Use of amino phase adsorbent for biomass tar sampling and separation

Brage, Claes; Yu, Qizhuang; Chen, Guanxing; Sjöström, Krister

doi:10.1016/s0016-2361(96)00199-8

Cited by 185 publications

(129 citation statements)

References 14 publications

Supporting

Mentioning

127

Contrasting

Order By: Relevance

“…Solid Phase Adsorption (SPA) is an offline method developed by KHT in the 1990's [5]. This method uses an amino phase adsorbent in order to trap aromatic hydrocarbons and phenols that are called GC-available (GA) compounds.…”

Section: )mentioning

confidence: 99%

“…This method uses an amino phase adsorbent in order to trap aromatic hydrocarbons and phenols that are called GC-available (GA) compounds. At 900 °C and above the GA-compounds roughly correspond to the total tar amount [5]. These compounds are subsequently desorbed and analysed in GC-FID gas chromatographer with FID.…”

Section: )mentioning

confidence: 99%

“…In addition, a proper evaluation of the tar concentration contained in syngas prior an engine air fuel mixing system is critical to reduce engine maintenance [3]. Several tar testing methods are described in literature [4][5][6][7][8][9]. The methods can be classified in two groups: online and offline.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The use of on-line colorimetry for tar content evaluation in gasification systems

Quinlan¹,

Kaufmann²,

Allesina³

et al. 2017

IJHT

View full text Add to dashboard Cite

Gasification of biomass has the potential to become a relevant technology for a sustainable future. However, the content of tar in the gas produced through gasification needs to be managed properly in order to increase the reliability of the technology. Accurate measurement of tar gas concentrations enables management and technology improvement. Standardized offline measurement methods require a long time to produce a numerical result from a test. This work presents a novel colorimetric method to assess the tar concentration contained in syngas. The method uses an apparatus that includes a heated thimble filter (to remove particulate), gas quenching with isopropyl alcohol (IPA), a vapor knockout and cooling system including a final stage fritted glass bubbler/impinger, IPA removal via a peristaltic pump controlled by a capacitive level sensor, IPA flow metering, colorimeter for IPA/tar solution light absorbance measurement, and gas pumping/metering circuit. The method is robust and fast because it is based on a continuous light absorbance measurement. The system was compared against the tar protocol standard showing good correlation between average absorbance and tar concentration. Results demonstrate the capability of the proposed method to give continuous real-time measurement of the tar concentration in the gas.

show abstract

Section: )mentioning

confidence: 99%

Section: )mentioning

confidence: 99%

See 1 more Smart Citation

The use of on-line colorimetry for tar content evaluation in gasification systems

Quinlan¹,

Kaufmann²,

Allesina³

et al. 2017

IJHT

View full text Add to dashboard Cite

show abstract

“…Great efforts have been dedicated in this field and detailed information is available in several extensive review papers [4][5][6][7]. Since tar composition offers quantitative and qualitative information about the gasification conditions, quantitative measurement of tar in the product gas is decisively important to assess the effectiveness of cleanup and conditioning processes and to verify the suitability of the cleaned product gas for its final downstream use [2,8].…”

Section: Introductionmentioning

confidence: 99%

“…The Biomass Gasification Task Working Group of the International Energy Agency (IEA) has completed an impinger-based, standardized international CEN Technical Specification "Biomass gasification-Tar and Particles in Producer Gases-Sampling and Analysis", which is based on "Tar Guideline" to assist developers and end-users of biomass gasification technologies in measuring tar in the product gas [13]. The solid phase adsorption (SPA) method was developed by the Royal Institute of Technology (KTH) to quantify tar species ranging in molecular weight from benzene to coronene, prevailing in product gas produced from biomass gasification within the temperature range from 700 to 1000°C [8,14]. The favorable features that distinguish the SPA method from the CST method include reliability, speed of sampling, simplicity, accuracy, reproducibility and specificity.…”

Section: Introductionmentioning

confidence: 99%

Tar formation in a steam-O2 blown CFB gasifier and a steam blown PBFB gasifier (BabyHPR): Comparison between different on-line measurement techniques and the off-line SPA sampling and analysis method

Meng

Mitsakis²,

Mayerhofen³

et al. 2012

Fuel Processing Technology

View full text Add to dashboard Cite

Keywords:Circulating fluidized bed (CFB) gasifier Pressurized bubbling fluidized bed (PBFB) gasifier BabyHPR (Heatpipe Reformer)"" Solid phase adsorption (SPA) Laser induced fluorescence spectroscopy (LIFS) On-line tar analyzer (OTA) Two on-line tar measurement campaigns were carried out using an atmospheric pressure 100 ""kW th steam-O 2 blown circulating fluidized bed (CFB) gasifier at the Delft University of Technology (TUD) and a 30-40kW th steam blown pressurized bubbling fluidized bed (PBFB) gasifier BabyHPR (Heatpipe Reformer) at the Technical University Munich (TUM). Agrol, willow and Dry Distiller's Grains with Solubles (DDGS) were used. An FID based on-line tar analyzer (OTA), an induced fluorescence spectroscopy (LIFS) based on-line laser instrument, and offline solid phase adsorption (SPA) were used to quantify tar content. In general, there was a fairly good agreement between the measured results of the 10 corresponding individual tar compounds obtained from Agrol and willow CFB and PBFB atmospheric pressure tests using the SPA and LIFS methods. The measured tar concentration difference between these two methods was less than 10%. However, a higher difference (up to 30%) was observed for fluoranthene and pyrene obtained from DDGS CFB test as well as those obtained from willow PBFB under pressure test. The total tar concentration measured by the LIFS, SPA and OTA methods varied in a comparable way with changing process parameters. Both the LIFS and OTA methods can be used as indicators to observe gasifier's performance change in real time, but a regular calibration of the OTA analyzer is required to achieve good and reliable results.

show abstract

Guideline for Sampling and Analysis of Tars and Particles in Biomass Producer Gases

Kiel

Neeft

Paasen

et al. 2001

Progress in Thermochemical Biomass Conversion

View full text Add to dashboard Cite

This paper reports the further development of a Guideline (formerly Protocol) for sampling and analysis of tars from biomass producer gases. This Guideline is being developed in a project in the European Fifth Framework Programme with additional partners from Switzerland and North America.This paper gives the outline and principle of the Guideline. The Guideline is based on isokinetic sampling of particles and tar from the main producer gas duct, particle filtration at high temperature, gas cooling in a liquid quench, tar absorption in a solvent at low temperatures, an optional backup adsorber, and flow measurement and control. The Guideline gives a definition for Gravimetric tar which is the tar number to be determined by the Guideline. Besides, the Guideline gives procedures for compound analysis by GC-MS or GC-FID.Moreover, in this paper the major choices that were made to come to the first version of the Guideline are explained. Finally, at the end of the paper it is described how and on what time scale the development of the Guideline will be completed.This paper does not contain the full text of the Guideline. This full text will be available on the Internet at www.tarweb.net.

show abstract

Use of amino phase adsorbent for biomass tar sampling and separation

Cited by 185 publications

References 14 publications

The use of on-line colorimetry for tar content evaluation in gasification systems

The use of on-line colorimetry for tar content evaluation in gasification systems

Tar formation in a steam-O2 blown CFB gasifier and a steam blown PBFB gasifier (BabyHPR): Comparison between different on-line measurement techniques and the off-line SPA sampling and analysis method

Guideline for Sampling and Analysis of Tars and Particles in Biomass Producer Gases

Contact Info

Product

Resources

About