headerdrawing1.jpg (96365 bytes)

Sulphuric Acid on the WebTM Technical Manual DKL Engineering, Inc.

Knowledge for the Sulphuric Acid Industry Line.jpg (1139 bytes)

Sulphuric Acid on the Web

Introduction
General
Equipment Suppliers
Contractor

Instrumentation
Industry News
Maintenance
Acid Traders
Organizations
Fabricators
Conferences

Used Plants
Intellectual Propoerty
Acid Plant Database
Market Information
Library

Technical Manual

Introduction
General

Definitions
Instrumentation
Plant Safety
Metallurgial Processes
Metallurgical
Sulphur Burning
Acid Regeneration
Lead Chamber
Technology
Gas Cleaning
Contact
Strong Acid
Acid Storage
Loading/Unloading

Transportation
Sulphur Systems
Liquid SO2
Boiler Feed Water
Steam Systems

Cooling Water
Effluent Treatment
Utilities
Construction
Maintenance
Inspection
Analytical Procedures
Materials of Construction
Corrosion
Properties
Vendor Data

DKL Engineering, Inc.

Handbook of Sulphuric Acid Manufacturing
Order Form
Preface
Contents
Feedback

Sulphuric Acid Decolourization
Order Form
Preface
Table of Contents

Process Engineering Data Sheets - PEDS
Order Form
Table of Contents

Introduction

Bibliography of Sulphuric Acid Technology
Order Form

Preface
Contents

Sulphuric Acid Plant Specifications
 

Google Search new2.gif (111 bytes)

 

 


Sulphur Burning
June 22, 2003

Introduction
NOx Formation
Associated Links

Sulphur Furnace
Sulphur Guns

Sulphur Systems


Introduction

IN PROGRESS

 

NOx Formationnox_furnace.JPG (16684 bytes)

The burning of sulphur in air in a typical furnace has temperatures and residence times that result in the formation of thermal NOx.   The figure to the right illustrates the relationship between furnace temperature/SO2 concentration and the relative formation of NOx in the sulphur furnace.  In some processes where high SO2 concentrations are required, the formation of NOx is at its maximum.  At concentrations above 18% SO2, the O2 still present in the gas has a greater influence on the degreeof NOx formation than does the temeprature.  Therefore, by limiting the amount of oygen in the gas, NOx formation can be minimize even though the operating temperature is high.

Special stage combustion techniques and gas recycle can be used to reduce NOx formation.

See also Technology - NOx, NOx in Acid Regeneration Plants