International Journal of Energy Research, ( ISI ), Volume (45), No (11), Year (2021-9) , Pages (16362-16382)

Title : ( A highly carbon‐efficient and techno‐economically optimized process for the renewable‐assisted synthesis of gas to liquid fuels, ammonia, and urea products )

Authors: Mohammad Ziaei , Mehdi Panahi , Mohammad Ali Fanaei Shykholeslami , Ahmad Rafiee , Kaveh Khalilpour ,

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Abstract

Carbon dioxide conversion into beneficial products has received very much attention in recent years to decrease industrial CO2 emissions. In this context, integration of gas to liquids (GTL) process with an iron-based Fischer-Tropsch (FT) reactor with ammonia and urea synthesis plants was investigated. The main motivation of the proposed integration is to reuse a released CO2 stream from the GTL process and to enhance the commercial process economy. The required hydrogen for ammonia comes from polymer electrolyte membrane (PEM) electrolyzers running by solar power. Latin hypercube design (LHD) approach was applied to model the profitability and carbon efficiency of the process. Optimization was conducted to maximize the carbon efficiency and profit index of the overall process using the model-based calibration (MBC) toolbox of MATLAB. The results demonstrated that at the optimum case, the proposed integration is capable of producing 48 t/h of urea and also utilizing about 35 t/h of CO2 produced in the GTL process. The results were compared with another configuration in which a cobalt-based FT reactor was integrated with ammonia and urea processes. The results suggest that profitability, carbon efficiency, and urea production of the process configuration with a Co-based FT reactor is higher than the iron-based configuration while the wax production rate of the iron-based configuration is higher than that of the Co-based process. Techno-economic feasibility study of the zero CO2 emission process represents that the carbon efficiency of around 100% could be obtained.

Keywords

carbon efficiency CO2 utilization computer experiment GTL urea zero CO2 emission
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@article{paperid:1085149,
author = {Ziaei, Mohammad and Panahi, Mehdi and Fanaei Shykholeslami, Mohammad Ali and Rafiee, Ahmad and Kaveh Khalilpour},
title = {A highly carbon‐efficient and techno‐economically optimized process for the renewable‐assisted synthesis of gas to liquid fuels, ammonia, and urea products},
journal = {International Journal of Energy Research},
year = {2021},
volume = {45},
number = {11},
month = {September},
issn = {0363-907X},
pages = {16362--16382},
numpages = {20},
keywords = {carbon efficiency CO2 utilization computer experiment GTL urea zero CO2 emission},
}

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%0 Journal Article
%T A highly carbon‐efficient and techno‐economically optimized process for the renewable‐assisted synthesis of gas to liquid fuels, ammonia, and urea products
%A Ziaei, Mohammad
%A Panahi, Mehdi
%A Fanaei Shykholeslami, Mohammad Ali
%A Rafiee, Ahmad
%A Kaveh Khalilpour
%J International Journal of Energy Research
%@ 0363-907X
%D 2021

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