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Characterization and Failure Analysis of Ceramic Filters Utilized for Emission Control During Coal Gasification.  Final Technical Report

Huque, Ziaul
Mei, Daniel
Zhou, Jianren

Prairie View A&M University

In this pdf format, this document has 76 pages and is 2.68KB.

Table of Contents

List of Graphical Materials

7

Executive Summary

8

1.0

Introduction

10

1.1

Contract Objectives

10

1.2

Background

10

2.0

Results and Discussion

12

2.1

Characterization of Filter Properties and Filtration Pressure Field

12

2.1.1

Summary Of Characterization Of Ceramic Candle Filters

12

2.1.2

Discussion On Particulate Filtration Testing

12

2.1.3

Description Of Particulate Filtration Test Facility

13

2.1.4

Experimental Procedures for Characterizing Ceramic Filters

15

2.1.5

Results On Characterization of Ceramic Filter Properties

18

2.2

Material Laboratory Analysis on Used And Unused Filters

20

2.2.1

Summary Of Material Laboratory Analysis

20

2.2.2

Experimental Procedures

21

2.2.3

Results And Discussion On Material Laboratory Analysis

22

2.2.4

Conclusions Of Material Laboratory Analysis

24

2.3

Thermal Numerical Simulation on Back Pulse Cleaning

26

2.3.1

Thermal Analysis on a Single Filter with Cold Back Pulse

26

2.3.2

Recommendation on Future Thermal Analysis

27

2.4

Parametric Study on Back Pulse Cleaning Mechanism

28

2.4.1

Introduction on particulate filtration testing campaign

28

2.4.2

Key parameters affecting particulate filtration process

28

2.4.3

Study on dust cake dislodging via back pulse technique

30

2.5

Failure Analysis on Ceramic Filters

37

3.0

Conclusion

41

4.0

References

42