Experimental study on catalytic pyrolysis of biomass over a Ni/Ca-promoted Fe catalyst

Lu, Qi; Li, Wei; Zhang, Xu; Liu, Zi-Liang; Cao, Qiue; Xie, Xiaoguang; Yuan, Shenfu

doi:10.1016/j.fuel.2019.116690

Cited by 89 publications

(29 citation statements)

References 53 publications

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“…The catalytic pyrolysis reactions were carried out in a fixed-bed flow reactor reported in a previous study. 13 After the sample was placed into the reactor，it was heated to the aimed temperature and continued 1 hour, The volatiles released during the heating process of the sample are transported to the ice-water condenser. The liquid product produced by the condensable is tar, and the non-condensable part is collected in the gas bag for further analysis.…”

Section: Pyrolysis Experimentsmentioning

confidence: 99%

“…The liquid production was a mixture of tar and water; details of the analytical methods can be found in our previous work. 13 The quality of char was determined by the weight difference, and the experimental error was limited to ±2%. The gases were analyzed by dual-channel gas chromatography (Agilent 7890B) with thermal conductivity detectors (TCD) and a hydrogen flame ionization detector (FID).…”

Section: Pyrolysis Experimentsmentioning

confidence: 99%

“…Iron is such a metal, and is particularly active in promoting C C and C O bond breakage. 13 The addition of Fe to Ni has been found to be beneficial as the form of Fe-Ni alloy, 14,15 which embraced higher catalytic performance. 16 In addition, the factors controlling the activity of catalyst were the amount of active substance and the dispersion of active phase.…”

Section: Introductionmentioning

confidence: 99%

“…Ca has been a valuable promoter for Fe-Ni catalysts leading to tar removal during biomass pyrolysis. 13 Ni impregnated with natural olivine has improved catalytic activity for tar decomposition 18 due to the activity was strengthened after Ni interacting with Fe and MgO. 14 Li et al reported that Ni/MgO catalyst is efficient to the upgrading of renewable biooil.…”

Section: Introductionmentioning

confidence: 99%

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Study of Fe‐Ni‐Mg catalytic activities for hydrogen‐rich gas production from biomass pyrolysis

Zhang

Yuan

et al. 2020

Int J Energy Res

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We investigate the various roles of MgO in Fe-Ni-Mg catalytic system in the catalytic pyrolysis of pine needle biomass in a fixed bed reactor. And the change of productions was discussed to reveal the various roles of MgO at 750 C. We found that in the presence of MgO, hydrogen content was enhanced. And the variation in the Mg/3 Fe 1 Ni mass ratios indicated that MgO could act as a promoter at 750 C, and a catalyst at Mg/3 Fe 1 Ni ratio of <1, and >1, respectively. Moreover, the impact of temperature and heating rate for biomass pyrolysis with 3 Fe 1 Ni 0.4 Mg catalyst were studied. Firstly, as the temperature changed from 450 C to 750 C, hydrogen increases from 40.70 mL/g to 120.98 mL/g. Secondly, when the heating rate was 10 C/min, the gas yield reached the maximum value of 34.27%. At the same time, the content of hydrogen product was also the maximum, 120.98 mL/g, a possible mechanism of biomass pyrolysis with Fe-Ni-Mg catalytic system is proposed. The surface characteristics of 3 Fe 1 Ni, 3 Fe 1 Ni 0.4 Mg and 3 Fe 1 Ni 4 Mg catalysts were analyzed with XRD, SEM, and TEM. XRD results indicated that Fe-Ni alloy was formed during high temperature, which contributed to the enhancement of hydrogen. These findings manifested that Fe-Ni-Mg catalyst can be used as low-cost catalyst to enhance hydrogen.

