Ningbo Tenzon Umwelttechnik Co., Ltd ，High-efficiency energy-saving core processing equipment
Products
Top-Loading, Bottom-Discharge Granular Activated Carbon Adsorption Bed (ADS)
Tenzon ADS activated carbon adsorption equipment addresses the pain points of manufacturing plants in the VOCs treatment sector by leveraging its core advantages of “high efficiency and cost-effectiveness + long-term compliance.” The innovative ADS system, featuring top-loading and bottom-unloading of granular activated carbon, improves loading and unloading efficiency by 60% and reduces operational and maintenance costs by 30% compared to traditional honeycomb carbon equipment. With over 800 iodine value and sufficient filling, it ensures adsorption efficiency that exceeds general standards by 30%, meeting the latest environmental protection policy requirements. The modular filter structure made of 304 stainless steel achieves a service life five times longer than that of ordinary carbon steel equipment, and its easy-to-clean design further reduces total lifecycle costs.
Thanks to its enormous specific surface area and rich microporous structure, honeycomb activated carbon can effectively purify organic exhaust air. Its adsorption mechanism is based on physical adsorption: as organic exhaust air pass through the adsorption-desorption bed, intermolecular van der Waals forces attract the organic molecules and cause them to accumulate on the surface of the activated carbon’s micropores. It exhibits superior adsorption capacity for organic substances with high boiling points and large molecular weights. Once adsorption reaches saturation, desorption and regeneration are required; hot air desorption is commonly used. The hot air energizes the organic molecules within the activated carbon’s micropores, enabling them to overcome the adsorption forces and desorb, subsequently being carried out with the hot air. During desorption, the hot air continuously removes the desorbed molecules, creating a concentration gradient. In accordance with Fick’s law, this drives the organic molecules to diffuse from the activated carbon’s micropores into the main gas stream, accelerating desorption. Through this cycle of adsorption and desorption, the honeycomb activated carbon adsorption-desorption bed continuously treats exhaust air, regenerates the activated carbon, and reduces operating costs.
COGAD Granular Activated Carbon Desorption and Regeneration System
The main structure of this unit consists of a desorption and regeneration tank, a catalytic combustion furnace, an induced draft fan, a flame arrestor filter, an electric damper, a pneumatic damper, and an electrical control cabinet. After saturated activated carbon is loaded into the desorption and regeneration tank from the top, the desorption process begins. The exhaust air desorbed from the activated carbon bed enters the main body of the catalytic bed through the air inlet. The exhaust air first passes through the heat exchange chamber of the combustion bed, where it is preheated; it then proceeds to the heating chamber, where heating elements raise the exhaust air to a specified temperature. Once the exhaust air reaches the specified temperature, it passes through multiple layers of precious metal catalysts, where it undergoes catalytic decomposition. The high-temperature purified gas resulting from this decomposition then passes through the heat exchange chamber to preheat the desorbed exhaust air before being discharged from the catalytic bed via the exhaust port.
GADW Granular Activated Carbon Cleaning, Desorption, and Regeneration System
A multi-process, single-tank, centralized granular adsorbent regeneration unit typically refers to a piece of equipment used in the treatment of exhaust air under various operating conditions, where the adsorbent is transferred to a centralized location for regeneration once it reaches adsorption saturation. During use, granular adsorbents not only adsorb VOCs from exhaust air but also adsorb particulate pollutants to varying degrees on their surfaces (in most cases involving particulate-laden exhaust air treatment), which ultimately affects the adsorption efficiency of the granular adsorbent. In such cases, high-temperature desorption alone is insufficient to efficiently regenerate the granular adsorbent; therefore, processes such as washing and decontamination prior to desorption are particularly important. Granular activated carbon is loaded from the top and unloaded from the bottom. After washing and decontamination, desorption and regeneration can be achieved through catalytic combustion or thermal combustion.
MSD Zeolite Rotating Adsorption Bed
Exhaust air containing volatile organic compounds (VOCs) passes through a filter to remove particulate matter and then enters the adsorption zone of the zeolite rotor. The zeolite on the rotor has a highly porous structure capable of adsorbing VOCs from the exhaust air. Once adsorption is saturated, a drive motor rotates the zeolite rotor to the desorption zone, where hot air or other regeneration media is used to desorb the VOCs adsorbed onto the zeolite, forming a high-concentration exhaust air stream for subsequent treatment, such as combustion or condensation. After cooling following desorption, the zeolite rotor returns to the adsorption zone to continue adsorbing VOCs from the exhaust air.
