MGA 1600ES

Overview The MGA 1600ES - Multiple Gas Analyzer - is an on-line analyzer designed for a wide range of process gas analysis applications. Providing compositional analysis of process gas streams, the MGA has earned its reputation as "Industry´s Workhorse" through its quality of design and ruggedness that is inherited from the original MGA 1200. With the ability to measure up to 16 gases in as little as 15 seconds, the MGA 1600ES offers versatility for a wide range of applications. Technology The MGA 1600ES is a programmable voltage scanning magnetic sector mass spectrometer. Because the MGA 1600ES scans the accelerating voltage of ions, it can provide compositional analysis of up to 16 user-programmed components. The typical scan time ranges from 5-15 seconds depending upon the complexity of the application. Because of this speed, one MGA can be used to measure multiple process streams in processes that currently use multiple conventional analyzers. First, an inlet system heats the sample to 120° C to prevent condensation. The sample then passes through a sintered inlet leak that not only regulates the amount of gas to enter the analyzer, but also acts as a final filtering device. The gas sample is then ionized within a dual filament source. The positively charged particles are allowed to enter the analyzer. The ions enter a fixed magnetic field at various acceleration voltages and travel a specified radial path to the appropriate Faraday collector/electrometer combination. The electrometer generates a voltage proportional to the current striking the Faraday cup. The high vacuum within the MGA 1600ES is created and maintained by utilizing both a turbomolecular and mechanical rough vacuum pumps. With proper maintenance, these pumps will have a long service life.   Applications The MGA Series process mass spectrometer is designed to operate unattended 24 hours a day/7 days a week. Since it can be used for measuring any process gases, the application database is as limitless as there are processes. Please contact Hamilton Sundstrand for more detailed application notes: Some of the more common applications include: Pharmaceutical and Biotechnology Fermentation - measurement of headspace gases in fermentation vessels to determine RQ, CER along with other gases such as methanol, ethanol, methane, ammonia, acetic acid, and aromatics. This application is suited for small pilot fermentation vessels and large production vessels where metabolic rate information is critical. Mammalian Cell Culture - measurement of headspace gases in mammalian cell reactors. Similar properties and gases are measured as in microbial fermentation, however, the MGA also provides insight into optimizing the metabolic rates which will help determine ends points during inoculation and production phases. Ammonia and Urea Ammonia - measurement of gas composition in the Ammonia Converter, Secondary Reformer, Absorber, and Methanator. In Ammonia Converter, the determination of the feed/air ratio (H2/N2) helps to improve converter efficiency. This ratio is also measured in the Reformer along with inert gases so the ratio can be constantly maintained. Urea - measurement of NH3/CO2 ratios along with nitrogen, water, oxygen, hydrogen, methane and water can be achieved. Petrochemical Ethylene Oxide - measurement of processes gases at the inlet and outlet of the ethylene oxide reactor. By calculating the carbon balance, the ratio of the inlet and outlet ethylene, ethylene oxide and carbon dioxide concentrations, the process can be better optimized. Polyethylene Production - measurement of impurities in the ethylene feedstock as well the ability to measure concentrations of initiating, transfer and inhibitor agents in the reactor. Methanol Synthesis - analysis of composition of feed gas , primary and secondary reformers and the methanol reactor improves the efficiency of the synthesis process. Typical gases measured in these processes are CO, CO2, H2, AR, CH4, and O2. Coal Gasification - provides instantaneous determination of the gaseous products produced in the gasification process. Typical streams monitored include the sulfur removal process and the subsequent separation stages of the various producer gases. Blended gas mixtures can also be measured. Typical gases measured are CO, CO2, H2, Ar, CH4, H2S, SO2, N2 and O2. Metals Processing Blast Furnace - measurement of top gases in the furnace CO, CO2, H2, Ar, CH4, N2 and O2 as well as determination of blast furnace efficiency and BTU values. Also works well during blowdowns to monitor hydrogen production. BOF - Basic Oxygen Furnace - similar measurements to the Blast Furnace are made in the BOF.Coke Oven - compositional measurements are made to determine coke oven efficiency along with detecting levels of H2S.

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