A H2S reactive adsorption process for the purification of biogas prior to its use as a bioenergy vector

Truong, Le Vinh; Abatzoglou, Nicolas

doi:10.1016/j.biombioe.2005.03.001

Cited by 81 publications

(52 citation statements)

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“…Part of the reason for choosing this iron oxide media was that pieces of information regarding the use of [44,47] and in the literature [52] were helpful in developing a model for design purposes.…”

Section: Primary Clean-up (H 2 S)mentioning

confidence: 99%

“…The equation for the particle assumes that diffusion is the rate limiting process, and it is derived from the principles of the shrinking core model [53,54]. The model could be fitted to the breakthrough data of Truong et al [52] (see Figure 10), and it could also predict the effects of other experimental conditions (e.g., varying flow rates and H 2 S concentrations). However, the experiments were done at room temperature and, at such conditions, iron oxide media perform poorly (only 2.8 wt% adsorption capacity of sulfur was achieved, as opposed to a maximum of ~12 wt%).…”

Section: Primary Clean-up (H 2 S)mentioning

confidence: 99%

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Fuel quality issues in stationary fuel cell systems.

Papadias¹,

Ahmed²

2012

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Section: Primary Clean-up (H 2 S)mentioning

confidence: 99%

Section: Primary Clean-up (H 2 S)mentioning

confidence: 99%

Fuel quality issues in stationary fuel cell systems.

Papadias¹,

Ahmed²

2012

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“…This contaminant is undesirable in combustion systems due to its conversion to highly corrosive and environmentally hazardous compounds. It is essential to remove before any further utilization of biogas [1], [3], [4]. Hydrogen sulfide is a pollutant that is commonly regarded as toxic.…”

Section: Introductionmentioning

confidence: 99%

Processing Carbon Rod from Waste of Zing-Carbon Battery for Biogas Desulfurizer

Nindhia¹,

Surata²,

Atmika³

et al. 2015

JOCET

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Abstract-The carbon rod of used zinc-carbon battery was investigated in this research to be recycled as biogas desulfurizer. The carbon rod was taken out from the used battery and crushed to become a pellet with about 1 cm long. To increase its performance, the carbon rod was put in solution of KMnO 4 and water then tested its performance as desulfurizer. It is found that the performance of desulfurizer increase by putting about 200 gram of carbon rod in the solution of KMnO 4 with minimum concentration of 20 gram KMnO4 /liter water. It is suggested during application to use low flow rate of biogas (around 1-3 liters/minute) to achieve maximum performance.

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“…The test gases have commonly been hydrated by bubbling through a water bath prior to treatment by various media such as biochar (White, 2010) and the commercial iron oxide based media, cg4 (Wang, 2008) and Sulfatreat 410-HP® (Truong and Abatzoglou, 2005), contained in small-scale (1 to 6 cm dia) glass, PVC or stainless steel reactor columns. Gas flows through the columns have typically been regulated using mass flow controllers, and in some cases, the flowrates, flow velocities and gas composition have been varied throughout the experiments.…”

Section: Practical Options For H2s Removal From Piggery Biogasmentioning

confidence: 99%

“…Gas flows through the columns have typically been regulated using mass flow controllers, and in some cases, the flowrates, flow velocities and gas composition have been varied throughout the experiments. The concentrations of H2S in the gases entering and exiting the test columns are usually measured using various methods such as gas chromatography (Wang, 2008), commercial H2S detectors with electro-chemical cells (Gas Badge Pro, White, 2010) or precision detector tube colorimetric method (Truong and Abatzoglou, 2005). From such tests, breakthrough curves are typically obtained to determine the sulphur sorption capacity corresponding to various constant inlet H2S concentrations and particular H2S concentrations in the treated gas outflow.…”

Section: Practical Options For H2s Removal From Piggery Biogasmentioning

confidence: 99%

Practical options for cleaning biogas prior to on-farm use at piggeries

Skerman¹

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Interest in the use of biogas from anaerobic digestion has been increasing within the Australian pork industry in recent years, driven by a significant potential for biogas use to buffer rising energy costs and to reduce carbon emissions from individual piggeries and across the whole pork industry. A recent life cycle assessment study suggested that a 64% reduction in piggery GHG emissions could be achieved by installing biogas capture and use systems. Further Government incentives have also contributed to the growing interest in on-farm biogas.One of the major obstacles to adoption of on-farm biogas technology in the Australian pork sector is the presence of relatively high concentrations of hydrogen sulphide (H2S) in raw piggery biogas, commonly in the range of 500 to 3000 ppm. Smelling like rotten eggs, H2S is highly toxic and corrosive. Exposure to H2S, even at relatively low concentrations, can result in severe human health impacts, while corrosion and increased maintenance of biogas use equipment necessitates some form of biogas treatment to remove H2S to suitable levels.Many of the existing biogas treatment technologies used in other industries are not ideally suited for on-farm application in the Australian pork industry, because on-farm systems must be relatively simple, low-cost, safe, robust and scalable, producing minimal hazardous waste products. However, a literature review, which examined various existing biogas purification technologies, identified biological oxidation of H2S and chemisorption with iron-based solid media as potential options for piggeries, provided that some key research and development gaps could be addressed. A particular issue with regard to chemisorption was the high cost of replacing commercial chemisorption medium (accounting for up to 5% of the savings derived from biogas use). Of further interest was the observation that the active components in commercial chemisorption media were also relatively common in natural materials such as soils, and even in some agricultural and industrial waste and by-products. However, such alternative chemisorption media required targeted laboratory and on-farm testing. With regard to biological oxidation, there was a need to determine whether the treated effluent outflow from a covered anaerobic lagoon could be used as a viable nutrient source in an external packed column system. This concept required testing on-farm.(ii)To assess chemisorption options, a detailed and carefully designed laboratory study tested and compared the H2S removal capacity of a commercial iron-based medium (cg5) with that of a range of low-cost alternative media. The results of these trials indicated a far superior performance of a commercial cg5 medium, probably due to its engineered high porosity and high iron content (the active ingredient). However, a locally sourced red soil was a potentially feasible alternative medium, with reasonable chemisorption capacity and likely low cost and ready availability, depending on the piggery locality. While the pressur...

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A H2S reactive adsorption process for the purification of biogas prior to its use as a bioenergy vector

Cited by 81 publications

References 1 publication

Fuel quality issues in stationary fuel cell systems.

Fuel quality issues in stationary fuel cell systems.

Processing Carbon Rod from Waste of Zing-Carbon Battery for Biogas Desulfurizer

Practical options for cleaning biogas prior to on-farm use at piggeries

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