Optimizing Waste Gas Treatment Systems at Point-of-Use

Optimization of Waste Gas Abatement at First Hand

High-tech industries are usually characterized by short innovation cycles. Along with designing new waste gas treatment systems, DAS Environmental Expert product developers continue optimizing and enhancing existing systems once the development process is complete. For the client, process optimizations very often cause changes in composition and quantity of process waste gases, thus leading to changing requirements regarding the waste gas treatment system. Changing industry standards for system components and modules also require continuous and further development in waste gas treatment systems. 

To ensure each client receives continued development and improvement of our waste gas treatment solutions, we have established a CIP (Continuous Improvement Program) process, which enables the enhancement of system types or system modules through changes, supplements and new arrangements of single components and software. The CIP process monitors the entire system’s life cycle, from product development to commissioning and maintenance, supported by on-site FTIR (Fourier Transform Infrared Spectroscopy) measurements.

Our CIP Process for the Optimization of Waste Gas Treatment Systems

The improvement of our waste gas treatment systems is comprised of retrofitting existing systems and redesigning product families. Important to efficient optimization are client feedback and field data, which are regularly gathered and consolidated through our service and product management. We test larger technical changes either at our Dresden laboratory or, after consultation with our client, directly on site. Before adapting the system, documenting, or implementing the system’s improvement, we issue a notification of change to the client.

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Optimizing Waste Gas Treatment Utilizing FTIR Measurements

To monitor the client’s waste gas treatment systems, DAS Environmental Expert utilizes FTIR (Fourier Transform Infrared) measurements. Our in-house FTIR spectrometer measures the waste gases’ in-and-outflowing concentrations at the process line. There are three different strategic reasons to perform this measurement:

1. Measuring the Efficiency of the Waste Gas Treatment System

In this procedure, the mass flow or mass concentration is measured after the waste gas treatment and by means of a specific process gas flow defined by the MFC (Mass Flow Controller). This procedure allows for efficient measurement of the waste gas treatment systems, and is a fast and easy measuring procedure. In addition, handling concentrated waste gases can be avoided.

2. Measuring the Overall Abatement Efficiency

This procedure measures the mass flows of process waste gases after treatment. It allows for measuring overall production emissions and the atmospheric load; process gases and bi-products are also captured. This measuring procedure is simple and fast, and the measurement results show the entire separation efficiency of the processes and waste gas treatment system (process system + pump + waste gas treatment). It does not, however, offer detailed particulars regarding the efficiency of the waste gas treatment system.

3. Measuring Emissions

This measuring procedure determines the mass flow after waste gas treatment during ongoing production and allows the capture of all process emissions and atmospheric load. This method, too, is easy to realize and does not require the handling of highly concentrated waste gases. The FTIR measurements provided by DAS Environmental Experts adhere to the specifications of each client’s waste gas treatment system, offer quality control, and serve as a reliable guideline for the continued optimization of our treatment systems. DAS also offers measurements in adherence to testing and certification institutes.