Study of bio-oil and bio-char production from algae by slow pyrolysis

Scenedesmus-based treatment of nitrogen and phosphorus from effluent of anaerobic digester and bio-oil production

“…Assuming 10% (w/w) of oil feedstock is converted into glycerol, 180 kg y À1 of glycerol is produced (Yang et al, 2012). Likewise, 6882 kg y À1 of biochar, 2220 kg y À1 of nitrogen fertilizer, and 222 kg y À1 of phosphorus fertilizer can be produced alongside (Chaiwong et al, 2012;Grobbelaar, 2004). This avenue is particularly noteworthy, as nitrogen fertilizer production is highly energy-consuming, and phosphorus is a depleting resource.…”

Effect of combined slow pyrolysis and steam gasification of sugarcane bagasse on hydrogen generation

“…In addition, the hybrid process offers synergic benefits of both the processes facilitating efficient gasification reactions, better conversion efficiency into gas, reducing tar generation and offering more H 2 yield. Numerous studies are available on individual slow pyrolysis and steam gasification [20][21][22][23]. In fact, investigations of steam gasification of pyrolyzed char are also numerous [24,25].…”

Retrofitting hetrotrophically cultivated algae biomass as pyrolytic feedstock for biogas, bio-char and bio-oil production encompassing biorefinery

“…There exists a relationship between the chemical structure of solid bio-char and the composition of released gases at different temperatures (Singh et al, 2014). Algal bio-char has a lower carbon content, surface area and cation exchange capacity compared with the lignocellulose bio-char but has a higher pH and gives a higher content of nitrogen, ash and inorganic elements (Chaiwong et al, 2012). The addition of bio-char to soils enhances microbial activity.…”