Gas Purification Decarbonization Carbon Dioxide CO2 Removal

• Customization: Available
• Application Fields: Chemical, Food, Medical, New Energy, Petroleum, Pharmaceutical, Biogas
• Certification: CCC, CE, ISO, RoHS, UR
• Model NO.: Decarbonization
• Condition: New
• Gas Type: Carbon Dioxide, Methane, Nitrogen, Oxygen
• Noise Level: Low
• Parts: Adsorption Tower
• Purification Method: Absorption
• Purification technology: Pressurizated Water Scrubber
• Purpose: Gas Purification
• OEM: Customized Products
• Purification: Over 98%
• Gas Flow Rate: 1000~10000 Nm3/H
• Type: Comprehensive Plant
• Transport Package: Wooden Case
• Specification: customized
• Trademark: RELY
• Origin: Qingdao China
• HS Code: 8486909000
• Production Capacity: 60sets/Year
• Package Size: 100.00cm * 100.00cm * 100.00cm
• Package Gross Weight: 120.000kg

Product Description

 

Working Principle

The process theory is based on the difference in solubility between CO₂ and CH₄ in water. By dissolving CO₂ from biogas into water under pressurized conditions, the remaining gas is mostly CH₄, which will be used to produce natural gas. Pressurization will help to increase the gas dissolution, then reducing the consumption of the circulating water. Since CH4 also has limited solubility in water, a stepwise desorption process with partial gas recirculation is employed to improve CH4 recovery, thereby increasing the process's economic value. 

 

Treatment Process

Biogas is compressed to 1.0 MPa via the biogas compressor and fed into the lower section of the water scrubbing tower. The biogas undergoes countercurrent absorption with pressurized circulating water. The CO2-removed natural gas will be collected at the tower top and then injected into the natural gas buffer tank. The natural gas dehydration will go through the molecular sieve system to ensure high product purity. The purified gas is subsequently compressed by the CNG compressor for injection into urban gas pipelines or CNG tanker trucks.

The CO2-rich water from the scrubbing tower bottom is depressurized to 0.6 MPa in the primary flash desorption unit. Utilizing the differing desorption characteristics of CH4 and CO2, partially desorbed gas from the unit's top is recirculated to the scrubbing tower for reabsorption. The remaining CO2-laden water is further depressurized to 2 kPa and enters a secondary desorption tower. Air aeration is applied here to strip residual CO₂ from the water, which is then recycled back to the scrubbing tower.
 

Technical Features

(1) Lower Capital Costs: At 98% CH4 recovery, investment costs are over 20% lower compared to membrane or PSA technologies.
(2) Energy Efficiency: Operational energy consumption does not exceed 0.25 kW·h/Nm³ of biogas at 98% CH4recovery.
(3) Cost-Effective Absorbent: Water, as the absorbent, is inexpensive and readily available.
(4) Dual Functionality: Simultaneously removes CO₂ and partial H2S. When raw biogas contains low H₂S (<200 ppm), no need desulfurization unit.
(5) Ease of Operation: Simple system maintenance and low daily operational cost.
 

Comprehensive Biogas Projects

 

Company Profile

We, Qingdao Rely Environmental Technology Co., Ltd., established in 2015, is a comprehensive environmental enterprise, included product research, process design, system integration, equipment manufacturing, project construction and technical services. We committed to become a professional and reliable supplier of water treatment and organic waste solutions.

The products are widely used for drinking water treatment, industrial water treatment, domestic sewage water treatment, industrial sewage treatment, air pollution control, organic waste treatment and so on. Also supply environmental and efficient water treatment chemical products.

We have good long-term cooperation with Chinese well-known universities and research institutes, assure our strong technical strength and acquired series of technical patent. Our teammates have rich experience and already completed over 100 projects in domestic and foreign, gained highly reputation from local citizens and governments. In Asia, African and South American market, we have made several big landfill leachate treatment projects, treatment capacity from 100MT to 400MT, because of reasonable design, advanced equipment and high level construction, all projects run stable and efficient, proved our strong technical strength and high quality level.

With strong technical strength, we are not only a reliable equipment supplier, but also undertake EPC general contracting projects, EPC Service offered as the following.

1) Freely Preliminary Technical Consultation

2) Treatment Process design

3) Comprehensive Project Equipment Supply

4) Installation Technical Support

5) Debugging Technical Support

Warmly welcome to cooperate with us, for cleaner water, fresher air, more blue sky and more beautiful home!


Biogas Digester Specifications
 

NO	Volume(M^3)	Diameter(M)	Height(M)	Anti-corrosion method	Stirring power (KW)	Mixer material
1	300	7.64	7.2	Electrophoresis/enamel	5.5	304/carbon steel anticorrosion
2	400	8.41	7.8	Electrophoresis/enamel	7.5	304/carbon steel anticorrosion
3	500	9.17	8.4	Electrophoresis/enamel	7.5	304/carbon steel anticorrosion
4	600	9.94	8.4	Electrophoresis/enamel	11	304/carbon steel anticorrosion
5	800	10.7	9.6	Electrophoresis/enamel	11	304/carbon steel anticorrosion
6	1000	11.46	10.8	Electrophoresis/enamel	15	304/carbon steel anticorrosion
7	1500	12.99	12	Electrophoresis/enamel	18.5	304/carbon steel anticorrosion
8	2000	13.76	14.4	Electrophoresis/enamel	18.5	304/carbon steel anticorrosion
9	3000	15.29	16.8	Electrophoresis/enamel	22.5	304/carbon steel anticorrosion
10	3500	16.82	16.8	Electrophoresis/enamel	25	304/carbon steel anticorrosion
11	4000	17.58	17.4	Electrophoresis/enamel	25	304/carbon steel anticorrosion
12	5000	18.34	19.8	Electrophoresis/enamel	30	304/carbon steel anticorrosion

 

World Class Partners

 

World Class Technology Partners



World Class Device Partners


World Class Business Partners

 

Certifications

 

 

FAQ

1. Q: What products do you produe? 

A: We are specialized in all kinds of wastewarer treatment,using all kinds of waste to produce biogas, offering all kinds of biogas related devices and so on. 

2. Q: What information do we need before ordering?
A1: Pls advise your requirements for overall treatment process.
A2: Pls offer the water quality report for influent water or raw water type.
A3: Pls advise the max treatment capacity for design.
A4: Pls advise the quality demands for the effluent water or the usage of effluent water.

3. Q: How long is your lead time?
A: Generally it is 25 days, depends on your needs and project scales.

4. Do you provide OEM service?
A: We provide high-quality OEM services, and also provide buyers customized products.

5. What other services can you provide?
A: Provide free technical support at any time, and also can help you design the whole treatment process of the project.