Fluid dynamics analysis and pyrolysis of brewer’s spent grain in a spouted bed reactor
Source abstract
Abstract
Abstract Brewer’s spent grain (BSG) is a large-scale agroindustrial waste that could be more efficiently utilized. This waste is composed of lignocellulosic material and so may serve as a good source of biomass for thermochemical conversion. The present study investigated the fluid dynamics behavior of mixtures of sand and BSG in a spouted bed to assess the viability of the thermochemical conversion of this biomass via fast pyrolysis. Fluid dynamics analyses were performed while varying the mass fraction of BSG (6–80%) and the static bed height (6.6–13.4 cm). Empirical equations for predicting the minimum spouting conditions and the mixing index were obtained using a regression technique, and the selected fluid dynamics parameters were employed in the spouted bed pyrolysis. The bio-oil resulting from this process was rich in phenolic compounds, various nitrogenated compounds (representing precursors for pharmaceuticals) and long-chain hydrocarbons. The products obtained from the analytical and spouted bed pyrolysis processes were also compared.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Thermochemical Biomass Conversion Processes · Granular flow and fluidized beds · Biofuel production and bioconversion
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (42)
Show source-provided references
1. Pyrolysis of sawdust in a conical spouted bed reactor. Yields and product composition10.1021/ie990309v ↗
2. Sewage sludge valorization by flash pyrolysis in a conical spouted bed reactor10.1016/j.cej.2015.03.047 ↗
3. Bio-oil production from rice husk fast pyrolysis in a conical spouted bed reactor10.1016/j.fuel.2014.02.074 ↗
4. Flash pyrolysis of forestry residues from the Portuguese Central Inland Region within the framework of the BioREFINA-Ter project10.1016/j.biortech.2012.11.114 ↗
5. Fast pyrolysis of eucalyptus waste in a conical spouted bed reactor10.1016/j.biortech.2015.07.030 ↗
6. Influence of temperature on biomass pyrolysis in a conical spouted bed reactor10.1016/j.resconrec.2011.04.002 ↗
7. Flow regimes in wet conical spouted beds using glass bead mixtures10.1016/j.partic.2008.01.001 ↗
8. Products distribution and gas release in pyrolysis of thermally thick biomass residues samples10.1016/j.jaap.2006.07.002 ↗
9. Fast pyrolysis of sweet sorghum bagasse in a fluidized bed reactor: Product characterization and comparison with vapors generated in analytical pyrolysis10.1016/j.energy.2017.05.058 ↗
10. Thermogravimetric analysis and analytical pyrolysis of a variety of lignocellulosic sorghum10.1016/j.cherd.2014.11.010 ↗
11. Segregation of particulate solids: Experiments and DEM simulations10.1016/j.partic.2013.04.005 ↗
12. Spouting of biomass particles: A review10.1016/j.biortech.2007.04.048 ↗
13. Mechanical Extraction of natural dye from Bixa orellanna seeds in spouted bed10.1016/j.indcrop.2012.12.052 ↗
14. Fluid-dynamics evaluation in a conical spouted bed and characterization of foxtail millet seeds10.1016/j.partic.2015.01.009 ↗
15. Linking pyrolysis and anaerobic digestion (Py-AD) for the conversion of lignocellulosic biomass10.1016/j.copbio.2016.02.004 ↗
16. Sand attrition in conical spouted beds10.1016/j.partic.2012.02.002 ↗
17. Investigation of in situ and ex situ catalytic pyrolysis of miscanthus×giganteus using a PyGC–MS microsystem and comparison with a bench-scale spouted-bed reactor10.1016/j.biortech.2015.04.129 ↗
18. Biochar from anaerobically digested sugarcane bagasse10.1016/j.biortech.2010.06.088 ↗
19. A review on bio-oil production from biomass by using pyrolysis method10.1016/j.rser.2012.05.039 ↗
20. Mixing and segregation of solid particles in a conical spouted bed: Effect of particle size and density10.1016/j.partic.2016.06.006 ↗
21. Particle segregation in spouted beds10.1002/cjce.5450610309 ↗
22. Performance of a conical spouted bed pilot plant for bio-oil production by poplar flash pyrolysis10.1016/j.fuproc.2015.03.011 ↗
23. High photocatalytic efficiency of spouting reactor compared with fluidized bed with top irradiation source10.1016/j.partic.2016.09.011 ↗
24. An overview: Recycling of solid barley waste generated as a by-product in distillery and brewery10.1016/j.wasman.2017.02.018 ↗
25. Design and operation of a catalytic polymerization reactor in a dilute spouted bed regime10.1021/ie960616q ↗
26. Fast pyrolysis of soybean hulls: Analysis of bio-oil produced in a fluidized bed reactor and of vapor obtained in analytical pyrolysis10.1007/s10973-015-4600-6 ↗
27. [TC2015] Fast pyrolysis characteristics of biomass in a conical spouted bed reactor10.1002/ep.12476 ↗
28. Understanding the fast pyrolysis of lignin10.1002/cssc.201100133 ↗
29. Distinguishing primary and secondary reactions of cellulose pyrolysis10.1016/j.biortech.2011.02.018 ↗
30. Values for particle-scale properties of biomass briquettes made from agroforestry residues10.1016/j.partic.2013.05.007 ↗
31. Investigation of mixing behaviors in a spouted bed with different density particles using discrete element method10.1016/j.powtec.2012.02.003 ↗
32. The use of nonlinearity measures to discriminate the equilibrium moisture equations for Bixa orellana seeds10.1016/j.jfoodeng.2004.02.040 ↗
33. Secondary reactions of levoglucosan and char in the fast pyrolysis of cellulose10.1002/ep.11633 ↗
34. Minimum spouting velocity for conical spouted beds of vegetable waste biomasses10.1016/j.jtice.2015.11.020 ↗
35. Fluid dynamics of a sand-biomass mixture in a spouted-bed reactor for fast pyrolysis10.1002/ceat.201300356 ↗
36. Sensitivity analysis applied to independent parallel reaction model for pyrolysis of bagasse10.1016/j.cherd.2012.04.007 ↗
37. Spouting of bidisperse mixture of particles: A CFD and experimental study10.1080/07373937.2012.684735 ↗
38. An overview on fast pyrolysis of the main constituents in lignocellulosic biomass to valued-added chemicals: Structures, pathways and interactions10.1016/j.rser.2015.06.054 ↗
39. Statista. (2017). Beer production worldwide from 1998 to 2015. Statista GmbH, Hamburg, Germany. Retrieved July 20, 2017, from https://www.statista.com/statistics/270275/worldwide-beer-production/ International Iron and Steel Institute.
40. The recycling of brewer’s processing by-product into ready-to-eat snacks using extrusion technology10.1016/j.jcs.2007.05.016 ↗
41. Effects of temperature and particle size on biomass torrefaction in a slot-rectangular spouted bed reactor10.1016/j.biortech.2017.07.097 ↗
42. Fluid dynamic analysis for pyrolysis of macadamia shell in a conical spouted bed10.1016/j.powtec.2016.05.034 ↗