How Bio Gas (Gobar Gas) can BE filled in Gas Cylinders? गोबर गैस को सिलिंडर में कैसे भरे और इससे गाडी कैसे चलाये...पढिये...
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MahanDeshBharat
May 22, 2012, 5:39:27 AM5/22/12
to vkv...@rdat.iitd.ernet.in
How Bio Gas can BE filled in Gas Cylinders?
40 % carbon dioxide, 0.5-1.0 % hydrogen
sulfide and water vapour. It is almost 20%
lighter than air. Like Liquefied Petroleum Gas
(LPG) it cannot be converted to liquid state
under normal temperature.
Removing
carbon dioxide and compressing it into
cylinders makes it easily usable for transport
applications, say three wheelers, cars, pick up
vans etc and also for stationary applications at Biogas run CAR
various long distances. Already, CNG technology has become easily available and therefore,
bio-methane (enriched biogas) which is nearly same as CNG, can be used for all
applications for which CNG are used.
Biogas enrichment process
carbon dioxide and compressing it into
cylinders makes it easily usable for transport
applications, say three wheelers, cars, pick up
vans etc and also for stationary applications at Biogas run CAR
various long distances. Already, CNG technology has become easily available and therefore,
bio-methane (enriched biogas) which is nearly same as CNG, can be used for all
applications for which CNG are used.
Biogas enrichment process
A variety of processes are available for enrichment i.e. removing CO2, H2S and water
vapour. Commonly CO2 removal processes also remove H2S. One of the easiest and
cheapest methods involved is the use of pressurized water as an absorbent liquid. In this
method, biogas is pressurized and fed to the bottom of a scrubber column where water is
sprayed from the top. In counter-currently operated absorption process, the carbon dioxide
and hydrogen sulfide present in the biogas is absorbed in down going water and methane
goes up and is collected in vessel. However, water requirement in this process is high but it
is the simplest method of removing impurities from biogas.
Concept of alternative Bio-CNG
Biogas contains a large proportion (about 40
% by volume) of carbon dioxide, a heavier and
non combustible gas and some fraction of
hydrogen sulphide.
Hence it is needed to enrich
biogas by removing these undesirable gases to
save compression energy and space in bottle and
corroding effect, which can be done by scrubbing.
The scrubbing system is found to enrich methane
about 95 % or more depending upon biogas inlet
and water injection pressure. Biogas can be used
for all applications designed for natural gas,
assuming sufficient purification.
Scope of the technology
Enriched biogas is made moisture free by passing it through filters, after which it is
compressed up to 200 bar pressure using a three stage gas compressor. Compressed gas
is stored in high pressure steel cylinders as used for CNG. There is large potential of this
technology in buses, tractors, cars, auto rickshaws, irrigation pump sets and in rural
industries.
biogas by removing these undesirable gases to
save compression energy and space in bottle and
corroding effect, which can be done by scrubbing.
The scrubbing system is found to enrich methane
about 95 % or more depending upon biogas inlet
and water injection pressure. Biogas can be used
for all applications designed for natural gas,
assuming sufficient purification.
Scope of the technology
Enriched biogas is made moisture free by passing it through filters, after which it is
compressed up to 200 bar pressure using a three stage gas compressor. Compressed gas
is stored in high pressure steel cylinders as used for CNG. There is large potential of this
technology in buses, tractors, cars, auto rickshaws, irrigation pump sets and in rural
industries.
This will help to meet our energy demand for rural masses thus reducing
Biogas Scrubber burden of petroleum demand, moving towards energy security and will improve economic
status by creating employment generation in rural areas.
Biogas Scrubber burden of petroleum demand, moving towards energy security and will improve economic
status by creating employment generation in rural areas.
Cylinders filled from one 120 m3 biogas bottling plant = 8 cylinders /day
(Capacity 6 kg/ cylinder)
As 6 kg CNG cylinder = 6 litre Petrol
So, gas filled in these cylinders will be equivalent to = 6 x 8
= 48 litres of Petrol/day
or Diesel/Petrol savings = 17520 litres/annum.
= 876000 Rs./annum (Approx.)
= 9 lakh Rs./annum
(from one bottling plant)
Therefore, from only one biogas bottling
plant, enriched biogas filled cylinders will be able
to replace fuel worth Rs. 9 lakh annually in the
country. Increasing the number of bottling plants
will subsequently increase the diesel/petrol savings. The whole cost can be recovered within
two-three years from the installation of the plant.
Cost estimate for the proposed technology
120 *** biogas /day plant
1. Biogas scrubbing/ enrichment unit 3,50,000
2. High pressure compressor to fill CNG cylinders 7,00,000
3. CNG conversion kit and filling into cylinders 1,50,000
Total Rs. 12,00,000
Dr. Virendra Kumar Vijay
Center for Rural Development and Technology,
Indian Institute of Technology Delhi,
Hauz Khas, New Delhi- 110 016 India.
Phone: +91-11-26596351 (O), 26591643 (R)
e-mail:vkv...@rdat.iitd.ernet.in
Biogas high pressure cylinder Compressor
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क्या यह देश सिर्फ उन्ही लोगो का है जो सीमाओं पर मर जाते हैं??? सोचिये......
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