (v1)
Keywords: 3D large scale simulating, Flow and temperature distribution characteristics, Solid oxide fuel cell stack, Structure features
Although many numerical models based on different fuel cell stack designs have been developed in past decades, most of the achieved optimized results are greatly dependent on the specific designs, cell numbers and geometric values. Achieving the general relationship between the structure features and distribution trends of key physics items, that is independent on the specific design would be high instructive. To achieve high volumetric/gravimetric power density and simple manufacturing process, both fuel and air manifolds of a solid oxide fuel cell (SOFC) stack are always designed to place within cell plane zone and penetrated through it; and open outlet manifold is also adopted. In this study, the three dimension large scale multi-physics numerical model for a typical SOFC stack with the above two design features is well completed by carefully coupling momentum, mass, energy and quasi electrochemical reaction equations. Then, the general relations between these structure features and... [more]
Aspen Plus Simulation of Biomass-Gas-and-Nuclear-To-Liquids (BGNTL) Processes (Using CuCl Route)
James Alexander Scott, Thomas Alan Adams II
August 7, 2018 (v1)
These are Aspen Plus simulation files for a Biomass-Gas-and-Nuclear-To-Liquids chemical plant (a conceptional design), which uses the Copper-Chloride route for hydrogen production. This is a part of a larger work (see linked LAPSE record for pre-print and associated publication in Canadian J Chem Eng). Process sections and major units in this simulation include: Gasification, Integrated-Gasification-Methane-Reforming, Pre-Reforming, Water Gas Shift, Autothermal Reforming, Syngas Blending and Upgrading, Solid Oxide Fuel Cell power islands, Fischer-Tropsch Synthesis, Methanol Synthesis, Dimethyl Ether Synthesis, Heat Recovery and Steam Generation, CO2 Compression for Sequestration, Cooling Towers, and various auxiliary units for heat and pressure management. See the linked work for a detailed description of the model.
Petroleum coke and Natural gas-To-Liquids Aspen Plus Simulation
Ikenna J Okeke, Thomas A Adams II
July 19, 2018 (v1)
Keywords: Aspen Plus, Fischer-Tropsch Synthesis, Integrated Reforming, Petroleum Coke
Six Aspen Plus simulation files for the conversion of petroleum coke and/or natural gas to liquid fuels (synthetic gasoline and diesel) are presented. The base simulation files were designed with carbon capture and sequestration (CCS) technology with the corresponding plant without CCS.

The processes may include various technologies such as petcoke gasification, integrated gasification and autothermal natural gas reforming, gas cleaning, water gas shift reaction, MDEA based carbon capture, Claus process, FT synthesis, and other processing steps.

The six processes are: PSG_CCS (petcoke standalone gasification with CCS), PSG_No_CCS (petcoke standalone gasification without CCS), PG-INGR_CCS (petcoke gasification integrated natural gas reformer with CCS), PG-INGR_No_CCS (petcoke gasification integrated natural gas reformer without CCS), PG-ENGR_CCS (petcoke gasification external natural gas reformer with CCS), PG-ENGR_No_CCS (petcoke gasification external natural gas reformer with... [more]
Biomass-Gas-and-Nuclear-To-Liquids Aspen Plus Simulations
Leila Hoseinzade, Thomas A. Adams II
December 7, 2018 (v2)
In this paper, several new processes are proposed which co-generate electricity and liquid fuels (such as diesel, gasoline, or dimethyl ether) from biomass, natural gas and heat from a high temperature gas-cooled reactor. This carbonless heat provides the required energy to drive an endothermic steam methane reforming process, which yields H2-rich syngas (H2/CO>6) with lower greenhouse gas emissions than traditional steam methane reforming processes. Since downstream Fischer-Tropsch, methanol, or dimethyl ether synthesis processes require an H2/CO ratio of around 2, biomass gasification is integrated into the process. Biomass-derived syngas is sufficiently H2-lean such that blending it with the steam methane reforming derived syngas yields a syngas of the appropriate H2/CO ratio of around 2. In a prior work, we also demonstrated that integrating carbonless heat with combined steam and CO2 reforming of methane is a promising option to produce a syngas with proper H2/CO ratio for Fischer... [more]
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