Hydrogen Sulphide Emissions Reduction Using Hydrated Lime

Hwidi, Rajeb Salem; Izhar, Tengku Nuraiti Tengku; Saad, Farah Naemah Mohd; Adam, Tijjani

doi:10.1088/1757-899x/429/1/012082

Cited by 2 publications

(2 citation statements)

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“…As an alkaline sorbent for SO 2 removal, limestone, quick lime and hydrated lime or slaked lime are commonly used [50,53,54]. Positive impact of hydrated lime was observed on reducing hydrogen sulphide emissions [55], calcium-based sorbents were also used for H 2 S removal from hot coal gas [56]. In the present study, the removal of hydrogen sulphide from biogas using manganese (IV) oxide and hydrated lime as an adsorbent in operating a biogas plant was studied.…”

Section: Introductionmentioning

confidence: 99%

Oxidization of hydrogen sulfide in biogas by manganese (IV) oxide particles

Konkol

Cebula

Cenian

2020

Environmental Engineering Research

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Hydrogen sulphide is corrosive to most metallic equipment such as pipelines, compressors, gas storage tanks, engines, turbines and other units. It acts as a strong poison for fuel cells and its combustion leads to SO2 emissions. Due to the problems associated with hydrogen sulphide, it is critical to remove it from biogas before further processing. The removal of hydrogen sulphide from biogas using MnO2, which acts as a sorbent and catalyst, was investigated. The research was conducted in a full-scale agriculture biogas plant using chicken manure and maize silage as substrate. The manganese dioxide (manganese (IV) oxide) was derived from the waste products of a water conditioning system, after manganese removal from drinking water. The obtained results showed significantly better adsorption of hydrogen sulphide and faster regeneration of the bed compared to the bed filled with hydrated iron oxides. The H2S concentration in the treated biogas dropped from about 1,650 to 0-5 ppm.

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Section: Introductionmentioning

confidence: 99%

Oxidization of hydrogen sulfide in biogas by manganese (IV) oxide particles

Konkol

Cebula

Cenian

2020

Environmental Engineering Research

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“…(Hwidi et al, 2018). Similarly, hydrated lime is used as a deodorisingagent and water purification chemical in water treatment plants.…”

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confidence: 99%

A Review of the Utilisation of Hydrated Lime (CL-90) in Engineering Applications and it’s Sustainability Implications

2022

MPS

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Lime is one of the widely used materials in several industries, with an estimated production of 430 million tons worldwide, with the iron, steel and metal industries as the leader, using 250 million tons, followed by the construction industry using around 75 million tons and the chemical industry with 55 million tons usage per annum worldwide. The broadly used types of lime are quick lime CaO (CL90 Q), hydrated lime Ca(OH)2 (CL90 S), hydraulic lime and lime putty. The primary purpose of hydrated lime is to induce alkalinity and use it as filler material to control porosity. Hydrated lime, unlike hydraulic lime, does not exhibit much-cementing properties on mixing with water. Therefore, it requires blending with suitable binders like cement, pozzolans, and bitumen to acquire better binding characteristics. Hydrated lime is widely used in the iron and steel industry as a cheap, sustainable material for converting iron into pig iron and steel and improving the durability of refractories in the blast furnace. The agriculture and food industry also relies heavily on hydrated lime to be used as a purifying flocculating coagulating agent, especially in the sugar industry. The hydrated lime acts as an alkali activator, deodorising and anti-bacterial chemical in treating wastewater/sludge, agricultural fields and environmental protection. The hydrated lime is used to treat wet, marine and cohesive expansive clayey soils as it absorbs moisture and improves engineering properties like compressibility, strength, plasticity, bearing capacity, consistency, sheer strength and shrinkage etc. One of the main usages of hydrated lime in civil engineering applications is in cementbased mortars as a plasticiser. Therefore, the hydrated lime can be recommended for use in diverse industries and multi-purpose roles.

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Hydrogen Sulphide Emissions Reduction Using Hydrated Lime

Cited by 2 publications

References 45 publications

Oxidization of hydrogen sulfide in biogas by manganese (IV) oxide particles

Oxidization of hydrogen sulfide in biogas by manganese (IV) oxide particles

A Review of the Utilisation of Hydrated Lime (CL-90) in Engineering Applications and it’s Sustainability Implications

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