Microwave pyrolysis of rice straw to produce biochar as an adsorbent for CO2 capture

Huang, Ya-Chi; Chiueh, Pei-Te; Shih, Chun-Hao; Lo, Shang‐Lien; Sun, Liping; Zhong, Yuan; Qiu, Chunsheng

doi:10.1016/j.energy.2015.02.026

Cited by 168 publications

(45 citation statements)

References 58 publications

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“…To confirm the effect of the effectiveness of specific surface area on methane enrichment compared to zeolite, SAA analysis is also required. In addition, biochar is not sensitive to water vapor [18] compared with natural zeolite so in this study was indicated that the absence of capturing competition between water vapor and carbon dioxide on biochar. Xu, et al [25] also reported that biochar derived from livestock manure are rich in minerals which can facilitate carbon dioxide capture.…”

Section: Biogas Purificationmentioning

confidence: 74%

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Characterization of Natural Zeolite and Chicken Manure Derived Biochar for Carbon Dioxide Adsorption in Biogas

et al. 2018

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Although biogas is clean and environmentally friendly, its existence is often unsustainable, especially in rural area. Consumption of fossil fuel energy still dominates because cheaper, higher in energy efficiency and ready to use than biogas. One of the efforts to make biogas can compete with fossil fuel energy is by increasing calorific value. Reduction of carbon dioxide by adsorption enhances the calorific value that evidenced by methane enrichment. In this study, we investigated the effect three types of combined adsorbent: pure natural zeolite (Z-Z), zeolite-biochar from chicken manure (Z-B1) and zeolite-modified biochar (Z-B2) on methane content. The result showed that adsorption of biogas using Z-Z, Z-B1 and Z-B2 increased methane level with enhancement of 1,36; 28,92; and 11,27% respectively compared before adsorption. To confirm whether these results were influenced by adsorbent’s character or not as consequence adsorbent characterization have been done in this study.

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Section: Biogas Purificationmentioning

confidence: 74%

“…Even it presented some similarities of typical bands. The bands between 3440-3457 cm -1 confirmed vibration of O-H stretching of phenol, alcohol, and carboxylic acid on the surface of biochar [17][18]. The vibration of C=C aromatic stretching was identified at 1400-1500 cm -1 .…”

Section: Fig 1 N 2 Adsorption-desorption Isotherm On Natural Zeolitementioning

confidence: 85%

Characterization of Natural Zeolite and Chicken Manure Derived Biochar for Carbon Dioxide Adsorption in Biogas

et al. 2018

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“…Several attempts have been made to increase the value of sugarcane bagasse through conversion to biochar by pyrolysis (Hugo, 2010;Jeong et al, 2016). Sugarcane bagasse biochar (SCBB) was produced under various pyrolysis conditions (Ding et al, 2014;Cha et al, 2016;Huang et al, 2015;Li et al, 2016) including temperature (ranged from 250 to <900 C) which affects its porosity and specific surface area (SSA), heating facilities (traditional kilns, muffle furnace, or microwave oven), reaction time (ranged from 20 min to 8 h) and atmosphere (oxygen-limited, vacuum or N 2 -saturated atmosphere). Sugarcane bagasse was used either in its raw state (Hugo, 2010;Ding et al, 2014;Jeong et al, 2016), anaerobically digested (Inyang et al, 2010), or subjected to different physical or chemical treatments to enhance its sorption capacity and/or selectivity (Hafshejani et al, 2016;Noraini et al, 2016;Schwantes et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Mg-Modified Sugarcane Bagasse Biochar for Dual Removal of Ammonium and Phosphate Ions from Aqueous Solutions

