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Carbon Steel Voc Treatment System , Absorption Type Vapour Recovery Unit

Carbon Steel Voc Treatment System , Absorption Type Vapour Recovery Unit

Carbon Steel Voc Treatment System , Absorption Type Vapour Recovery Unit

Product Details:

Place of Origin: China
Brand Name: QIYAO
Certification: ISO, ASME

Payment & Shipping Terms:

Minimum Order Quantity: 1 set
Price: Customized Product, Quoted Case By Case
Packaging Details: Seaworthy packing
Delivery Time: 120 days
Payment Terms: T/T, L/C
Supply Ability: 20 sets per year
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Detailed Product Description
Material: Carbon Steel, Stainless Steel Application: For Vapor Recovery Of Highly Volatile Liquid During Loading/unloading Process
Efficiency: Over 97% Valuable Composition In The Vapor Can Be Recovered Service: Design, Engineering & Supply With Site Supervision
Customized: Available

Carbon Steel Voc Treatment System , Absorption Type Vapour Recovery Unit

 

Absorption Type Vapor Recovery Unit

 

* Summary

 

Vapor Recovery Unit is to collect the organic vapor discharged during the manufacturing, storage, loading and unloading processes of various industries and recycle it by means of condensation, adsorption, absorption, membrane separation, etc. so as to finally satisfy the emission standards and create certain economic benefits for the end user.

 

The Absorption Process is suitable for treatment of low & medium concentration oil vapor. As long as proper absorbent is available at site, absorption process is recommended owing to the easy operation and reduced investment.

 

Though usually applied in combination with other process, the absorption process can also be solely applied for treatment of substances easily soluble in water, acidic or alkaline liquid. For instance, it can use water to handle waste gas containing methanol, acetic acid, ammonia, acetone, etc. to make it acceptable for the emission standard.

 

Principle / Flow Procedure

Taking advantage of different solubility of different compositions, The Absorption Process can separate those easily soluble compositions from others. Most light hydrocarbons dissolve into the absorbent and waste gas containing little light hydrocarbons is discharged from the top of the tower. For different types of oil vapor, the absorbents can be water, acidic aqueous solution, alkaline aqueous solution, gasoline, diesel and heavy hydrocarbon, etc. More explanation about the process will be given taking methanol recovery with water absorption technology for example.

The oil vapor after flame arrester is pressurized by an induced fan and then delivered into the absorption tower, where it contacts the absorbent liquid (water) flowing in opposite direction for vapor-liquid equilibrium. Acceptable emission is obtained after multi-stage equilibrium and discharged from the top, while the liquid with rich methanol leaves from the bottom.

 

 

* Structure & Parameter (typical project)

Application Vapor recovery
Equipment name Vapor Recovery Unit
Model QY/VR series
Capacity 50-5000 m3/h
Structure Skid-mounted
Material Carbon steel
Fabrication code GB150.1~4-2011
Design code

GB50759-2012

Q/SH0117-2007

Design pressure Micro positive pressure
Design temperature Ambient
Applicable exhaust gas Low & medium concentration oil vapor
Type of absorption tower Atmospheric pressure filling tower
Type filling High efficient filling in order
Control method PLC automatic control
Main measuring point Pressure signal, level signal, flow signal
Main chain alarm system Pressure signal for interlocked blower start-up/shut down; Level signal for interlocked drain pump start-up/shut down; Flow signal to control opening of absorbent liquid valve
Connection Bolted
Seal Flange
Utility consumption

Instrument air: ≤10Nm3/h

Absorbent liquid: relevant to capacity

Emission

Benzene ≤ 4mg/m3,

Toluene ≤ 15mg/m3,

Xylene ≤ 20mg/m3,

Ethylbenzene ≤ 100mg/m3,

Acetonitrile ≤ 50mg/m3;

Non-methane total hydrocarbons:

- Removal rate ≥ 97%,

Concentration of emission ≤ 120mg/m3

Noise ≤ 85dB (A)
Stack height 15 m
Service life 25 years
Spare parts Available for 2 years
Warranty 12 months after start-up of 18 months after arrival of equipment
Scope of work / service Full equipment package, supervision for site installation & commissioning, training for operation
Response upon request Within 12 hrs
Project owner Youyue Storage (Shanghai) Co., Ltd.

 

 

* Advantage

  1. Software: ASPEN for process calculation, SW6 for equipment calculation, CADworx for design of the skid;
  2. High efficiency structured packing and low consumption of absorbent;
  3. High recovery efficiency and acceptable emission from tower top;
  4. Delivered as a skid to reduce site installation work;
  5. Fully sealed blower and flanged connection in the skid to achieve zero leakage;
  6.  ExdIIBT4 or ExdIICT4 explosion proof.

 

* Applied data for an typical project

  • Concentration of emission: Compliance with GB31570-2015 <Standard of pollutant emission for oil refinery industry>, GB31571-2015 <Standard of pollutant for petrochemical industry> and the related local standard.
  • Details:

Benzene ≤ 4mg/m3,

Toluene ≤ 15mg/m3,

Xylene ≤ 20mg/m3,

Ethylbenzene ≤ 100mg/m3,

Acetonitrile ≤ 50mg/m3;

Acetone ≤ 100mg/m3,

Phenol ≤ 20mg/m3,

Methanol ≤ 50mg/m3;

Non-methane total hydrocarbons:

          ---- Removal rate ≥ 97%,

          ---- Concentration of emission ≤ 120mg/m3;

Noise (1m from VRU): ≤ 85dB (A)

Height of exhaust port: ≥ 15m.

 

 

Carbon Steel Voc Treatment System , Absorption Type Vapour Recovery UnitCarbon Steel Voc Treatment System , Absorption Type Vapour Recovery Unit

 

 

 

Contact Details
Shanghai Marine Diesel Engine Research Institute

Contact Person: Mrs. Tan Ling

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