The effect of high temperature on syngas production by immediate pyrolysis of wet sewage sludge with sawdust

Yang, Yao; Zhu, Jinjiao; Zhu, Guangkuo; Yang, Li; Zhu, Yuezhao

doi:10.1007/s10973-018-7143-9

Cited by 13 publications

(6 citation statements)

References 48 publications

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“…The important reactions that took place during catalytic gasification of wet sludge and wheat straw were summarized as follows (Hu et al 2015;Yang et al 2018 Figure 6 shows the processes of biomass catalytic gasification. First, the drying process of the wet sample took place at a high temperature, which formed in-situ steam around the sample (Eq.…”

Section: Application and Analysis Of Ni/zr-mof Catalyst In Biomass Gasificationmentioning

confidence: 99%

Hydrogen-rich syngas production via catalytic gasification of biomass using Ni/Zr-MOF catalyst

Shang

Qin

Lan

et al. 2020

BioRes

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A Ni/Zr-MOF catalyst supported on Zr-metal organic framework (Zr-MOF) was prepared by a homogeneous precipitation method and was used in the co-gasification of wet sludge and straw. The Ni/Zr-MOF catalyst was characterized via thermogravimetric, X-ray diffraction, scanning electron microscopy, energy dispersive spectrometry, and Brunauer-Emmett-Teller analyses. The experimental results illustrated that the Zr-MOF crystals were an octahedral structure with a specific surface area of 806 m2/g, and had mesoporous structure. Nickel was uniformly dispersed on the surface of the catalyst, and most of the Ni/Zr-MOF crystals maintained an octahedral morphology. Compared with non-catalyst biomass gasification, the H2 yield increased from 0.39 mol/kg to 11.87 mol/kg using the Ni/Zr-MOF catalyst at 500 °C. After 10 instances of reuse, the H2 yield was still as high as 10.11 mol/kg. The Ni/Zr-MOF catalyst exhibited high catalytic activity and stability for biomass gasification at low-temperature.

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Section: Application and Analysis Of Ni/zr-mof Catalyst In Biomass Gasificationmentioning

confidence: 99%

Hydrogen-rich syngas production via catalytic gasification of biomass using Ni/Zr-MOF catalyst

Shang

Qin

Lan

et al. 2020

BioRes

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“…The contents of H2 and CO increased gradually with the increase of reactor temperature while the contents of CH4 and CO2 decreased. Yang et al (2018) have studied the co-gasification of wet sludge and sawdust and found the same trend, which was attributed to higher temperature providing more favorable conditions for thermal cracking of hydrocarbon. Taking Fig.…”

Section: Influence Of Reactor Temperature On Gas Compositionmentioning

confidence: 70%

Hydrogen-rich syngas production via catalytic gasification of sewage sludge and wheat straw using corn stalk char-supported catalysts

Shang

Guo

Lan

et al. 2020

BioRes

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The co-gasification of wheat straw and wet sewage sludge for hydrogen-rich gas production was investigated in a fixed bed reactor with corn stalk char (CSC)-supported catalysts. The Ni/CSC, Ni-Fe/CSC, and Ni-Fe-La/CSC catalysts were characterized via ultimate analysis, X-ray fluorescence, thermogravimetric, X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, Brunauer-Emmett-Teller, and Fourier transform infrared spectroscopy analyses. A series of experiments were performed to explore the effects of reactor temperature, catalyst type, moisture content of wet sludge, and catalyst recycling performance on the composition and yield of gasification gases. The experiments demonstrated that the nickel-iron alloy (Fe0.64Ni0.36) was detected in the Ni-Fe-La/CSC catalyst, and the Ni-Fe-La/CSC catalyst showed much higher hydrogen production compared with the Ni/CSC and Ni-Fe/CSC catalysts. Furthermore, La2O3 effectively maintained the catalytic performance of the catalyst by relieving carbon deposition. Compared with non-catalyst biomass gasification, H2 yield increased from 3.80 mol/kg to 11.96 mol/kg using Ni-Fe-La/CSC catalyst at 600 °C. The newly developed tri-metallic Ni-Fe-La/CSC catalyst exhibited high catalytic activity for biomass gasification at low temperature.

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“…Upon review, the recent studies on the pyrolysis process integrated with MBT support the idea that many researchers have employed this technology for converting biomass to syngas. − The integrated pyrolysis technology with the moving bed configuration has eliminated the drying step, which is one of the main steps to obtain useful energy from biomass . The effects of parameters including temperature, , type of the reactor, the heat carrier type, etc. have been investigated so far, while studies are ongoing in this area.…”

Section: Experimental Studiesmentioning

confidence: 99%

“…148−152 The integrated pyrolysis technology with the moving bed configuration has eliminated the drying step, which is one of the main steps to obtain useful energy from biomass. 151 The effects of parameters including temperature, 148,150 type of the reactor, 149 the heat carrier type, 151 etc. have been investigated so far, while studies are ongoing in this area.…”

Section: Introductionmentioning

confidence: 99%

Moving Bed Reactors: Challenges and Progress of Experimental and Theoretical Studies in a Century of Research

Shirzad

Karimi

Silva

et al. 2019

Ind. Eng. Chem. Res.

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Moving bed reactors (MBRs) have been proposed as a sign of significant progress in the reaction engineering area for performance improving and energy saving. Since their advent in 1890, the MBRs have attracted a wide acceptance in different industries, while they were first developed for the drying industries. The progress that this technology has made during its evolution led to the introduction of these reactors as a pioneer strategy in other industries including petroleum, petrochemical, pyrolysis, and biomass industries. In the traditional reaction systems, the process performance decreases during the operational conditions, while MBRs have obviated this drawback by having an all-around permanent acceptable efficiency. In this context, the present work provides an overview on the evolution of MBRs by investigating the main experimental and theoretical studies. In this way, the experimental studies have typically taken into account operational conditions and production rates of different products, while in the theoretical research, modeling, and simulation of conventional processes, the evaluation of novel configurations and the optimization techniques have been investigated. In the end, some suggestions are proposed to modify the traditional MBRs as helpful ideas for further studies.

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The effect of high temperature on syngas production by immediate pyrolysis of wet sewage sludge with sawdust

Cited by 13 publications

References 48 publications

Hydrogen-rich syngas production via catalytic gasification of biomass using Ni/Zr-MOF catalyst

Hydrogen-rich syngas production via catalytic gasification of biomass using Ni/Zr-MOF catalyst

Hydrogen-rich syngas production via catalytic gasification of sewage sludge and wheat straw using corn stalk char-supported catalysts

Moving Bed Reactors: Challenges and Progress of Experimental and Theoretical Studies in a Century of Research

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