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Section: Pyrolysis Experimentsmentioning

confidence: 99%

Section: Pyrolysis Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Study of Fe‐Ni‐Mg catalytic activities for hydrogen‐rich gas production from biomass pyrolysis

Zhang

Yuan

et al. 2020

Int J Energy Res

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“…Several fast pyrolysis studies have been conducted by using different biomasses and catalysts to investigate the effects of different operating conditions on the products distribution and bio-oil quality [7,[17][18][19][20][21][22][23][24]. The feasibility, byproducts, and comprehensive characterization of pearl millet (PM) and napier grass hybrid [25] and the physicochemical, nutritive, and spectral properties of biochar prepared from India's four important agricultural residues including PM [26] have been studied.…”

Section: Introductionmentioning

confidence: 99%

Catalytic fast pyrolysis of Pearl Millet and Sida cordifolia L. to investigate products distribution and bio-oil quality

Laougé

Merdun

2020

Preprint

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Fast pyrolysis is an attractive way of converting abundant biomass resources into valuable products such as bio-oil. Nevertheless, high oxygenated compounds and water content of bio-oil limit its direct use as fuel or chemicals. Catalytic fast pyrolysis (CFP) is able to improve bio-oil properties so that downstream upgrading processes can be economically feasible. In this study five different catalysts such as zeolite socony mobil-5 (ZSM-5), cerium dioxide (CeO2), zirconium dioxide (ZrO2), zinc oxide (ZnO), and sodium carbonate (Na2CO3) were employed due to their potential in enhancing bio-oil properties. CFP of pearl millet (PM) and Sida cordifolia (Sida) was performed to investigate the effects of catalysts on the products distribution and chemical contents of bio-oil. The results showed that bio-oil yield decreased during CFP regardless of catalyst and biomass types. Among all catalysts, CeO2 was found to be the most suitable to produce acids and alkanes from CFP of PM; and acids, ketones, and aromatics from CFP of Sida. The high production of ketones from PM and alkanes from Sida was observed with Na2CO3 catalyst. The ZrO2 catalyst indicated the high aromatics production from PM, whereas alcohols, amines, and others were abundant in bio-oil from CFP of PM using ZSM-5. Overall, PM and Sida can be used to produce fuel or value-added chemicals through CFP.

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Thermal and Catalytic Pyrolysis Process of Neem Seed to Produce Valuable Fuels over RFCC Catalyst: Process Development and Evaluation

2022

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In this research, thermal and catalytic pyrolysis of neem seed as a non-edible feed has been investigated for the production of valuable chemicals including bio-oil, bio-char and bio-gas. The sensitivity analysis of main operating parameters of thermal pyrolysis process including temperature (350-550 °C), reaction time (30-180 min) and heating rate (10-40 °C/min) on the major products yield has been performed and the optimum operating condition to maximize the bio-oil production has been determined. The achieved results indicated that the maximum bio-oil production yield is obtained at temperature of 450 °C. The bio-oil production yield enhances with increasing the heating rate, whereas the process time in the considered range has not significant effect on the bio-oil production yield. Since the main focus of this study was catalytic upgrading of pyrolysis-derived bio-oil to valuable fuels, catalytic pyrolysis of neem seeds over industrial RFCC catalyst has been examined using different catalyst loading in the range of 10-40 wt %. It is inferred that more aromatic compounds will be generated with increasing the RFCC catalyst loading which could be attributed to the presence of Al 2 O 3 and zeolite in the catalyst structure. Also, the bio-oil and bio-gas production yields via catalytic pyrolysis process over 20 wt. % RFCC catalyst enhanced from 44.3 % to 49.5 % and 22.4 % to 27 % with increasing temperature from 350 and 450 °C, respectively.

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Experimental study on catalytic pyrolysis of biomass over a Ni/Ca-promoted Fe catalyst

Cited by 89 publications

References 53 publications

Study of Fe‐Ni‐Mg catalytic activities for hydrogen‐rich gas production from biomass pyrolysis

Study of Fe‐Ni‐Mg catalytic activities for hydrogen‐rich gas production from biomass pyrolysis

Catalytic fast pyrolysis of Pearl Millet and Sida cordifolia L. to investigate products distribution and bio-oil quality

Thermal and Catalytic Pyrolysis Process of Neem Seed to Produce Valuable Fuels over RFCC Catalyst: Process Development and Evaluation

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