High Performance 97% Purity Membrane Vocs Treatment Plant for Dichloroethylene Recovery

• Customization: Available
• Application Fields: Chemical
• Certification: CE, ISO
• Model NO.: customized
• Condition: New
• Control System: Fully Automatic Control
• Installation Type: Skid-mounted
• Material: Stainless Steel
• Noise Level: Low
• Parts: Membrane
• Purpose: Gas Recovery
• Feature: Description
• Membrane Types: Spiral-Wound and Stacked Membranes
• System Recovery Rate: Spiral-Wound and Stacked Membranes
• System Operational Flexibility: 50-200%
• Recovery Period Generally: 3-12 Months
• Ethylene Recovery Rate: 80-90%
• CH4 Recovery Rate: 70-80%
• Machine Size: Large
• Usage: Organic Steam
• Transport Package: Wooden Case or Container
• Trademark: WOBO
• Origin: China
• HS Code: 8419609090
• Production Capacity: 100set/Year, 20kg/H-10000kg/H.

Product Description

Membrane-assisted Organic Steam Recovery (Membrane steam organic recovery/ Membrane-based organic steam reclamation)

Product Description

Membrane separation works by utilizing the different permeation rates of organic hydrocarbons and inert components in polymer membranes to separate mixtures. Under a certain partial pressure difference, VOC (volatile organic compound) molecules preferentially pass through the polymer membrane, while inert components such as air are retained and discharged. This process leads to the concentration and enrichment of organic hydrocarbons.

After heat exchange, the non-condensable gas enters the membrane unit. Since VOC molecules dissolve and diffuse in membrane materials at a faster rate than air or nitrogen, the pressure difference across the membrane system drives VOCs to accumulate on the downstream side of the membrane, while the upstream side yields a low-concentration gas stream.

Feature	Description
Membrane Types	Membrane Types
System Recovery Rate	Typically above 90%
System Operational Flexibility	50-200%
Recovery Period Generally	3-12 months
Ethylene Recovery Rate	80-90%
CH4 Recovery Rate	70-80%

Technical Principle

Polypropylene Industry Working principle overview

Key features

  In intermitent smal-scale polypropylene production, the use of compressionicondensation methods can reduce propylene consumption from 1.12-1.15 to1.07-.09 for each ton of polypropylene produced. Nevertheless, for every ton of polypropylene produced, a significant amount of propylene monomer, rangingfrom 70 to 90 kg, is still lost. In a 200, 00-ton BP.Amoco gas-phase propylene polymerization process, over 2,700 tons of propylene are lost annually during the polymerization reaction andresin degassing processes.

* Propylene Monomer Recovery Rate Exceeding 95%;
* Significant Reduction in Consumption for Small-Scale Production Processes; 
* Recycling of Purified Nitrogen to 97-99% Purity.

Polyvinyl Chloride (PVC) Industry In the production process:

Key features

In the chloroethylene production process using the calcium carbide method, during the chloroethylene distillation and purification process, a distillation tail gas is separated. 
  Due to limitations in the operating pressure and temperature of the tail cooler, the tail gas typically contains 6-30% chloroethylene monomers. This not only pollutes the surrounding atmospheric environment but also leads to an increase in the consumption quota of calcium carbide and wastage of raw materials. As a result, it raises the production costs in the polyvinyl chloride (PVC) industry.

* Recover 95% of vinyl chloride and 85% of acetylene from the distillation off-gas
* Significantly reduce the treatment load on adsorption or absorption devices
* Reduce carbide consumption per ton of PVC by 30 kg
* Eliminate the need for a tail gas condenser or lower the operating temperature of the tail gas condenser

Polyethylene Industry In the BP Innovene polyethylene production process:

Key features

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In the polyethylene production process, during the synthesis of HDPE and LLDPE, the single-pass conversion rate of ethylene monomer is less than 100%. Unreacted ethylene monomer and other hydrocarbons are sent back to the reactor by the recycle compressor for further reaction. To prevent the accumulation of inert gases such as nitrogen during this recycling process, a portion of the recycle gas is vented as purge gas. This purge gas contains 40% ethylene and 20% other hydrocarbons, resulting in significant economic loss.

Ethylene Glycol Industry

1.Continuous Discharge in Membrane Recycling System;
2.Recovers Over 90% of Ethylene from Previously Released Gases;
3.Inert Gas Emission Rate Exceeding 80%;
4.Annual Economic Benefit of ¥1 Million;
5.Investment Payback Period of Approximately 8 Months.

Organosilicon Industry

1.Operating Pressure: 0.9 MPa (G);
2.Tail Gas Emission Temperature: -5 to -10ºC;
3.Investment Payback Period: Less Than 6 Months;
4.Annual Economic Benefit: Over ¥2 Million;
5.CH3Cl Monomer Recovery Rate in Emissions: Over 90%.

Project Case

Capacity: 3500 Nm3/h
Emission level:
NMHC:≤70 mg/m3
Toluene:≤10 mg/m3
Xylene:≤20 mg/m3

Capacity: 600 Nm3/h
Emission level:
NMHC: ≤ 120 mg/m3

Application: Gasoline station
Capacity: 3~15 Nm3/h
Emission level:
NMHC: ≤ 10 mg/m3

Capacity: 900 Nm3/h
Emission level:
NMHC: ≤ 120 mg/m3
Toluene: ≤ 15 mg/m3
Xylene: ≤ 20 mg/m3

Product Application

Company Profile

WOBO Group has been engaged in the cryogenic and air separation industry for decades. It operates a variety of products such as cryogenic vessels, air separation equipment, chemical storage and transportation equipment, etc. It has always been our aim to provide customers with the best products and solutions.

WOBO Group has technically cooperated with a number of large-scale famous membrane manufacturers, and jointly developed with well-known domestic universities and colleges, and established a comprehensive laboratory for production inspection and testing. At present, WOBO membranes have been applied in more than 30 countries around the world.