Biogas purification pretreatment/Biogas Scrubber/ Dehydration and desulfurization tower

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US $100-1,000 / Sets | 1 Set/Sets (Min. Order)
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Quick Details
Brand Name:
Model Number:
Place of Origin:
Shandong, China (Mainland)
Biogas purification, Biogas pre-treatment/Water vapour & H2S Scrubber
Calory (J):
Hydrogen Content (%):
Methane Content (%):
Nitrogen Content (%):
Sulphur Content (%):
Moisture & H2S filtration before heat or power generation
Biological or Dry desulfurization(Fe2O3)
Dehydration method:
Condensation method or cyclone type
Fe2o3 replace cycle:
more than 10000 hours
Easy installation
According to biogas plant size
Supply Ability
Supply Ability:
20 Set/Sets per Month
Packaging & Delivery
Packaging Details
Tank tower packaged with packing sheet /Felted fabrics, other parts in wooden box
Qingdao, China
Lead Time :
15-30 days according to order
Biogas purification

Biogas Purification Pretreatment System / Biogas Scrubber /

Biogas Dehydration and desulfurization equipment


The primary objective of biogas purification is to remove biogas components like H2S, water vapour etc. These components not only cause environmental hazard and processing problems but also dilute the energy density of biogas.



Biogas Plant Flow Chart: 




Technological process:


Raw Biogas


 Dehydration & Desulfurization


Flame arresting and gas boosting


 CHP - Heat and Power Cogeneration



1. Gas-liquid separator/ Water vapour scrubber/ Biogas dryer



In the raw biogas produced in the process of anaerobic fermentation, there is massive water vapour mixed. Due to temperature/pressure change and dew point depression during pipe transportation, water vapour is condensed into water which caused two-phase flow in delivery system. System resistance increases and the pipeline is even declined to be blocked off. The function of gas liquid  separator is to filter moisture/water vapour by the method of cold separation, thus eliminating the hidden danger during the biogas transmission.







Our company own designed high-efficiency gas-water separator is based on the principle of cold separation method and in addition developed a unique packing system through which the gas and liquid two-phase disperse into many tiny bubbles, droplets or liquid film. This increases the contact area of gas/liquid and higher removal efficiency of gas dehydaration.


In addition, we've also designed cyclone style gas-liquid separator for your choice.

Pls contact us for more information.





a)     Moisture removal rate: more than 98%.

b)     The filler has good chemical stability free from gas or liquid corrosion and also has a certain flame arrest effect.

c)     Suitable designed void content can reduce gas resistance;

d)     Good mechanical strength. 



2. Biogas desulfurization tower/ H2S Scrubber


H2S is a toxic and corrosive gas and its concentration in raw biogas may vary based on the feedstock. H2S in biogas has to be reduced to harmless level to protect the downstream processes and equipments as well as toxicity to human health.


Our dry desulfurization equipment can used in the purification system of biogas, farm, starch, papermaking, sewage treatment, alcohol, chemical fiber, pharmacy, fertilizer, coking, landfill, coal gas, natural gas, ceramics, food, maize further processing, citric acid, and other industries.






The desulfurization tower makes use of high effective desulfurizer to remove H2S. Biogas is led through a media composed of woodchips and iron oxide or hydroxide. H2S is removed as iron oxides react with sulfides (H2S) to produce iron sulfide. Bed can be regenerated several times before requiring replacement.

Anticorrosion treatment:


The inner surface of desulfurization tower uses advanced anti-rust technology making the combination of epoxy resin anticorrosive coating and tank body more strengthen, which prolongs the lifetime of equipment. The H2S content in the device outlet is low to less than 200mg/Nm3 up to emission standard.


Performance and Characteristics:


1.    Simple structure, convenient for operation;

2.    No need of staff on duty, refueling at fixed period, one for use one for standby.

3.    Compared with wet method, need refueling at fixed period

4.    High precision of desulfurization.




Company Information

About us                              

Shandong Better New Energy Technology CO., LTD is a technology-oriented and fast-developing company which integrates R&D, design, manufacture, sales and customer service. Our company was wholly funded by SHANDONG BETTER ELECTRONICS CO., LTD which was established in 1987 and covers an area of 50,000 square meters and possess total assets of more than RMB 130 million. With rich industry experience, strong R&D and efficient manufacturing, BETTER has passed the evaluation of ISO9001 Quality System Management Certification and has obtained 19 national patents and lots of provincial awards by Chinese goverment.



New century, creat new BETTER. We have devoted to specialize in full automatic equipments for Biogas engineering, biogas assembling tank (enamel assembled tank, electrophoresis tank), dual membrane flexible gas storage cabinet/bag, integrated biogas anaerobic digester with double membrane roof, biogas devulcanizer and dehydrating equipment, biogas boiler, biogas generator, methane booster fan, flame arrester, biogas flowmeter, solid-liquid separator and biogas torch with totaly more than a dozen categories and hundreds of products.


Our products are widely used in animal husbandry, straw fermentation and gasification, domestic waste, sewage disposal, natural gas, power plant, distillery, food factory, chemical plant and other industries. We have helped hundreds of users achieve intelligent automatic control and have obtained favorable comments from customers.  



With “honesty in career” business dealing and the philosophy of harmony, endeavour, practicality and innovation, we have always uphold “high-quality products and excellent services” for customers. Let’s join in hand to create a glorious future.