C＆C ENGINEERING, INC

CONSULTANT & CONSTRUCTION 

欽總工程股份有限公司

台北市110信義區永吉路179號12樓之1    TEL: 886-2-8787-8763 FAX:886-2-8787-8651

www.cceng.com.tw

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De dioxin Manual
De nox Manual

　

　

　

　

　

　

　

　

　

　

1. De dioxin

　

　

　

　

CKS International Airport No.4 Refuse Incinerator

　

LOCATION PLACE  AT   :      Taoyuan

INSTALLATION  YEAR   :      2003

OPERATION  STATUS    :      STILL RUNNING

　

DETAILED INFORMATION see  DedIOXIN MANUAL

　

CKS AIRPORT No.4 Incinerator P&ID

　

　

　

FRONT VIEW

　

　

SIDE VIEW

　

　

　

C.K.S International Airport

No. 4 Incineration Plant

　

DeDioxin CATALYST

　

　

　

　

CONTENTS

　

1. GENERAL ITEMS *

1.1. Project description *

1.2. PCDD/F - Reduction *

2. DeDioxin CATALYST DESIGN *

2.1. Design Condition *

2.2. Expected performance *

3. DETAIL TECHNICAL SPECIFICATION *

3.1. Catalyst *

3.2. Catalyst Module *

3.3. Soot Blower *

4. SCOPE OF SUPPLY *

5. GUARANTEE *

5.1. Catalyst guarantee *

5.2. Mechanical guarantee *

5.3. Liquidated damage *

5.4. Guarantee conditions *

1. GENERAL ITEMS

　

1.1. Project description

The proposal is based on the technical specification of C & C Engineering, dated August 19th, 2002.

Some parameters are assumed by us. If any different value is required, please let us know to modify the proposal.

By using a DeDioxin catalyst, the PCDD/F is destroyed by catalytic oxidation. No disposal of Dioxin occurs, like using A/C system. The used technology is a proven system with successful operation experience over more than 15 years.

1.2. PCDD/F - Reduction

Organic traces are reduced by catalytic oxidation.

The catalyst decreases the necessary reaction temperature down to 150 - 350 centigrade. Dioxin and Furan compounds are reacting to CO2, H2O, and HCl. The SCR catalyst for NOx removal has been modified to improve the PCDD/F removal efficiency at constant NOx removal efficiency. An example of Dioxin and Furan reduction is given the following :

C12HnCl8-nO2 + (9+0.5n)O2 + (4-n)H2O Þ 12CO2 + (8-n)HCl

C12HnCl8-nO + (9.5+0.5n)O2 + (4-n)H2O Þ 12CO2 + (8-n)HCl

　

2. DeDIOXIN CATALYST DESIGN

　

2.1. Design Condition

The DeDioxin system is designed for the following design condition*3) based on the Heat & Mass Balance submitted with the inquiry dated August 19th, 2002. Values are for one DeDioxin system. Total number of DeDioxin systems are two.

Operation condition

 　

Design Case

 Remarks

Flue gas flow rate *2)

Nm3/h

37,699

 Stream 40+24

Flue gas temperature

°C

240

 Stream 40+24

H2O

vol. %

42

 Stream 40

O2

vol. % dry

9,2

 Stream 40

PCDD/F inlet catalyst *1)

ngTE/Nm3

? 10.0

 Stream 40

PCDD/F in dust

ngTE/g

? 5.0

 Stream 40

Dust

mg/Nm3

< 25

 Stream 40

Remarks : *1) based on 11% O2 dry
*2) based on actual O2, wet condition *3) design based on max. 5% plugging of catalyst surface

　

2.2. Expected performance

The following table shows the expected performance of the DeDioxin system :

Operation case

 　

design

PCDD/F after catalyst *1)

ngTE/Nm3

? 0.4

Pressure loss *2)

mmWC

100

Remarks : *1) based on 11% O2 dry, dust content 5 mg/Nm3
*2) max. 5% plugging of catalyst cross section

　

3. DETAIL TECHNICAL SPECIFICATION

3.1. Catalyst

Catalyst type honeycomb type, based on TiO2 and V2O5
Catalyst model H / PCDDF - LT
Pitch apr. 4 mm
Element arrangement per module 14 x 16 (total 224)
Number of modules per layer 1 per unit
Number of layer per unit 2
Actual size and arrangement subject to change depends on physical space.

　

3.2. Catalyst Module
  • Dimension of one module according to attached principal module drawing
  • Material of module carbon steel
  • Installation Up, down or horizontal flow according to local requirements
    •

    　

    3.3. Soot Blower

    Type Fix Type
    Installation Integrated in catalyst module
    Blowing medium pressurised air
    Air pressure 6 kg/cm2G
    Scope Sootblower and 1 solenoid valve (110 VAC)
    per layer

    　

    4. SCOPE OF SUPPLY

  • A portion : Key equipment to be supplied by supplier which is responsible for the engineering, design and   manufacturing.

    • B portion : By buyer

    C portion : Option

    1

    Catalyst incl. module

    X

    		 Skid mounted

    2

    Installation instruction manual

    X

    		 In English

    3

    Operation instruction manual

    X

    		 In English

    4

    Transportation FOB

    X

    5

    Soot blower

    X

    		 for each layer

    6

    Transportation on site

    X

    7

    Erection

    X

    8

    Air supply

    X

    9

    Insulation

    X

    10

    Supervisor

    X

    		 Based on daily rates

    　

    2. DE NOX CATALYST

    Detailed information in DeNox manual

    　

    照片

    　

    　

    　

    　

    　

    　

    　

    　

    　

     

    　

    LOCATION PLACE  AT   :

    INSTALLATION  YEAR   :

    OPERATION  STATUS    :  STILL RUNNING

    　

    　

    　

    　

    P&ID

    　

    　

    　

    　

    　

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    Update： 18th Aug. 2006

    Contact us       cceng.inc@msa.hinet.net

    C＆C ENGINEERING, INC        12-1, No.179, Yong Ji Rd., Taipei, Taiwan, R.O.C.

    　

     

    T E L  :   886-2-8787-8763          F A X  :  886-2-8787-8651

    www.cceng.com.tw