Removal of siloxane from digestion gas of sewage sludge

Matsui, Toru; Imamura, Shigeru

doi:10.1016/j.biortech.2009.05.037

Cited by 97 publications

(56 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The highest adsorption capacity 55.7mg /g were found for the AC2 which is consistent with the result found in the study of Matsui T. and Imamura, S. [8]. The concentration of siloxane D4 is the second highest found in the ADG of Torino, Italy, According to Matsui, T. and Imamura, S., [8] the break through time for D4 siloxane is lower compared to D5 siloxane.…”

Section: Siloxane Adsorptionsupporting

confidence: 88%

H2S and Siloxane D5 Removal from Anaerobic Digestion Gas by Adsorption

et al. 2017

View full text Add to dashboard Cite

Abstract:Global warming and depletion of fossil fuel enhances people to obtain alternative clean sources of energy. The key objective of this study was to develop adsorbent systems for sulphur (from H 2 S) and siloxanes removal from the anaerobic digestion gas (ADG) by commercially available adsorbents for a solid oxide fuel cell (SOFC) application. The target limits for removal of sulphur and siloxane compounds were less than 1 ppmv and 100ppbv respectively for the SOFC application. Based on the results of this work (this work is a part of a European Union project named SOFcom) and some other projects of SOFcom, a pilot plant of SOFC (capacity 100 kW fuel energy) will attempt to operate using the ADG produced from the Torino Sewage Plant, Italy. Different types of siloxanes were available in the ADG, among them D5 was chosen as representative for their higher concentrations (1200ppbv) in Torino, Italy. However, all types of siloxanes are also possible to remove from ADG by the same adsorbent. Commercially available adsorbents such as Activated Carbon (sigma), Zeolite 5A, FCDS GS-1(ZnO) and FCDS GS6, Active carbon (Norit RST3) and Soxsia were explored in the fixed bed reactor in laboratory. Artificially simulated ADG was tested in the laboratory (for simplicity) to determine the adsorption capacities of adsorbents. FCDS GS-1 (48 mg/g) and Norit RST3 (55.7 mg/g) were performed as best adsorbents for sulphur and siloxane D5 removal respectively.

show abstract

Section: Siloxane Adsorptionsupporting

confidence: 88%

H2S and Siloxane D5 Removal from Anaerobic Digestion Gas by Adsorption

et al. 2017

View full text Add to dashboard Cite

show abstract

“…For example, the limit is between 5 mg/m 3 and 28 mg/m 3 for internal combustion engine. However, the siloxanes content in biogas produced by sewage sludge digestion reached 20-59.8 mg/m 3 [8]. It is necessary to consider the siloxanes removal methods for the development of biogas power generation industry.…”

Section: Siloxanes Characteristicsmentioning

confidence: 99%

“…The performance of adsorption is highly dependent on the molecular size of each siloxanes and the pore distribution of adsorbents, the carbon-based adsorbents with micro-pores are more efficient at removing L2 than D4 or D5, while non-carbon adsorbents that have meso or macro-pores are proper for D4 and D5 adsorption [9]. It was concluded that the adsorbents with large BET-specific surface areas and pH value are desired for the removal of siloxanes [10,11]. The siloxanes removal efficiency could reach 90-99% by solid adsorption technology, while the adsorbents are usually non-selective and the humidity will decrease the treatment efficiency of activated carbon.…”

Section: Siloxanes Removal Technologies From Biogasmentioning

confidence: 99%

Techniques for Siloxanes Removal from Biogas Produced by Sewage Sludge Digestion

Zhang¹,

Cui²,

Zhu³

et al. 2017

dteees

View full text Add to dashboard Cite

Abstract. Biogas production from sewage sludge digestion is one of the most effective methods for sewage sludge recycling. During the transformation from biogas to biomethane, the unfavorite component must be removed. As a trace amount of undesirable component, the siloxanes in biogas will damage the biogas power generation equipment, which is disadvantage to the biogas utilization. This paper stated the characteristics of siloxanes and the siloxanes removal technologies. The siloxanes removal technologies from biogas, including adsorption on solid material, gas-liquid absorption, condensation, membrane separation, biological treatment, were reviewed and compared. Otherwise, the pre-aeration on anaerobic digestion of sludge was introduced as an alternative for siloxanes removal before digestion.

show abstract

“…Activated Carbon (AC) is frequently used for the removal of organic vapors [63][64][65], and it has also been demonstrated to be efficient in removing siloxanes [61,66]. By AC we define carbon that has not been impregnated (such as KOH-impregnated carbon) or functionalized by, for example, Cu or Cr.…”

Section: Low Temperature Polisher (Activated Carbon)mentioning

confidence: 99%

“…The mixture model was compared with data in the literature for multi component mixtures. Matsui et al [66] determined the breakthrough for two siloxanes (D4 and D5) in a mixture of digester gas from a waste water treatment plant. D4 followed by D5 were the first species to be eluted from the bed.…”

Section: Mixture Modelmentioning

confidence: 99%

Fuel quality issues in stationary fuel cell systems.

Papadias¹,

Ahmed²

2012

View full text Add to dashboard Cite

Removal of siloxane from digestion gas of sewage sludge

Cited by 97 publications

References 15 publications

H2S and Siloxane D5 Removal from Anaerobic Digestion Gas by Adsorption

H2S and Siloxane D5 Removal from Anaerobic Digestion Gas by Adsorption

Techniques for Siloxanes Removal from Biogas Produced by Sewage Sludge Digestion

Fuel quality issues in stationary fuel cell systems.

Contact Info

Product

Resources

About