Saleh

Hedia

2018

Alexandria Science Exchange Journal

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Utilization of agricultural wastes to generate cheap and efficient sorbents to remove contaminants from wastewaters is an up-to-date environmental challenge. In Egypt, sugarcane bagasse is yearly generated as a waste material in huge amounts. The objectives of this study were to investigate the effect of chemical modification on the properties of bagasse biochar generated from local sugarcane bagasse feedstock (SCBF) and assess its efficiency for removal of both ammonium and phosphate ions from artificial aqueous solutions. SCBB and Mg-SCBB biochars were produced through pyrolysis of raw SCBF and MgSO 4 impregnated SCBF, respectively at 500 C and under oxygen-limited condition. FTIR peaks analysis, DEM examination, and some physical and chemical properties revealed that new surface functional groups, meso-and micropores, larger surface area and higher CEC were developed in SCBB and Mg-SCBB compared to SCBF. SCBB and Mg-SCBB showed high affinity to ammonium adsorption from aqueous solutions comparable to Charcoal and Zeolite. Mg-SCBB was the only sorbent capable of removing phosphate from the aqueous. Ammonium and phosphate removal at 1:200 sorbent to solution ratio were higher than those at 1:500 for all sorbents. A slight ammonium volatilization occurred during the adsorption process due to high solution pH. Adsorption kinetics data were best fitted to the pseudo-second-order kinetic equation suggesting intraparticle diffusion controlled adsorption process. Ammonium adsorption isotherms were best fitted to Freundlich model. The calculated Freundlich intensity parameter (n) ranged from 0.478 to 0.894 indicating favorable adsorption of ammonium and phosphate by all sorbents. Mg-SCBB had an adsorption capacity of 2573.9 and 4002.2 mg kg-1 for ammonium and phosphate, respectively. The produced Mg-modified sugarcane bagasse biochar may represent a promising efficient and cheap sorbent for dual remediation of wastewaters contaminated with ammonium and phosphate ions.

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“…However, it is difficult to achieve continuous production due to the complex preparation process, and a high temperature leads to a longer production time. One alternative is to find new methods with both an environmental and continuous simplified process to produce carbons (Huang et al 2015). Porous carbon from tomato waste (TWNC) was obtained by activating the tomato waste (TW) with salt (ZnCl2) (TW/ZnCl2 weight ratio of 1:1), followed by pyrolysis of the impregnated sample at 500 °C for 1 h under a nitrogen atmosphere of 99.99% and a flow rate of 100 mL/min (Güzel et al 2014).…”

Section: Introductionmentioning

confidence: 99%

The Effects of Pre-treatments and Low-temperature Pyrolysis on Surface Properties of Biochar from Sunflower Straw as Adsorption Material

Song¹,

Shi²,

Fu³

et al. 2016

BioResources

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Carbon adsorbent materials that were prepared from sunflower straw by a combination of pre-treatment and low-temperature pyrolysis showed better adsorption compared with untreated carbon. Four different pretreatment agents (steam, alkali (KOH), phosphoric (H3PO4), and salt (ZnCl2)) were analyzed with respect to their effects on the maximum surface area and the micropore area. Samples were measured by thermogravimetric analysis (TGA), X-ray powder diffraction (XRD), scanning electron microscopy (SEM), surface area analysis, and pore size analysis. The surface area, pore volume, and N2-adsorption capacity of the samples were closely correlated with the pre-treating agent. A biochar with a maximum surface area of 877.6 m 2 /g and a micropore area of 792.8 m 2 /g was prepared with phosphoric acid (H3PO4) as the pre-treatment agent at a temperature of 400 °C. The main result of the one-stage pre-treatment procedure was the number of micropores. The two-stage, low-temperature pyrolysis procedure focused on the volume of the pores. Carbonized sunflower straw, with pretreated and lowtemperature pyrolysis procedures, was judged to be a highly effective and economic method to prepare carbon adsorbents.

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Microwave pyrolysis of rice straw to produce biochar as an adsorbent for CO2 capture

Cited by 168 publications

References 58 publications

Characterization of Natural Zeolite and Chicken Manure Derived Biochar for Carbon Dioxide Adsorption in Biogas

Characterization of Natural Zeolite and Chicken Manure Derived Biochar for Carbon Dioxide Adsorption in Biogas

Mg-Modified Sugarcane Bagasse Biochar for Dual Removal of Ammonium and Phosphate Ions from Aqueous Solutions

The Effects of Pre-treatments and Low-temperature Pyrolysis on Surface Properties of Biochar from Sunflower Straw as Adsorption Material

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