ZDS Zeolite Honeycomb Adsorption Bed
ZDS Zeolite Honeycomb Adsorption Bed is an environmental protection device that utilizes the adsorption properties of zeolite to treat gaseous pollutants. It employs zeolite material with a honeycomb structure; the zeolite consists of numerous small honeycomb cells, which facilitate the uniform distribution of gas within the bed and enhance adsorption efficiency. As a silicoaluminate mineral with a microporous structure, zeolite has a high specific surface area and strong selective adsorption capacity, making it suitable for adsorbing organic compounds and certain inorganic compounds from gases. During operation, the gas containing pollutants passes through the adsorption bed, where the pollutant molecules are captured and adsorbed by the zeolite’s micropores to purify the gas. As adsorption proceeds, the zeolite honeycomb units gradually become saturated; at this point, methods such as thermal regeneration are required to restore their adsorption capacity. During thermal regeneration, the saturated units are heated, causing the contaminants to desorb into the gas stream, where they are captured and treated by downstream equipment. Once thermal regeneration is complete, the thoroughly desorbed units are cooled to room temperature and can then be put back into service for adsorption.
Regenerative Catalytic Oxidizer(RCO)
Exhaust air containing volatile organic compounds (VOCs) first undergoes pretreatment to remove particulate matter and impurities, and then enters the preheating chamber. In the preheating chamber, the exhaust air is heated to a certain temperature, typically between 200°C and 400°C. Next, the preheated exhaust air enters the catalytic combustion chamber, where, under the action of a catalyst, the VOCs undergo an oxidation reaction with oxygen to form carbon dioxide and water, releasing a large amount of heat. The high-temperature gas produced by the catalytic combustion reaction passes through a heat exchanger, where it exchanges heat with the exhaust air entering the preheating chamber. This process lowers the temperature of the high-temperature gas while heating the exhaust air to the temperature required for the reaction. In this way, heat is recovered and reused, thereby reducing the equipment’s operating costs.
Regenerative Thermal Oxidizer（RTO）
Regenerative Thermal Oxidizer（RTO） is a highly efficient system for treating organic exhaust air. During operation, the organic exhaust air first enter a heat exchanger, where they are heated to approximately 800°C through heat exchange, preparing them for the subsequent thorough oxidation and decomposition of volatile organic compounds (VOCs). Next, the preheated exhaust air enters the combustion chamber, where, at temperatures above 800°C, the VOCs are oxidized and decomposed into carbon dioxide and water. The heat generated during this reaction maintains the temperature of the catalytic bed at 800–900°C, facilitating the decomposition of most VOCs. Subsequently, the purified gas passes through the heat exchanger again to recover heat and reduce the temperature of the exhaust air. The heat generated during the oxidation process is stored in specially designed ceramic heat storage media. These media are typically divided into two or more compartments, each of which sequentially undergoes heat storage, heat release, and purging cycles. This cyclic operation is used to preheat the incoming organic exhaust air, thereby effectively reducing fuel consumption required to raise the exhaust air temperature.
Multi-stage Condensation Recovery Equipment
System Configuration: First-stage gas-water finned-tube condenser + high-boiling-point oil scrubber + second-stage finned-tube chilled-water condenser (chiller) + electrostatic precipitator (with a shared automatic electric-heated spray cleaning system), skid-mounted unit, with a shared cooling tower as an external component. The multi-stage condensation and recovery equipment comprises a purification unit, a water-cooling unit, and a water-washing unit; these three units form an integrated process. The purification unit condenses high-temperature oil vapors, oil mist, and oil fumes through two-stage condensation, single-stage oil washing, and electrostatic precipitation, and discharges the purified emissions in compliance with standards. The water-cooling unit supplies low-temperature chilled water to the two-stage condensation process. The water-washing unit performs offline automatic cleaning of the finned tubes inside the condensation tower and the electrostatic fields within the electrostatic precipitator.