Small Skid-mounted Type

Shandong Kosman Environmental Technology Co., Ltd. is one of the leading manufacturers and suppliers of small skid-mounted type in China. Please feel free to buy premium equipment for sale here and get pricelist from our factory. All customized products are with high quality and low price.

The small-scale skid-mounted Vapor recovery unit is a comprehensive environmental protection system that highly integrates all functional components required for VOC treatment-such as condensation, adsorption, and membrane separation systems, as well as control systems-onto a single steel skid base. The unit is fully assembled and tested prior to shipment; on-site installation requires only connections to the power supply, oil/gas pipelines, and oil return lines to begin operation.

This product is specifically designed for scenarios involving low-to-medium gas flow rates, intermittent emissions, and dispersed emission points. It starts automatically when loading/unloading operations begin and shuts down automatically upon completion, requiring no dedicated on-site personnel. It is primarily used for VOC waste gas treatment at locations such as gas stations, refined oil depots, chemical storage facilities, terminals, and truck loading racks.

2.1 Mainstream Process Routes

① Combined Condensation and Membrane Separation Process

This process employs a two-stage treatment method-"compression-condensation + membrane separation"-optimized for low-to-medium flow, high-concentration Vapor recovery conditions. Vapor generated during loading are first pressurized by a compressor and enter a multi-stage condensation unit, where over 90% of the vapors are liquefied and recovered. The uncondensed tail gas then enters the membrane separation unit; residual Vapor molecules are concentrated and recycled back to the condensation inlet, while clean air is discharged. The equipment takes only a few minutes to transition from startup to stable operation.

② Combined Condensation and Adsorption Process

This process utilizes a two-stage treatment method: "condensation + activated carbon adsorption." In the condensation stage, a refrigeration compressor is used to condense and recover the majority of the waste gas. Uncondensed gas enters the adsorption section, which consists of two adsorption tanks operating alternately-one adsorbs while the other undergoes desorption-ensuring continuous operation. The refrigeration unit utilizes an air-cooled condenser.

③ Condensation Recovery Process (Light Hydrocarbon Recovery)

This light hydrocarbon recovery process involves pressurizing the feed gas with a compressor and cooling it with a refrigerant, followed by staged condensation and separation based on component volatility (from heavy to light). It is suitable for recovering light hydrocarbons from scattered, low-volume Vapor sources, producing liquefied petroleum gas (LPG) and light oil products. 

2.3 Deployment Methods

Single-unit deployment: A single unit typically handles an airflow of 50–300 m³/h; suitable for a single loading/unloading bay.

One-to-many deployment: A single unit processes waste gas from multiple loading arms sequentially via pipeline switching.

Rapid connection: Compact and lightweight; can be positioned directly using a forklift or crane and quickly connected to the loading arm vent pipe.

The above specifications are for reference only; actual product details prevail.

• Rapid deployment, plug-and-play: Fully assembled and tested prior to delivery; on-site installation requires only power and pipeline connections, enabling operation within one to two days.
• Compact footprint: The skid-mounted design features a compact structure and optimized process layout, significantly reducing the footprint compared to traditional on-site assembled equipment.
• Fast response: Transitions from startup to stable operation in just minutes, perfectly matching the intermittent nature of loading and unloading operations.
• Automated operation: Fully automated PLC control; the system starts automatically when loading/unloading begins and shuts down upon completion, allowing for unattended operation.
• Cost-effectiveness: Taking a gasoline loading station as an example, the value of recovered gasoline typically recoups the equipment investment within a few months to a year; operation consumes only electricity, and the power cost per liter of recovered gasoline is far lower than the value of the gasoline itself.
• Easy maintenance: Membrane modules require replacement only every 3–5 years, and routine maintenance requirements are minimal.
• Inherent safety: Explosion-proof design, suitable for hazardous areas such as chemical loading and unloading zones.

Applicable operating conditions: Low to medium airflow (50–300 m³/h), high concentration, intermittent emissions, and dispersed emission points.

Specific prices and delivery times are subject to actual quotation.

Please contact us for further product details, technical solutions, or to obtain a quote.

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