Techno-economic analysis of biofuel production via bio-oil zeolite upgrading: An evaluation of two catalyst regeneration systems

Biofuels have been identified as a mid-term greenhouse gas (GHG) emissions abatement solution for decarbonising the transport sector. This study examines the techno-economic analysis of biofuel production via biomass fast pyrolysis and subsequent bio-oil upgrading via zeolite cracking. The aim of this study is to compare the techno-economic feasibility of two conceptual catalyst regeneration configurations for the zeolite cracking process: (i) a two-stage regenerator operating sequentially in partial and complete combustion modes (P-2RG) and (ii) a single stage regenerator operating in complete combustion mode coupled with a catalyst cooler (P-1RGC). The designs were implemented in Aspen Plus® based on a hypothetical 72 t/day pine wood fast pyrolysis and zeolite cracking plant and compared in terms of energy efficiency and profitability. The energy efficiencies of P-2RG and P-1RGC were estimated at 54% and 52%, respectively with corresponding minimum fuel selling prices (MFSPs) of £7.48/GGE and £7.20/GGE. Sensitivity analysis revealed that the MFSPs of both designs are mainly sensitive to variations in fuel yield, operating cost and income tax. Furthermore, uncertainty analysis indicated that the likely range of the MFSPs of P-1RGC (£5.81/GGE − £11.63/GGE) at 95% probability was more economically favourable compared with P-2RG, along with a penalty of 2% reduction in energy efficiency. The results provide evidence to support the economic viability of biofuel production via zeolite cracking of pyrolysis-derived bio-oil.

[1]  Scientific financial management : advances in intelligence capabilities for corporate valuation and risk assessment , 2000 .

[2]  Yihua Li,et al.  Mild catalytic pyrolysis of biomass for production of transportation fuels: a techno-economic analysis , 2014 .

[3]  Michael Taylor,et al.  An overview of second generation biofuel technologies. , 2010, Bioresource technology.

[4]  N. Bakhshi,et al.  Catalytic conversion of wood derived bio-oil to fuels and chemicals , 1992 .

[5]  Wolter Prins,et al.  Biomass Pyrolysis in a Fluidized Bed Reactor. Part 2: Experimental Validation of Model Results , 2005 .

[6]  Robert C. Brown,et al.  Techno-economic analysis of transportation fuels from defatted microalgae via hydrothermal liquefaction and hydroprocessing , 2015 .

[7]  Robert L. McCormick,et al.  A perspective on oxygenated species in the refinery integration of pyrolysis oil , 2014 .

[8]  B. Shanks,et al.  Manipulation of chemical species in bio-oil using in situ catalytic fast pyrolysis in both a bench-scale fluidized bed pyrolyzer and micropyrolyzer , 2015 .

[9]  Johan E. Hustad,et al.  Pyrolysis of biomass in the presence of Al-MCM-41 type catalysts , 2005 .

[10]  N. Bakhshi,et al.  Catalytic upgrading of fast pyrolysis oil over hzsm-5 , 1993 .

[11]  Sai Gu,et al.  Heat integration for bio-oil hydroprocessing coupled with aqueous phase steam reforming , 2016 .

[12]  Tiziano Faravelli,et al.  Chemical Kinetics of Biomass Pyrolysis , 2008 .

[13]  Daren E. Daugaard,et al.  Techno-Economic Analysis of Biomass Fast Pyrolysis to Transportation Fuels , 2010 .

[14]  Paul T. Williams,et al.  Comparison of products from the pyrolysis and catalytic pyrolysis of rice husks , 2000 .

[15]  Yu-Ting Cheng,et al.  Production of green aromatics and olefins by catalytic fast pyrolysis of wood sawdust , 2011 .

[16]  Edward Furimsky,et al.  Hydroprocessing challenges in biofuels production , 2013 .

[17]  Abul Kalam Hossain,et al.  Pyrolysis liquids and gases as alternative fuels in internal combustion engines: a review , 2013 .

[18]  Douglas C. Elliott,et al.  Historical Developments in Hydroprocessing Bio-oils , 2007 .

[19]  A. Boateng,et al.  Screening heterogeneous catalysts for the pyrolysis of lignin , 2009 .

[20]  Rayford G. Anthony,et al.  Kinetic studies of upgrading pine pyrolytic oil by hydrotreatment , 1988 .

[21]  F. L. Mendes,et al.  Co-processing raw bio-oil and gasoil in an FCC Unit , 2015 .

[22]  Prasant Kumar Rout,et al.  Production of first and second generation biofuels: A comprehensive review , 2010 .

[23]  Abolghasem Shahbazi,et al.  Bio-oil production and upgrading research: A review , 2012 .

[24]  Shun Tan,et al.  Recent progress of catalytic pyrolysis of biomass by HZSM-5 , 2013 .

[25]  Peter Arendt Jensen,et al.  A review of catalytic upgrading of bio-oil to engine fuels , 2011 .

[26]  A. Bridgwater,et al.  Overview of Applications of Biomass Fast Pyrolysis Oil , 2004 .

[27]  Robert C. Brown,et al.  Catalytic fast pyrolysis of duckweed: effects of pyrolysis parameters and optimization of aromatic production. , 2015 .

[28]  A. Bridgwater.  Review of fast pyrolysis of biomass and product upgrading , 2012 .

[29]  R. Xiao,et al.  Comparison of non-catalytic and catalytic fast pyrolysis of corncob in a fluidized bed reactor. , 2009, Bioresource technology.

[30]  N. Nakicenovic,et al.  Climate change 2007: Mitigation. Contribution of Working Group III to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Summary for Policymakers. , 2007 .

[31]  N. Bakhshi,et al.  Catalytic conversion of a biofuel to hydrocarbons: effect of mixtures of HZSM-5 and silica-alumina catalysts on product distribution , 1996 .

[32]  Tristan R. Brown,et al.  Techno-economic analysis of two bio-oil upgrading pathways , 2013 .

[33]  Mobolaji Shemfe,et al.  Techno-economic performance analysis of biofuel production and miniature electric power generation from biomass fast pyrolysis and bio-oil upgrading , 2015 .

[34]  N. Bakhshi,et al.  Production of hydrocarbons by catalytic upgrading of a fast pyrolysis bio-oil. Part II: Comparative catalyst performance and reaction pathways , 1995 .

[35]  Anthony V. Bridgwater,et al.  Fast pyrolysis of cassava rhizome in the presence of catalysts , 2008 .

[36]  Qiang Lu,et al.  Catalytic upgrading of biomass fast pyrolysis vapors with nano metal oxides: an analytical Py-GC/MS Study. , 2010 .

[37]  Susanne B. Jones,et al.  Techno-economic and uncertainty analysis of in situ and ex situ fast pyrolysis for biofuel production. , 2015, Bioresource technology.

[38]  J. Gary,et al.  Petroleum Refining: Technology and Economics , 1975 .