Novel Natural Gas to Liquids Processes: Process Synthesis and Global Optimization Strategies

AIChE Journal ◽  
2013 ◽  
Vol 59 (2) ◽  
pp. 505-531 ◽  
Author(s):  
Richard C. Baliban ◽  
Josephine A. Elia ◽  
Christodoulos A. Floudas
Keyword(s):  
Global Optimization ◽  
Natural Gas ◽  
Process Synthesis ◽  
Gas To Liquids

scholarly journals Enhancing natural gas-to-liquids (GTL) processes through chemical looping for syngas production: Process synthesis and global optimization

2018 ◽  
Vol 113 ◽  
pp. 222-239 ◽  
Author(s):  
William W. Tso ◽  
Alexander M. Niziolek ◽  
Onur Onel ◽  
C. Doga Demirhan ◽  
Christodoulos A. Floudas ◽  
...  
Keyword(s):  
Global Optimization ◽  
Natural Gas ◽  
Production Process ◽  
Process Synthesis ◽  
Chemical Looping ◽  
Syngas Production ◽  
Gas To Liquids

Reprint of: Enhancing natural gas-to-liquids (GTL) processes through chemical looping for syngas production: Process synthesis and global optimization

2018 ◽  
Vol 116 ◽  
pp. 521-538 ◽  
Author(s):  
William W. Tso ◽  
Alexander M. Niziolek ◽  
Onur Onel ◽  
C. Doga Demirhan ◽  
Christodoulos A. Floudas ◽  
...  
Keyword(s):  
Global Optimization ◽  
Natural Gas ◽  
Production Process ◽  
Process Synthesis ◽  
Chemical Looping ◽  
Syngas Production ◽  
Gas To Liquids

Multi-scale approaches for gas-to-liquids process intensification: CFD modeling, process synthesis, and global optimization

2017 ◽  
Vol 105 ◽  
pp. 276-296 ◽  
Author(s):  
Onur Onel ◽  
Alexander M. Niziolek ◽  
Holly Butcher ◽  
Benjamin A. Wilhite ◽  
Christodoulos A. Floudas
Keyword(s):  
Global Optimization ◽  
Process Intensification ◽  
Process Synthesis ◽  
Cfd Modeling ◽  
Multi Scale ◽  
Modeling Process ◽  
Gas To Liquids

Biomass and Natural Gas to Liquid Transportation Fuels and Olefins (BGTL+C2_C4): Process Synthesis and Global Optimization

2015 ◽  
Vol 54 (1) ◽  
pp. 359-385 ◽  
Author(s):  
Onur Onel ◽  
Alexander M. Niziolek ◽  
Josephine A. Elia ◽  
Richard C. Baliban ◽  
Christodoulos A. Floudas
Keyword(s):  
Global Optimization ◽  
Natural Gas ◽  
Process Synthesis ◽  
Transportation Fuels ◽  
Gas To Liquid

Production of benzene, toluene, and xylenes from natural gas via methanol: Process synthesis and global optimization

AIChE Journal ◽  
2016 ◽  
Vol 62 (5) ◽  
pp. 1531-1556 ◽  
Author(s):  
Alexander M. Niziolek ◽  
Onur Onel ◽  
Christodoulos A. Floudas
Keyword(s):  
Global Optimization ◽  
Natural Gas ◽  
Process Synthesis ◽  
Benzene Toluene

scholarly journals Gas to Liquids Techno-Economics of Associated Natural Gas, Bio Gas, and Landfill Gas

Processes ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 1568
Author(s):  
Federico Galli ◽  
Jun-Jie Lai ◽  
Jacopo De Tommaso ◽  
Gianluca Pauletto ◽  
Gregory S. Patience
Keyword(s):  
Natural Gas ◽  
Net Present Value ◽  
Landfill Gas ◽  
Labor Cost ◽  
Variable Cost ◽  
Selling Price ◽  
Present Value ◽  
Fischer Tropsch ◽  
Gas To Liquids ◽  
The Impact

Methane is the second highest contributor to the greenhouse effect. Its global warming potential is 37 times that of CO2. Flaring-associated natural gas from remote oil reservoirs is currently the only economical alternative. Gas-to-liquid (GtL) technologies first convert natural gas into syngas, then it into liquids such as methanol, Fischer–Tropsch fuels or dimethyl ether. However, studies on the influence of feedstock composition are sparse, which also poses technical design challenges. Here, we examine the techno-economic analysis of a micro-refinery unit (MRU) that partially oxidizes methane-rich feedstocks and polymerizes the syngas formed via Fischer–Tropsch reaction. We consider three methane-containing waste gases: natural gas, biogas, and landfill gas. The FT fuel selling price is critical for the economy of the unit. A Monte Carlo simulation assesses the influence of the composition on the final product quantity as well as on the capital and operative expenses. The Aspen Plus simulation and Python calculate the net present value and payback time of the MRU for different price scenarios. The CO2 content in biogas and landfill gas limit the CO/H2 ratio to 1.3 and 0.9, respectively, which increases the olefins content of the final product. Compressors are the main source of capital cost while the labor cost represents 20–25% of the variable cost. An analysis of the impact of the plant dimension demonstrated that the higher number represents a favorable business model for this unit. A minimal production of 7,300,000 kg y−1 is required for MRU to have a positive net present value after 10 years when natural gas is the feedstock.

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