Using quadrupole mass spectrometry for on-line gas analysis – Gasification of biomass and refuse derived fuel

Le, Chien Dinh; Kolaczkowski, S.T.; Mcclymont, David

doi:10.1016/j.fuel.2014.09.010

Cited by 22 publications

(37 citation statements)

References 5 publications

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“…However, in this study, it was decided to perform such experiments in a small packed-bed reactor, which is often used in heterogeneous catalytic experiments. A fast gas analysis method developed in Le et al (2015) using a quadrupole mass spectrometer (QMS) was used to measure the product gas composition on-line, which was then used to calculate the rate of carbon conversion in the char. …”

Section: Decisions Takenmentioning

confidence: 99%

Steam gasification of a refuse derived char: Reactivity and kinetics

Kolaczkowski

2015

Chemical Engineering Research and Design

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a b s t r a c tA char was obtained from a commercial pilot-scale gasifier, which had been operating with a refuse derived fuel (RDF). Using this char, steam gasification experiments were then performed in a 15.6 mm i.d. packed bed tubular reactor. The effect of reaction temperature was studied (800 • C to 900 • C), and also the partial pressure of steam were in the range 33.3 kPa to 66.7 kPa. With the aid of the Shrinking-Core and the Uniform-Reaction models, kinetic parameters were estimated (apparent activation energy varied from 96 kJ mol −1 to 162 kJ mol −1 ). It was also found that at lower carbon conversions (e.g. 10% to 60%) the RDF-derived char appeared to be more reactive than other bio-chars reported in the literature. However, at higher conversions (>60%), its apparent reactivity decreased with carbon conversion, thereby behaving in a similar manner to chars derived from coal.

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Section: Decisions Takenmentioning

confidence: 99%

Steam gasification of a refuse derived char: Reactivity and kinetics

Kolaczkowski

2015

Chemical Engineering Research and Design

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“…The response time of the mass spectrometer is less than 2 s. The gas outlet of TGA and the transfer line were all heated to 220°C to avoid steam condensation. Mass spectrometry identifies the species by using the differences in mass-to-charge ratio (m/z) of ionized atoms or molecules [21]. The gaseous compounds generated during pyrolysis including H 2 , CH 4 , H 2 O, and CO 2 could be easily detected, and their mass-to-charge ratios were set at m/z (2), m/z (16), m/z (18), and m/z (44) separately.…”

Section: Slow Pyrolysis Of Coals In Tg-msmentioning

confidence: 99%

Effects of coal drying on the pyrolysis and in-situ gasification characteristics of lignite coals

et al. 2015

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“…FTIR is, however, not as sensitive as QMS for those micromolecules in the volatile products. Moreover, QMS and FTIR are always employed for qualitative analysis rather than quantitative one (Le et al 2015). Compared with QMS and FTIR, GC operation is more accurate and reliable for quantitative analysis, but it has always to be off-line performed for compromising its defect of batch sampling.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of gas evolution profiles during coal pyrolysis and its relation with the variation of functional groups

Zhang

Takeda

et al. 2017

Int J Coal Sci Technol

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Strict relation between the substituents or functional groups attached to the coal macromolecules and the generation of the volatile products, e.g., CH 4 , H 2 O, CO, CO 2 , etc., during the coal pyrolysis is an important but confusing subject. In this paper, quadrupole mass spectrometry, gas chromatography, and 13 C nuclear magnetic resonance are applied to real-time monitoring the formations of volatile products, off-line quantitative determination of the total products from the pyrolysis of a sub-bituminous coal (SC), and the changes of diverse substitents in the SC along with coke foamation, respectively. These measurements are also performed for the pyrolysis of a caking coal to contrast SC. The qualitative and quantitative data reveal that, during coal pyrolysis, the functional groups related with the formation of CO, i.e., ether, carbonyl, and anhydride, can directly generate CO via bond breaking, or take a detour of the formation of other intermediates via condensation and recombination firstly. Moreover, the formations of CO 2 and CH 4 are related to the direct removal of -COO-and -CH 3 , respectively.

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Using quadrupole mass spectrometry for on-line gas analysis – Gasification of biomass and refuse derived fuel

Cited by 22 publications

References 5 publications

Steam gasification of a refuse derived char: Reactivity and kinetics

Steam gasification of a refuse derived char: Reactivity and kinetics

Effects of coal drying on the pyrolysis and in-situ gasification characteristics of lignite coals

Characteristics of gas evolution profiles during coal pyrolysis and its relation with the variation of functional groups

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