20, 000m3/Day Biogas Upgrading Plant

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Product Details

Customization:	Available
CH4 Concentration:	98%
CO2 Content After Purified:	3%

Hunan Along New Energy Technologies Co., Ltd.

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Address

804, BLD 6th, Xiexin Xinglanhui, Guanshaling, Yuelu District, Changsha, Hunan, China

International Commercial Terms(Incoterms)

FOB, CFR, CIF, EXW

Terms of Payment

LC, T/T, Western Union

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Product Description

Company Info.

Basic Info.

Model NO.: ALONG BIOGAS
Gas Usage: Gas Station
H2s Content: Less Than 15ppm
Transport Package: LCL or FCL
Specification: Complete System
Trademark: ALONG BIOGAS
Origin: China
HS Code: 8486909000
Production Capacity: 100 Sets/Year

Product Description

Project informations:
20000 Nm3/day Biogas upgrading Plant;
Address: Haerbing City, Heilongjiang Province,China;
Waste type: Domestic Garbage;

After two-stage desulphurization processes, then go through our GasDec system (Pressurized Washing) for carbon removal, biogas could be upgraded to make CNG, for vehicle or going into national pipeline network.

The gas quality after upgrading as below:

Item		Quality Index	Comments
High thermal value	MJ/m3	>31.4	In the specific geographical area for vehicle driving, under the highest operation pressure, the water dew point shouldn't be higher than -13 degree.C; When lowest ambient temperature lower than -8 degree.C, the water dew point should be 5 degree.C lower than the lowest temperature.
CO2	%	≤3.0
Total Sulfur	mg/Nm3	≤200
H2S	mg/Nm3	≤15
O2	%	≤0.5

Comments: The above data is subject to clients' actual requirements.

The Flowchart of biogas upgrading system:

Procedures of our biogas upgrading system:
1, Gas
Outlet pressure of desulphurization system is about 37 KPa. Water and impurities are removed in the biogas filtration. Then boosted by biogas compressor, the gas goes into absorption tower, flows through the packings in tower from the bottom up, reacts with the absorption solution, which is sprayed down in the tower. The CO2 is absorbed into the liquid while methane would take up most content in the cleaned gas. The product gas is pressurized by CNG compressor at 20 ~ 22 MPa, bottled in the tank lorry for transportation outside.

2, Liquid

The liquid is pressurized by barren-liquor pump, then is sprayed down along the packing layers in the tower through solution-distributor. Then contacts with biogas, absorbs CO2, the liquid becomes pregnant solution. Then goes into regeneration tower for pressure reduction and stripping for CO2 desorption, after cooled, the solution becomes barren liquor. The cleaned barren liquor is pressurized and delivered to absorption tower for recycling.

The CO2 can be treated for producing food-grade or industrial grade.

Main equipment list of our upgrading system:

Item	Product	QTY	Comments
Equipment
1	Primary Filter	1 set	Inclusive SS304 internals
2	Wety desulphurization system	1 set
3	Dry desulphurization system	1 set
4	Biogas decarburization system	1 set
5	Dryer	1 unit	TSA
6	Biogas Compressor	2 units	With explosion-proof variable frequency motor
7	CNG Compressor	2 units	With explosion-proof variable frequency motor
8	Gas Dispenser	2 units
9	Pipeline, valves, connection fittings,etc	1 batch	Subject to design
10	Others	1 batch
Instruments, controlling systems
1	On-line analyzer (O2)	1 set	Feed gas
2	On-line analyzer(CH4/CO2/O2)	1 set	Product Gas
3	Flow meter	2 pieces
4	Liquid level transmitter	2 set
5	Pressure transmitter	1 batch
6	Temperature sensor	1 batch
7	Temperature gauge	1 batch
8	Pressure gauge	1 batch
9	Pressure regulation valve bank	2 set
10	Controlling System	1 set	PLC
11	Cables, wires	1 batch
12	Others	1 batch