LQ-ADW-RTO Zeolite wheel +RTO System Manufacturers, Suppliers - Lv quan Environmental Protection Engineering Technology Co., Ltd

LQ-ADW-RTO Zeolite wheel +RTO System

Concept Of Zeolite Wheel+RTO System Using zeolite wheel to adsorb organic waste gas, the low concentration and high air volume waste gas is concentrated into high concentration and small air volume, thereby reducing the equipment cost and operating cost, and achieving efficient VOC treatment. The RTO uses high temperature gas heat exchange to achieve continuous adsorption and desorption processes.

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Operating Principle

The treated air containing VOCs passes through a pre-filter and is sent to the treatment area of the concentrator rotor. In the processing area, VOCs are adsorbed and removed by the adsorbent, and the purified air is discharged from the processing area of the concentration wheel. The VOCs adsorbed on the concentration wheel are desorbed and concentrated (5~30 times) in the regeneration area through hot air treatment. After the highly concentrated VOCs are desorbed, they are preheated in the RTO heat storage chamber and the high-temperature VOCs are sent to the combustion chamber for complete combustion, oxidizing and decomposing into CO2 and water. The high-temperature gases generated by oxidation flow through specially designed ceramic heat storage bodies, causing the ceramic bodies to heat up and "store heat", which is used to preheat subsequent organic waste gases entering the system, thereby saving fuel consumption for waste gas heating. The ceramic heat storage body should be divided into two or more zones or chambers, each heat storage chamber experiencing a continuous cycle of heat storage-release-cleaning, and working continuously.

Characteristics And Specifications Of Voc Concentration Equipment

High purification efficiency: The adsorption efficiency of the wheel can reach up to 98.5% (excluding special components).

High desorption efficiency: Organic compounds with boiling points below 220°C can be almost completely desorbed.

Small footprint: Compared with similar adsorption-based equipment, the concentration wheel's footprint is relatively small.

Low fire hazard: Compared with activated carbon adsorption, the zeolite wheel is non-flammable and there is no risk of ignition during the desorption process.

Fast adsorption and desorption: It has properties such as short adsorption time, easy saturation, high desorption efficiency, and short cycle.

The Selection Conditions And Characteristics Of RTO

Low energy consumption	Inlet gas concentration at 1500~2000mg/m3 basically maintain self-ignition, no fuel replenishment
High efficiency of waste heat recovery	Adopting new material (thermal storage ceramic) technology, the heat recovery efficiency is 95%
High purification efficiency	The efficiency can reach up to 98% or more when using ordinary lifting valve, and up to 99.3%6 or more when using double eccentric structure closed valve
Easy to operate	Adopt traditional electric control or industrial controller control, one key to start and stop after the parameters are adjusted, realize unattended supervision

Structure form	Tower type fixed bed		Round Multi-Bed
Structure form	Three tower structure	Five-tower structure	Rotary structure	Multi-valve structure
Maximum air handling capacity	≤65000m³ /h	≤100000m³ /h	≤100000m³/h	≤100000m³/h
Floor space	Large	Larger	General	General
Purification efficiency	≥90-98%
Valve structure form	Poppet valve/closed butterfly valve	Poppet valve/closed butterfly valve	Rotary valve	Airtight Butterfly Valve
Valve drive form	Pneumatic	Pneumatic	Servo motor drive	Pneumatic
Heating method	Natural gas / organic solvent waste liquid
Blowback air mode	Positive pressure reverse blowing/negative pressure reverse absorption
System air inlet mode	Generally full positive pressure air supply (i.e. positive pressure in the reaction area)
Safety design	Generally choose pressure/ temperature relief valve and pop-up explosion relief door, RTO total inlet set standard flame arrestor

1. When the project site is located in extremely cold areas (< 10’c), consideration should be given to the possibility of compressed air condensation reputable to the icing of gas pipelines or cylinders. In such cases, pneumatic drive can be replaced with electric drive.

2. Foreanic solvent waste liquid is used, it is necessary to provide its composition and calorific value for the selection of combustion equipment. Electric heating can be used when the air volume is less than or equal to 5000 Nm³/h.

Selection Criteria

1. If the exhaust gas contains corrosive components such as sulfur and chlorine, this must be communicated during the selection process. Corrosion-resistant materials such as SUS2205 or higher must be used for processing and manufacturing to ensure proper treatment of such gas in the downstream process.

2. The mixed concentration of exhaust gases entering the heat storage high temperature incineration equipment should be within 1/4 of the lower explosive limit (LEL) range.

3. The maximum operating temperature for the heat storage high-temperature incineration equipment is less than 960℃. High-energy materials and high-concentration gases must be treated with dilution. If there are special requirements, they should be clearly stated to make specific demands during insulation design.

4. The gas entering the heat storage high-temperature incineration equipment must not contain dust particles or oil mist that can cause blockages or backfire, in order to prevent flashing and blockage of the thermal storage ceramic.

5. Some regions have specific nitrogen oxide emission requirements for high-temperature incineration equipment, which must be communicated to the purchaser during the procurement process. Low-ammonia combustion systems should be used for the combustion equipment, and if the exhaust gas contains a high concentration of nitrogen, even a low-nitrogen combustion system may not meet the emission standards and will require additional denitrification treatment.