Preparation and characterization of mesoporous activated carbon from waste tires

Ariyadejwanich, P.; Tanthapanichakoon, Wiwut; Nakagawa, Kyuya; Mukai, Shin R.; Tamon, Hajime

doi:10.1016/s0008-6223(02)00267-1

Cited by 232 publications

(128 citation statements)

References 21 publications

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“…The total volume of the pores (p/p 0 ¼ 0.98) rose from 0.44 cm 3 /g in the initial TC to 0.53 cm 3 /g in the sample demineralized with the HNO 3 /H 2 SO 4 treatment, and to 0.46 cm 3 /g with the HNO 3 / H 2 O treatment. In agreement with that indicated by Ariyadejwanich et al (2003), acidic demineralization led to a certain redistribution of the pore sizes by encouraging mesoporosity: in the initial TC the volume of mesopores (2-50 nm) was 0.13 cm …”

Section: Characterization Of the Demineralized Charssupporting

confidence: 88%

Preparation and characterization of activated carbon from the char produced in the thermolysis of granulated scrap tyres

López

Centeno

Rodríguez

et al. 2013

Journal of the Air & Waste Management Association

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The char produced in the thermolysis of granulated scrap tyres has few market outlets, reducing the economic viability of the thermolytic process. This paper reports the potential of this char as a low-cost precursor of porous carbons. The tyre-derived char was demineralized in either alkaline or acidic media to reduce its ash, zinc, sulfur, and silica contents. The lowest impurity content was achieved with an HNO 3 /H 2 O treatment. The resulting demineralized char was then subjected to activation by KOH or CO 2 . The Brunauer-Emmett-Teller (BET)-specific surface area of the activated carbon produced by the KOH treatment was 242 m 2 /g, whereas that of the CO 2 -activated carbon was 720 m 2 /g. The textural properties of the latter product were similar to those of some commercial activated carbons. The use of tyre-derived char as a precursor of porous carbons could render the thermolytic treatment of scrap tyres more economically attractive.Implications: Char produced in thermolysis of granulated scrap tyres has a few market outlets; in this paper an alternative for its use is presented. The char was converted into activated carbon with textural properties similar to those of some commercial activated carbons. This process could render the thermolytic treatment of scrap tyres more economically attractive.

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Section: Characterization Of the Demineralized Charssupporting

confidence: 88%

Preparation and characterization of activated carbon from the char produced in the thermolysis of granulated scrap tyres

López

Centeno

Rodríguez

et al. 2013

Journal of the Air & Waste Management Association

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“…In some power plants, carbon black is made into slurry and used as fuels. As adsorbent, tyre derived carbon black is very effective in eliminating pollutants such as chromium, lead, copper, dyes and phenol from industrial liquid effluents [17,40,[68][69][70][71]. It is also used to capture industrial gaseous effluents such as SO 2 [24,72].…”

Section: Carbon Blackmentioning

confidence: 99%

Influence of process conditions on product yield of waste tyre pyrolysis- A review

Parthasarathy

Choi

Park

et al. 2016

Korean J. Chem. Eng.

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Abstract−Waste tyres have become a grave concern as their accumulation is aggregating every year. Not only the size of waste tyre has to be reduced, but also some useful energy has to be recovered out of it as the world badly requires energy from alternate sources. Pyrolysis is one such method to extract energy potential products from waste tyres. It is extensively used to generate carbon black (solid product), tyre-oil (liquid product) and syngas (gas product) from waste tyres. In that connection, this article discusses the effect of various parameters on the product composition of pyrolysis of waste tyres. The current usage of pyrolysis products and their typical characteristics are also discussed in this critique. Of late, extraction of high value added products, such as activated carbon from carbon black, and limonene from tyre-oil is gaining attention. The article also throws some light on the application and generation routes of activated carbon and limonene from waste tyres.

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“…Two in-series trapping impingers containing 4% KMnO 4 /10% H 2 SO 4 solution, which were placed at the exit of the adsorption column, were used to absorb HgCl 2 from the effluent gas stream. The HgCl 2 concentration leaving the adsorption reactor was determined by absorbing the gas with the trapping impingers 26 and by analyzing the samples with a cold vapor atomic absorption spectrometer (Buck Scientific, Model 400A). Moreover, the adsorption temperatures investigated in the adsorption column are controlled at 150 and 25°C, respectively.…”

Section: Bench-scale Adsorption Column Testsmentioning

confidence: 99%

“…Preparation of PACs from waste tires (WPAC) in conjunction with their applications of WPAC in air pollution control and wastewater treatment has been investigated in previous studies. [22][23][24][25][26][27] In addition, sulfur compounds as retained on the pore surface of WPAC during the pyrolysis and activation of waste tires were of great advantage to be used to remove vapor-phase mercury emitted from combustors and incinerators.…”

Section: Introductionmentioning

confidence: 99%

The Adsorptive Capacity of Vapor-Phase Mercury Chloride onto Powdered Activated Carbon Derived from Waste Tires

Lin

Yuan

et al. 2006

Journal of the Air & Waste Management Association

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Injection of powdered activated carbon (PAC) upstream of particulate removal devices (such as electrostatic precipitator and baghouses) has been used effectively to remove hazardous air pollutants, particularly mercurycontaining pollutants, emitted from combustors and incinerators. Compared with commercial PACs (CPACs), an alternative PAC derived from waste tires (WPAC) was prepared for this study. The equilibrium adsorptive capacity of mercury chloride (HgCl 2 ) vapor onto the WPAC was further evaluated with a self-designed bench-scale adsorption column system. The adsorption temperatures investigated in the adsorption column were controlled at 25 and 150°C. The superficial velocity and residence time of the flow were 0.01 m/sec and 4 sec, respectively. The adsorption column tests were run under nitrogen gas flow. Experimental results showed that WPAC with higher Brunauer-Emmett-Teller (BET) surface area could adsorb more HgCl 2 at room temperature. The equilibrium adsorptive capacity of HgCl 2 for WPAC measured in this study was 1.49 ϫ 10 Ϫ1 mg HgCl 2 /g PAC at 25°C with an initial HgCl 2 concentration of 25 g/m 3 . With the increase of adsorption temperature Յ150°C, the equilibrium adsorptive capacity of HgCl 2 for WPAC was decreased to 1.34 ϫ 10 Ϫ1 mg HgCl 2 /g PAC. Furthermore, WPAC with higher sulfur contents could adsorb even more HgCl 2 because of the reactions between sulfur and Hg 2ϩ at 150°C. It was demonstrated that the mechanisms for adsorbing HgCl 2 onto WPAC were physical adsorption and chemisorption at 25 and 150°C, respectively. Experimental results also indicated that the apparent overall driving force model appeared to have the good correlation with correlation coefficients (r) Ͼ0.998 for HgCl 2 adsorption at 25 and 150°C. Moreover, the equilibrium adsorptive capacity of HgCl 2 for virgin WPAC was similar to that for CPAC at 25°C, whereas it was slightly higher for sulfurized WPAC than for CPAC at 150°C.

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Preparation and characterization of mesoporous activated carbon from waste tires

Cited by 232 publications

References 21 publications

Preparation and characterization of activated carbon from the char produced in the thermolysis of granulated scrap tyres

Preparation and characterization of activated carbon from the char produced in the thermolysis of granulated scrap tyres

Influence of process conditions on product yield of waste tyre pyrolysis- A review

The Adsorptive Capacity of Vapor-Phase Mercury Chloride onto Powdered Activated Carbon Derived from Waste Tires

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