Stable Operation Of An RTO System In A Fine Chemical Project

(MENAFN- GetNews) A fine chemical company in Shandong is dedicated to the R&D and production of thermal paper additives, including color developers, sensitizers, and related products. The company also produces magnesium sulfate as a by-product. As a high-end, environmentally friendly enterprise in the fine chemical industry, it generates a significant amount of VOCs waste gas during production.

01. Waste Gas Parameters

Main pollutants: Methanol, ethanol, toluene, sulfuric acid mist, polyethylene glycol, ethylene glycol, phenol, m-cresol, m-aminophenol, dichloroethane, phenolic compounds, and particulate matter.

Other parameters:

• Air volume: ≤ 50,000 m3/h
• Concentration: ≤ 5,000 mg/m3
• Temperature: Ambient
• Pressure: Slight positive pressure
• Oxygen content: ≥ 6%

02. Design Solution

The waste gas is first treated in an alkaline scrubber to remove inorganic acidic components and dust particles. It then passes through a dehumidification tower to remove moisture.

After pretreatment, a 50,000 m3/h Regenerative Thermal Oxidizer (RTO) is used as the core unit for Vocs Treatment. The treated gas is further processed through a surface condenser, activated carbon adsorption, and alkaline scrubbing before being discharged through a chimney in compliance with emission standards.

03. Project Advantages

Advanced Regenerative Thermal Oxidizer TechnologyThe third-generation RTO achieves a purification efficiency of up to 99.5% and a thermal efficiency of 96%.

Quick-Change Regenerative Media DesignTwelve maintenance doors are installed above the bottom layer of ceramic media, allowing easy cleaning and replacement.

Efficient and Stable Pretreatment Alkaline scrubbing combined with a multi-layer high-efficiency dehumidification system ensures stable operation.

Patented End-Face High-Temperature Valve Features include improved sealing performance, lower leakage rate, reduced flow resistance, enhanced throughput, and higher safety.

Advanced Safety Control System Equipped with 25 core safety measures to eliminate potential risks fundamentally.

High-Level AutomationThe entire system operates fully automatically with unattended operation capability.

04. Performance Results

The project has been successfully commissioned and is now in stable operation.

• VOCs emissions after treatment are consistently ≤ 45 mg/m3, meeting emission standards
• Temperature difference between RTO inlet and outlet is ≤ 30°C
• Minimal natural gas consumption during operation
• Improved overall energy efficiency
• The system demonstrates continuous and stable performance

The project adopts the“Toptank” series Regenerative Thermal Oxidizer developed by the company, featuring high system integration and reliable long-term operation.

About the Company

Xi'an Yurcent Environmental Technology Co., Ltd. is a high-tech enterprise specializing in comprehensive VOCs waste gas treatment, energy-saving technology development, and equipment manufacturing.

• Production area: 35,000 m2
• Annual capacity: 300 sets of rotary valve Regenerative Thermal Oxidizer systems
• Over 70 patents

The company has extensive experience in waste gas treatment across fine chemical sectors such as dyes, additives, lithium batteries, synthetic resins, pharmaceutical intermediates, pesticides, and storage emissions. With over 150 chemical industry projects, it has established benchmark solutions for comprehensive VOCs treatment.

The company is committed to helping enterprises achieve ultra-low emissions and meet advanced environmental standards.

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