Steam gasification of meat and bone meal in a two-stage fixed-bed reactor system

Light gases were produced from biomass tar gasification using limonite and dolomite as catalysts. Experiments were performed in a fixed bed reactor with the gasification temperatures of 600–800 °C. Limonite gave the obvious effect on the tar gasification, and the light gases of hydrogen and carbon oxides were mainly obtained. Also, the gas yields depended on the catalytic temperature. Hydrogen yields tend to increasing with temperatures from 650 to 800 °C. The reaction equilibrium was changed by dolomite addition in the reactor system; hydrogen gas was doubled with the limonite and dolomite mixture compared to limonite only.

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Preparation of hydrogen-rich gas from waste polyurethane foam by steam gasification and catalytic reforming in a two-stage fixed bed reactor

Journal of Material Cycles and Waste Management ◽

10.1007/s10163-021-01268-7 ◽

2021 ◽

Author(s):

Xiaoya Guo ◽

Na Li ◽

Ting Zhang

Keyword(s):

Polyurethane Foam ◽

Fixed Bed ◽

Steam Gasification ◽

Fixed Bed Reactor ◽

Catalytic Reforming ◽

Two Stage

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Catalytic steam gasification of pig compost for hydrogen-rich gas production in a fixed bed reactor

Bioresource Technology ◽

10.1016/j.biortech.2013.01.092 ◽

2013 ◽

Vol 133 ◽

pp. 127-133 ◽

Cited By ~ 24

Author(s):

Jingbo Wang ◽

Bo Xiao ◽

Shiming Liu ◽

Zhiquan Hu ◽

Piwen He ◽

...

Keyword(s):

Fixed Bed ◽

Gas Production ◽

Steam Gasification ◽

Fixed Bed Reactor

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Steam gasification of selected energy crops in a fixed bed reactor

Renewable Energy ◽

10.1016/j.renene.2009.06.005 ◽

2010 ◽

Vol 35 (2) ◽

pp. 397-404 ◽

Cited By ~ 18

Author(s):

Adam Smoliński ◽

Krzysztof Stańczyk ◽

Natalia Howaniec

Keyword(s):

Fixed Bed ◽

Energy Crops ◽

Steam Gasification ◽

Fixed Bed Reactor

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Recycling of Waste Materials for Stabilizing Ash from Co-Combustion of Municipal Solid Wastes with an Olive By-Product: Soil Leaching Experiments

Soil Systems ◽

10.3390/soilsystems4020034 ◽

2020 ◽

Vol 4 (2) ◽

pp. 34

Author(s):

Despina Vamvuka ◽

Stelios Alexandrakis ◽

George Alevizos ◽

Antonios Stratakis

Keyword(s):

Heavy Metals ◽

Fixed Bed ◽

Major And Trace Elements ◽

Solid Wastes ◽

Waste Materials ◽

The European Union ◽

Meat And Bone Meal ◽

Bone Meal ◽

Municipal Solid Wastes ◽

Lignite Fly Ash

In the context of the current environmental policies of the European Union promoting the recycling and reuse of waste materials, this work aimed at investigating the environmental impact of ashes produced from the co-combustion of municipal solid wastes with olive kernel in a fixed bed unit. Lignite fly ash, silica fume, wheat straw ash, meat and bone meal biochar, and mixtures of them were used as stabilizing ash materials. All solids were characterized by physical, chemical and mineralogical analyses. Column leaching tests of unstabilized and stabilized ash through a quarzitic soil were conducted, simulating field conditions. pH, electrical conductivity, chloride, sulphate and phosphate ions, major and trace elements in the leachates were measured. The results showed that alkaline compounds were partially dissolved in water extracts, increasing their pH and thus decreasing the leachability of heavy metals from the ash. Cr leached from unstabilized ash reached a hazardous level. Upon the stabilization of ash, the concentrations of heavy metals in the extracts were reduced between 9% and 100%, and were below legislation limits for disposal, apart from Cr. The latter was achieved only when meat and bone meal biochar was used as stabilizer. Entrapment of ash elements was assigned to the amorphous silica and to the phosphates of the stabilizing materials, as well as complexed silicates formed during the process.

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