RENEWABLE ENERGY AND ENERGY CONSERVATION TECHNOLOGIES
FACILITY AND TECHNOLOGIES OF THE BIOGAS UTILIZATION
Description
Biogas (methane (СÐ4) and carbon dioxide (CO2)
gaseous mixture) is fuel gaseous mixture with СÐ4 >50%.
Using of the biogas is important task for solving
problems: ecological – limitation of biogas atmospheric
emission, economical – additional energy source. Facility
and technologies of the biogas utilization was developed
for solving of these tasks.
There are 6 separation modules, which work in turns,
thus ensuring the continuity of the technological process.
Depending on composition of the input biogas and
requirements for the end product, facility can consist
from all modules or only from one module (separation
one).
Facility allows
to
separate biogas
into
the
components:
(cid:190) liquefied almost pure methane in standard vessels
with volume 40-50 liters under the pressure 20 MPa
and with purity 96%;
(cid:190) liquid carbon dioxide at the similar vessels under
the pressure 5÷6 MPa;
(cid:190) solid carbon dioxide (dry ice).
Technical parameters of the facility:
(cid:190) overall dimensions, mm – 1700x1050x650;
(cid:190) productivity in biogas terms – 5 nm3/hour;
(cid:190) productivity in CH4 terms – 2,7 nm3/hour at P=0,4MPa;
(cid:190) productivity in CO2 terms – 1,8 nm3/hour at P=0,1MPa;
(cid:190) admixtures of the other components in the separated
methane and carbon dioxide - ~4%;
(cid:190) facility weight - ~150 kg.
Pressure swing method was used for this work.
Method uses different concentrations of the biogas
components in the gaseous phase at the upper and lower
pressure level in adsorber, that is caused with different
adsorbability of the carbon dioxide and methane. When
gaseous phase is sampled from the adsorber at the upper
pressure level, we obtain mixture enriched with less
sorbed component – methane, when it is done at the low
pressure level – more sorbed carbon dioxide.
Facility block scheme, its general view and motor-
generator are shown at the pictures.
Innovative Aspects and Main
Advantages
The main innovative aspects are using of the Pressure
Swing Method (PSM). The small cycle duration and
process
temperature allow making mobile
separation facilities. These facilities combined with
motor-generator, working at the produced methane,
ensure autonomous facility operation.
room
Fig. 1. Block diagram of the autonomous complex
facility for biogas utilization.
Fig.3. Motor-generator
Fig. 2. General view of the
model of the experimental-
industrial facility for biogas
separation
Area of Application
The facility may be using in different fields:
(cid:190) Agriculture
(cid:190) Factories of the food industry.
(cid:190) Plants of biological purification foul water.
(cid:190) Solid domestic waste dumps.
In one word anywhere where is organically waste.
Stage of development
Development phase – laboratory tested, available
for demonstration
Patented: Patents of Ukraine: U 38746 A, bulletin
â„–4, 2001; U 44512 A, bulletin â„–2, 2002; 8870,
bulletin â„–8, 15.08.2005
Contact details:
Institution: National Science Center "Kharkov Institute
Principal Contact: Khazhmuradov Manap A.
Address: 1 Akademicheskaya St., Kharkiv, 61108,
of Physics and Technology"
Ukraine
Tel.: 380-57-335-68-46
Fax: 380-57-335-35-33
E-mail: khazhm@kipt.kharkov.ua
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