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Performance measurement and analysis of filtration and separation equipment for natural gas transportation
JI Zhong-li
(College of Mechanical and Transportation Engineering in China University of Petroleum, Beijing 102249, China)
Abstract:
The concentration and size distribution of dust particles at the inlet and outlet of multi-cyclone separators and filters in two domestic natural gas stations are measured by the particle online measuring devices for high pressure gas, and the separation performances of in-site cyclones and filters are evaluated. These field test results are compared with the laboratory test results under atmospheric temperature and pressure. The field test results of multi-cyclone separators are in agreement with the laboratory test results, and so the data measured under atmospheric temperature and pressure can be used as the indicator for evaluating separation performance of multi-cyclone under high pressure condition. However, the field test results of filters show some differences from the laboratory test results. The overall efficiency of filters decreases with the operation period because some large particles can penetrate the filter candle.
Key words:  gas pipeline  multi-cyclone  filter  particle online measurement