A Novel and Cost-Effective Hydrogen Sulfide Removal Technology Using Tire Derived Rubber Particles

Siefers, Andrea; Wang, Ning; Sindt, Andrew; Dunn, J. R.; McElvogue, James; Evans, Eric A.; Ellis, T.R.

doi:10.2175/193864710798182682

Cited by 20 publications

(2 citation statements)

References 20 publications

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“…These are zinc oxide, iron oxide, biomass activated carbon, manganese oxide, copper oxide, potassium oxide, calcium carbonate oxide, municipal sewage sludge, soil containing metal oxides of nickel, chromium, lead, molybdenum, magnesium, cobalt, strontium, manganese, etc. (Siefers et al, 2010). Studies have shown that oxide of iron and copper species are active components in reacting with H2S from hot coal gas (Huang and Ko, 2015).…”

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confidence: 99%

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Removal of hydrogen sulfide and ammonia from biogas using Oldoinyo Lengai Volcanic ash

Kandola

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Oldoinyo Lengai mountain located in Northern Tanzania is the only active natrocarbonatite volcano with unusually alkali-rich natrocarbonatites which are not found elsewhere in the world. Volcanic ash formed earlier during eruptions was collected from different sites along the mountain, and its potency to adsorb hydrogen sulfide (H2S) and ammonia (NH3) from biogas was investigated. The samples were calcinated at different temperatures (550–850 °C) and were characterized by X-ray fluorescence, scanning electron microscopy and X-ray diffraction techniques. The on-site adsorption experiments were conducted at the biogas digester at ambient conditions. The calcinated ash was packed into the reactor bed, biogas allowed to pass through the adsorbent, and the inlet and outlet concentrations of H2S and NH3 were measured. The height of the site where the adsorbent was taken from, calcination temperature, biogas flowrate and mass of the adsorbent were variable parameters and found to influence greatly on the efficiency of H2S and NH3 removal. The efficiency increased with calcination temperature raise and mass of adsorbent and decreased with flowrate increase. The samples collected from the top site of the mountain and calcinated at 850 °C exhibited the best sorption performance (SC) of 1.0 g of S/100 g of adsorbent when the mass of adsorbent of 1 g and the biogas flowrate of 0.002 m3/min were used as standard parameters for this study. Chemisorption of H2S was confirmed via bornite and hexahydrite, while CO2, confirmed via trona, pirssonite and nahcolite while NH3 was detected by gas analyzer.

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Section: List Of Appendincesmentioning

confidence: 99%

“…The materials were readily available, compared with other materials reported to be expensive, poisonous, tedious requiring much labor (Siefers et al, 2010). To the moment, there were not enough measures to purify the biogas in Tanzania (Mwakaje, 2008;Torretta et al, 2012;Laramee and Davis, 2013).…”

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confidence: 99%

Removal of hydrogen sulfide and ammonia from biogas using Oldoinyo Lengai Volcanic ash

Kandola

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Preventing sour gas kicks during workover of natural gas wells from deep carbonate reservoirs with anti‐hydrogen sulfide fuzzy‐ball kill fluid

Yan

Okere

Zeng

et al. 2022

Energy Science & Engineering

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Workover of natural gas wells in deep carbonate gas reservoirs (DCRs) is facing multiple challenges such as fluid leakage, high temperature, and hydrogen sulfide (H2S) gas kick. Hence, well‐killing fluids with satisfactory plugging ability, high‐temperature tolerance, and anti‐H2S ability are necessary. In this study, we developed a multifunctional anti‐hydrogen sulfide fuzzy‐ball kill fluid (AFKF) for preventing sour gas kicks in DCRs. The performance of the AFKF was optimized and analyzed via experiments and verified through a case study application. The results showed that the fuzzy‐ball structures in the AFKFs demonstrated good stability under extreme H2S aging. The rate of change of certain critical rheological parameters such as apparent viscosity, dynamic plastic ratio, and density of AFKFs before and after hot rolling were no more than 5%. After plugging the fractures with the AFKFs at temperatures between 110°C and 150°C, the inlet driving pressure of the fractures increased from 20.73°C to 21.07 MPa, and no fluid loss was observed at the core outlet after a secondary displacement of formation water. The permeability recovery rate was greater than 90%. Application of AFKF in well DW‐2 showed that the shut‐in pressure rose to 24.6 MPa with no trace of H2S gas at the wellhead after 4 days. The investigation of the H2S mitigation mechanisms revealed that the plugging of the seepage channels by AFKFs forms interconnected bonds that improve the mechanical properties of the reservoir. Additionally, AFKFs absorb H2S gases by protonation and dissociation reactions which convert the hazardous gas into an aqueous solution of sulfide ions (S2−). The proposed AFKF has proven to be effective means of mitigating H2S in DCRs, and minimize the negative impacts of environmental polution, health risks, and equipment corrosion.

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Recent Trends in Biogas Upgrading Technologies for Biomethane Production

Dhanya¹,

Singh²,

Jana

et al. 2020

Clean Energy Production Technologies

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A Novel and Cost-Effective Hydrogen Sulfide Removal Technology Using Tire Derived Rubber Particles

Cited by 20 publications

References 20 publications

Removal of hydrogen sulfide and ammonia from biogas using Oldoinyo Lengai Volcanic ash

Removal of hydrogen sulfide and ammonia from biogas using Oldoinyo Lengai Volcanic ash

Preventing sour gas kicks during workover of natural gas wells from deep carbonate reservoirs with anti‐hydrogen sulfide fuzzy‐ball kill fluid

Recent Trends in Biogas Upgrading Technologies for Biomethane Production

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