Simulation, Experimental Analysis of Biogas Upgrading and Compressing of Produced Biomethane For A 10m 3 Biogas Plant: Case Study at Sidistkilo Campus
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Date
2018-06-25
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Publisher
AAU
Abstract
Upgrading and compressing of natural gas provides a safer and cheaper alternative energy
source for transportation, electrical production and also increases its storage capabilities. The
global use of natural gas is growing quickly. This is primary attributed to its favorable
characteristics and to the environmental advantages it enjoys over other fossil fuels such as
petroleum, oil and coal.one of the key challenges in supplying natural gas is the form (phase)
at which it should be delivered. Natural gas like biogas maybe supplied to the consumer by
upgrading to reduce contaminates and finally as a compressed gas or through pipe lines.
when there is a considerable distance involved in transporting natural gas.
The present study focuses on development of a gas cleaning and compressing step for a
product gas produced in a biogas plant. Removal of contaminants from biogas can therefore
significantly improve the gas quality. The study shows that the Theoretical potential of waste
and residues for biogas production is around 230kg/day of caferia food wasted which is
produced about 9.987m
3
/day biogas and 3.74 kwh/day using the energy conversion method
from a biogas plant. This work addresses the simulation and experimental investigation of
biogas Upgrading and compression from biomethane production of 10m
3
biogas plant of food
waste. The purification study was investigated using combined chemical methods of (activated
carbon, NaOH, KOH, Wood charcoal and silica gel) improving the calorific value of biogas.
Experiment results revealed that the chemical solution used effectively in reacting with CO
,
H
2
S, H
2
O in biogas (over 80–96%) removal efficiency, creating CH
enriched biogas. The
experimental result shows these innovative technologies reduce the acidic content H
4
S by 96
% and removes the CO
by 80-90 %. Thus, the Methane content has been increased from
56.7 % to 87 %. The CO
2
content reduces from 36 % to 10 %. First the process flow sheet is
constructed based on the common process configuration. Then the key parameters taken from
2
literature are simulated using MATLAB 2017 to determine amount of chemical needed for
each g of gas produced in streams of the plant.
Description
Keywords
Biogas, upgrading, compressing, activated carbon, silica gel, NaOH