Volume 42, Issue 5 pp. 1153-1168
Research Article

Biomass Gasification Integrated with Chemical Looping System for Hydrogen and Power. Coproduction Process – Thermodynamic and Techno-Economic Assessment

Peng Jiang

Peng Jiang

Khalifa University of Science and Technology, Department of Chemical Engineering, The Petroleum Institute, P.O. Box 2533, Abu Dhabi, United Arab Emirates

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Abdallah S. Berrouk

Corresponding Author

Abdallah S. Berrouk

Khalifa University of Science and Technology, Department of Chemical Engineering, The Petroleum Institute, P.O. Box 2533, Abu Dhabi, United Arab Emirates

Khalifa University of Science and Technology, Department of Mechanical Engineering, The Petroleum Institute, P.O. Box 2533, Abu Dhabi, United Arab Emirates

Khalifa University of Science and Technology, Center for Catalysis and Separation, P.O. Box 127788, Abu Dhabi, United Arab Emirates

Correspondence: ([email protected]), Khalifa University of Science and Technology, Department of Chemical Engineering, The Petroleum Institute, P.O. Box 2533, Abu Dhabi, United Arab Emirates.Search for more papers by this author
Satyadileep Dara

Satyadileep Dara

Khalifa University of Science and Technology, Department of Chemical Engineering, The Petroleum Institute, P.O. Box 2533, Abu Dhabi, United Arab Emirates

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First published: 14 March 2019
Citations: 16

Abstract

Three biomass gasification-based hydrogen and power coproduction processes are modeled with Aspen Plus. Case 1 is the conventional biomass gasification coupled with a shift reactor, cases 2 and 3 involve integration of biomass gasification with iron-based and calcium-based chemical looping systems. The effects of important process parameters on the performance indicators such as hydrogen yield and efficiencies are evaluated by sensitivity analyses. These parameters include gasification temperature, molar ratios of steam to biomass in the gasifier, Fe2O3 to syngas in the fuel reactor, Fe/FeO to steam in the steam reactor, CaO to CO, and steam to CO in the carbonator. The energy and exergy balance distributions for the above three cases are comprehensively discussed and compared. Furthermore, techno-economic assessments are performed to evaluate the three cases in terms of capital cost, operating cost, and leveled cost of energy.

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