Biomass pyrolysis toward hydrocarbonization. Influence on subsequent steam gasification processes

Álvarez-Murillo, A.; Ledesma, B.; Román, S.; Sabio, E.; Gañán, J.

doi:10.1016/j.jaap.2015.02.030

Cited by 35 publications

(23 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The literature shows that this value is similar or higher [23,36] than that provided by previous studies on the steam gasification of biomass sources. Taking into account that biomass feedstock needs previous grinding and drying conditioning processing, the interest of the present work can be highlighted, since the glycerin here is used just as it is generated in the biodiesel production process.…”

Section: Influence Of Water/glycerin Ratiosupporting

confidence: 76%

“…Moreover, the reactor temperature was varied in the range 600-900˝C. The runs were made once; the suitability of the Energies 2015, 8,[12765][12766][12767][12768][12769][12770][12771][12772][12773][12774][12775] procedure can be supported by previous studies on pyrolysis and gasification made by the research group [21][22][23][24][25].…”

Section: Steam Gasification Experimentsmentioning

confidence: 99%

See 1 more Smart Citation

Glycerin, a Biodiesel By-Product with Potentiality to Produce Hydrogen by Steam Gasification

et al. 2015

View full text Add to dashboard Cite

This work investigates the possibility of providing a use to one of the major byproducts generated during biodiesel processing: glycerin. In particular, the steam gasification of water/glycerin mixtures is studied, analysing the influence of temperature (range 600-900˝C), inlet flow rate (0.5-3 mL¨min´1) and water/glycerin ratio (6-12 wt/wt, %) on the gas composition (H 2 , CO, CH 4 and CO 2 ), higher heating value, and generated power. In general, a more diluted water/glycerin mixture is more interesting in order to provide a higher fraction of hydrogen in the gas produced, although it also involves a decrease in the power obtained. Higher temperatures cause a greater contribution of water gas and water gas shift reactions in all cases, thus increasing the H 2 proportion of the gas. Finally, a greater inlet flow rate increases gas production, but decreases the hydrogen proportion.

show abstract

Section: Influence Of Water/glycerin Ratiosupporting

confidence: 76%

Section: Steam Gasification Experimentsmentioning

confidence: 99%

Glycerin, a Biodiesel By-Product with Potentiality to Produce Hydrogen by Steam Gasification

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Therefore, one promising alternative of conventional steam gasification of sewage sludge for hydrogen production is the steam gasification of the hydrochar derived from sewage sludge via hydrothermal carbonization pretreatment. Alvarez-Murillo et al [22] investigated the steam gasification characteristics of hydrochar derived from HTC of olive stone as a representative of lignocellulosic biomass. It was observed that hydrochar of olive stone provided improved gasification characteristics.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen-rich gas production by steam gasification of hydrochar derived from sewage sludge

Gai

Guo

et al. 2016

International Journal of Hydrogen Energy

150

View full text Add to dashboard Cite

Steam Alkali catalyst Hydrogen Hydrothermal carbonization a b s t r a c tHydrothermal carbonization is an effective pretreatment for further thermal conversion of high moisture biomass without a high cost of a dehydration process. The current paper concerns the properties of hydrochar derived from hydrothermal carbonization of sewage sludge, and the feasibility of steam gasification of hydrochar for hydrogen-rich gas production was investigated. Sewage sludge derived hydrochar was characterized using scanning electron microscopy, Fourier transform infrared spectroscopy, and inductively coupled plasma atomic emission spectroscopy to evaluate its feasibility for gasification application. The effect of reaction temperature, steam to biomass mass ratio, and addition of alkali catalysts on steam gasification characteristics of raw sewage sludge and corresponding hydrochar were evaluated, in terms of major composition of the produced gas, gas yield, gasification efficiency and energy density. The results showed that sewage sludge derived hydrochar was rich in hydrophilic functional groups and increased Fe, Ni, alkali and alkaline earth metals (i.e. K, Na, Ca, Mg), resulting in a higher hydrogen yield and energy efficiency than direct steam gasification of sewage sludge under identical conditions. In addition, hydrogen-rich gas production was also favored with the presence of alkali catalysts, especially for the hydrochar. The present study demonstrates that hydrothermal carbonization provides an effective pretreatment of sewage sludge for production of hydrogen-rich gas via steam gasification.

show abstract

“…As one of the typical thermochemical pretreatment, low temperature pyrolysis (LTP) [5,6] converts biomass into pyrochar under an inert atmosphere with low heating rate. The pyrochar has improved physical and chemical characteristics, and it has been extensively used for soil amendment, wastewater pollution remediation, carbon sequestration and bioenergy production [7].…”

Section: Introductionmentioning

confidence: 99%

Gasification characteristics of hydrochar and pyrochar derived from sewage sludge

Gai

Chen

et al. 2016

Energy

View full text Add to dashboard Cite

Biomass pyrolysis toward hydrocarbonization. Influence on subsequent steam gasification processes

Cited by 35 publications

References 15 publications

Glycerin, a Biodiesel By-Product with Potentiality to Produce Hydrogen by Steam Gasification

Glycerin, a Biodiesel By-Product with Potentiality to Produce Hydrogen by Steam Gasification

Hydrogen-rich gas production by steam gasification of hydrochar derived from sewage sludge

Gasification characteristics of hydrochar and pyrochar derived from sewage sludge

Contact Info

Product

Resources

About