Separation of Hydrogen Sulfide from Biogas Using Laterite Soil as Adsorbent
The need for energy use is increasing along with population growth, increasing energy consumption by the community, and due to the use of various types of equipment to support comfort. Biogas production contributes as a sustainable renewable alternative energy because raw materials are easily obt...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/38487 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | The need for energy use is increasing along with population growth, increasing energy
consumption by the community, and due to the use of various types of equipment to support
comfort. Biogas production contributes as a sustainable renewable alternative energy because raw
materials are easily obtained and economical. However, biogas emissions can cause damage to
the environment due to the presence of hydrogen sulfide pollutants. One method that can be used
for this separation is adsorption using laterite soil. The advantage of using laterite soil as an
adsorbent is that it is cheap, easy to obtain, and adsorption can occur at room temperature.
In this study, the parameters to be varied are bed height and particle size of laterite soil used.
Before use, the laterite soil is dried first at 100oC for 1 hour. The process of separating hydrogen
sulfide from biogas was carried out by flowing biogas into the adsorption column with a diameter
of 2.5 cm containing the adsorbent of laterite soil. The operating conditions are in the form of air
pressure in Ngamprah sub-district (1.01 bara) and ambient temperature (28oC). Variations in the
experiment are particle size, 6 and 21 mesh, and bed height is 7 and 12 cms. The biogas flow rate
is kept constant at 1.5 liters / minute.
The particle size and bed height affect the performance of adsorption. Reducing the particle size
of the adsorbent from 6 mesh to 21 mesh will increase the adsorption capacity to 2.13 times, ie
from 7.30 to 14.22 mg H2S / g adsorbent. The addition of bed height from 7 cms to 12 cms will
increase the adsorption capacity from 6.69 to 7.92 mg H2S / g adsorbent at 6 mesh particle size.
The addition of bed height from 7 cms to 12 cms will increase the adsorption capacity from 13.48
to 14.96 mg H2S / g adsorbent at 21 mesh particle size. The laterite soil adsorbent with a particle
size of 21 mesh has the highest adsorption capacity of 14.96 mg H2S / g adsorbent.
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