Recuperative Thermal Oxidizer for Refinery

Introduction

A recuperative thermal oxidizer is a crucial component in the refinery industry. Its primary function is to control and minimize the emission of volatile organic compounds (VOCs) and hazardous air pollutants (HAPs) generated during various refining processes. This article aims to provide a comprehensive understanding of the recuperative thermal oxidizer and its significance in refinery operations.

Operating Principle

Recuperative thermal oxidizers operate based on the principle of thermal oxidation, which involves the combustion of pollutants at high temperatures. This process occurs in a specially designed combustion chamber where VOCs and HAPs are exposed to a combination of high heat and oxygen. The oxidizer’s combustion chamber is equipped with a heat exchanger that facilitates heat transfer from the hot exhaust gases to the incoming process air or fuel stream.

Advantages of Oxydateur thermique récupératifs

• Energy Efficiency: The heat exchanger in a recuperative thermal oxidizer allows for the recovery and reuse of heat energy, resulting in significant energy savings for the refinery.
• Cost-effectiveness: By efficiently reducing VOC and HAP emissions, recuperative thermal oxidizers help refineries comply with environmental regulations, avoiding costly penalties and lawsuits.
• Reduced Environmental Impact: The combustion process in a recuperative thermal oxidizer converts harmful pollutants into carbon dioxide and water vapor, minimizing the environmental impact of refinery operations.
• Flexibility: Recuperative thermal oxidizers can handle a wide range of gas volumes and pollutant concentrations, making them suitable for various refinery processes.

Design and Components

A typical recuperative thermal oxidizer consists of several key components:

1. Combustion Chamber

The combustion chamber is where the actual oxidation of VOCs and HAPs takes place. It is designed to ensure efficient mixing of pollutants with the combustion air, creating an environment conducive to complete combustion.

2. Heat Exchanger

The heat exchanger is the heart of a recuperative thermal oxidizer. It transfers heat from the hot exhaust gases to the incoming process air or fuel stream, preheating them before entering the combustion chamber. This heat recovery mechanism maximizes energy efficiency.

3. Burners

Burners provide the necessary heat for the oxidation process. They are responsible for igniting and maintaining the high temperature inside the combustion chamber, ensuring complete combustion of VOCs and HAPs.

4. Control System

A sophisticated control system monitors and regulates various parameters such as temperature, airflow, and pollutant concentrations. It ensures optimal performance, safety, and compliance with environmental regulations.

Applications in Refineries

Recuperative thermal oxidizers find extensive application across different refining processes, including:

1. Fluid Catalytic Cracking (FCC)

In FCC units, a recuperative thermal oxidizer helps in controlling emissions from regenerator flue gas, which contains volatile hydrocarbons.

2. Sulfur Recovery Units (SRU)

Recuperative thermal oxidizers are used to oxidize sulfur-containing compounds, converting them into sulfur dioxide (SO₂) for subsequent recovery.

3. Delayed Coker Units

Recuperative thermal oxidizers play a vital role in reducing emissions from delayed coker units, which involve high-temperature cracking of heavy hydrocarbon fractions.

Conclusion

The implementation of recuperative thermal oxidizers has significantly contributed to the reduction of VOC and HAP emissions in the refinery industry. Their energy efficiency, cost-effectiveness, and environmental advantages make them indispensable components in refinery operations. By effectively controlling pollutants, these oxidizers ensure compliance with environmental regulations and promote sustainable refining practices.

Présentation de l'entreprise

We are a high-tech enterprise specializing in comprehensive control of volatile organic compounds (VOCs) emissions and carbon reduction energy-saving technology. Our core technologies include thermal energy, combustion, sealing, and automatic control. We have the capability of temperature field simulation, air flow field simulation modeling, performance testing of ceramic regenerative materials, molecular sieve adsorption material selection, and VOCs high-temperature incineration oxidation.

Team Advantages

We have RTO technology R&D center and waste gas carbon reduction engineering technology center in Xi’an, as well as a 30,000©O production base in Yangling. We are a leading manufacturer of RTO equipment and molecular sieve rotary wheel equipment globally. Our core technology team comes from the Aerospace Liquid Rocket Engine Research Institute (Aerospace Institute No. 6). Currently, we have more than 360 employees, including over 60 R&D technical backbones, including 3 senior engineers, 6 senior engineers, and 62 thermodynamics PhDs.

Core Products

Our core products are the rotary valve regenerative thermal oxidizer (RTO) and molecular sieve adsorption concentration rotary wheel. With our expertise in environmental protection and thermal energy system engineering, we can provide customers with comprehensive solutions for industrial waste gas treatment, carbon reduction, and thermal energy utilization under various operating conditions.

Certifications, brevets et distinctions

• Intellectual Property Management System Certification
• Quality Management System Certification
• Environmental Management System Certification
• Construction Industry Qualification
• High-tech Enterprise
• Patent for rotary valve regenerative thermal oxidizer
• Patent for rotary wheel regenerative incineration equipment
• Patent for disc molecular sieve rotary wheel

Choosing the Right RTO Equipment

1. Determine the characteristics of the waste gas
2. Comprendre les réglementations locales et les normes d'émission
3. Évaluer l'efficacité énergétique
4. Tenir compte de l’exploitation et de la maintenance
5. Analyse du budget et des coûts
6. Sélectionnez le type de RTO approprié
7. Environmental and safety considerations
8. Tests et vérifications des performances

Service Process

1. Consultation and evaluation:
   • Initial consultation
   • Site inspection
   • Needs analysis
2. Design and solution formulation:
   • Design proposal
   • Simulation and modeling
   • Proposal review
3. Manufacturing:
   • Customized production
   • Quality control
   • Factory testing
4. Installation and commissioning:
   • On-site installation
   • Commissioning and operation
   • Training services
5. After-sales support:
   • Regular maintenance
   • Technical support
   • Spare parts supply

We are a one-stop solution provider with a professional team dedicated to customizing RTO solutions for our customers.

Auteur : Miya