scholarly journals Enhancement of Hydrogen Production by Combining a Blend Ratio for Two Types of Algal Waste Biomass and Reducing Casamino Acids Supplementation By Clostridium butyricum RAK25832

2018 ◽  
Vol 4 (1) ◽  
Keyword(s):  
Hydrogen Production ◽  
Clostridium Butyricum ◽  
Waste Biomass ◽  
Blend Ratio ◽  
Casamino Acids

Identification of factors that accelerate hydrogen production by Clostridium butyricum RAK25832 using casamino acids as a nitrogen source

2018 ◽  
Vol 43 (10) ◽  
pp. 5300-5313 ◽  
Author(s):  
Shahira Said Aly ◽  
Tsuyoshi Imai ◽  
Mohamed Salah Hassouna ◽  
Diem-Mai Kim Nguyen ◽  
Takaya Higuchi ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Nitrogen Source ◽  
Clostridium Butyricum ◽  
Casamino Acids

Enrichment of hydrogen production from fruit waste biomass using ozonation assisted with citric acid

2021 ◽  
pp. 0734242X2110103
Author(s):  
Anbazhagan Sethupathy ◽  
Pushkar Kumar Pathak ◽  
Palani Sivashanmugam ◽  
Chelliah Arun ◽  
Jayakumar Rajesh banu ◽  
...  
Keyword(s):  
Citric Acid ◽  
Hydrogen Production ◽  
Suspended Solid ◽  
Net Energy ◽  
Waste Biomass ◽  
Acid Pretreatment ◽  
Disintegration Time ◽  
Fruit Waste ◽  
The Impact ◽  
Acid Dosage

In this study, the impact of ozonation abetted with the citric acid pretreatment (OZCAP) method on fruit waste was investigated for ameliorating hydrogen production. Initially, the ozonation pretreatment (OZP) method was performed by varying ozone (O3) dosage and disintegration time. At optimized conditions (O3 dosage (0.04 g/g suspended solid; SS) and disintegration time (40 minutes)), 17.6% of liquefied organics emancipate rate (LER) and 13.5% of SS reduction were perceived. Further augmenting LER of fruit waste, OZCAP method was proceeded by varying citric acid dosage and disintegration time at an optimized OZP dosage (0.04 g/g SS). A higher LER (24.4%) and SS reduction (19%) were described at an optimal citric acid dosage (0.03 g/g SS) and disintegration time (20 minutes). Then, the hydrogen production potential of OZCAP, OZP and raw fruit waste were evaluated in which OZCAP method exhibited a higher cumulative hydrogen production (30 mL/g volatile solids). Energy valuation reveals that OZCAP method exhibited a net energy of 3.7 kWh/kg of fruit waste.

Gasification of waste biomass for hydrogen production: Effects of pyrolysis parameters

2019 ◽  
Vol 143 ◽  
pp. 112-120 ◽  
Author(s):  
Phuet Prasertcharoensuk ◽  
Steve J. Bull ◽  
Anh N. Phan
Keyword(s):  
Hydrogen Production ◽  
Waste Biomass ◽  
Production Effects

Gasification and Hydrogen Production from Waste Biomass with High Pressure Superheated Steam

2011 ◽  
Vol 222 ◽  
pp. 305-308 ◽  
Author(s):  
Idzumi Okajima ◽  
Takeshi Sako
Keyword(s):  
High Pressure ◽  
Hydrogen Production ◽  
Critical Pressure ◽  
Superheated Steam ◽  
Hydrogen Gas ◽  
Molar Ratio ◽  
Paper Sludge ◽  
Waste Biomass ◽  
Pressure Time ◽  
Decomposition Efficiency

High pressure superheated steam above the critical temperature (374oC) and below the critical pressure (22.1MPa) of water was used to produce hydrogen gas from waste biomass efficiently. The targets are large amount of waste biomass such as livestock excrement and paper sludge. We investigated the effects of reaction temperature, pressure, time, catalyst and molar ratio of water to carbon in biomass on the decomposition efficiency of waste biomass and the productivity of hydrogen. Almost 100% of the decomposition efficiency and 1350-1550cm3 of hydrogen production per gram of dry biomass were realized in the presence of KOH catalyst at 700oC, 10MPa, 20min and 20 of molar ratio of water to carbon in biomass.

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