Characterization of recycled rubber media for hydrogen sulphide (H2S) control.

Characterization of recycled rubber media for hydrogen sulphide (H2S) control.

Environmental technology (2014-08-26)

Ning Wang, Jaeyoung Park, Eric A Evans, Timothy G Ellis

ABSTRACT

Hydrogen sulphide (H2S) adsorption capacities on recycled rubber media, tyre-derived rubber particle (TDRP), and other rubber material (ORM) have been evaluated. As part of the research, densities, moisture contents, and surface properties of TDRP and ORM have been determined. The research team findings show that TDRP and ORM are more particulate in nature and not highly porous-like activated carbon. The characteristics of surface area, pore size, and moisture content support chemisorption on the macrosurface rather than physical adsorption in micropores. For example, moisture content is essential for H2S adsorption on ORM, and an increase in moisture content results in an increase in adsorption capacity.

MATERIALS

Product Number

Brand

Product Description

93067

Sigma-Aldrich

Activated Charcoal Norit^®, Norit^® SX2, powder, from peat, multi-purpose activated charcoal, steam activated and acid washed

53663

Sigma-Aldrich

Activated Charcoal Norit^®, Norit^® SX ultra, from peat, steam activated and acid washed, highly purified, powder

22874

Sigma-Aldrich

Activated Charcoal Norit^®, Norit^® PK 1-3, from peat, steam activated, granular

29204

Sigma-Aldrich

Activated Charcoal Norit^®, Norit^® RB3, steam activated, rod

37771

Sigma-Aldrich

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97876

Sigma-Aldrich

Activated Charcoal Norit^®, Norit^® CA1, wood, chemically activated, powder

633100

Sigma-Aldrich

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80485

Supelco

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31616

Supelco

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05112

Millipore

Activated charcoal, suitable for GC

484164

Sigma-Aldrich

Carbon, glassy, spherical powder, 2-12 μm, 99.95% trace metals basis

C5510

Sigma-Aldrich

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05105

Supelco

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161551

Sigma-Aldrich

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C9157

Sigma-Aldrich

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C3014

Sigma-Aldrich

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242233

Sigma-Aldrich

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GF73005825

Carbon, rod, 300mm, diameter 6.35mm, graphite, 100%

29238

Supelco

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GF24441106

Carbon, tube, graphite, 150mm, outside diameter 3.18mm, inside diameter 1.18mm, wall thickness 1.0mm, 99.95%

GF39402716

Carbon, tube, graphite, 150mm, outside diameter 6.35mm, inside diameter 3.15mm, wall thickness 1.6mm, 99.95%

242241

Sigma-Aldrich

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242276

Sigma-Aldrich

Activated charcoal, DARCO^®, −100 mesh particle size, powder

C2764

Sigma-Aldrich

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C7606

Sigma-Aldrich

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C4386

Sigma-Aldrich

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329428

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242268

Sigma-Aldrich

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GF16618327

Carbon, foil, 15mm disks, thickness 0.2mm, flexible graphite, 99.8%

GF64201249

Carbon, foil, 25x25mm, thickness 2.5mm, rigid graphite, fine grain size, 99.95%