کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5444225 1398347 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Proposal and design of a natural gas liquefaction process recovering the energy obtained from the pressure reducing stations of high-pressure pipelines
ترجمه فارسی عنوان
پیشنهاد و طراحی یک فرایند مایع سازی گاز طبیعی با بهره گیری از انرژی حاصل از ایستگاه های کاهش فشار خطوط لوله فشار بالا
کلمات کلیدی
مایع سازی گاز طبیعی، بازیافت انرژی، خط لوله فشار بالا،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
Taking advantage of the refrigerating effect in the expansion at an appropriate temperature, a fraction of high-pressure natural gas transported by pipelines could be liquefied in a city gate station through a well-organized pressure reducing process without consuming any extra energy. The authors proposed such a new process, which mainly consists of a turbo-expander driven booster, throttle valves, multi-stream heat exchangers and separators, to yield liquefied natural gas (LNG) and liquid light hydrocarbons (LLHs) utilizing the high-pressure of the pipelines. Based on the assessment of the effects of several key parameters on the system performance by a steady-state simulation in Aspen HYSYS, an optimal design condition of the proposed process was determined. The results showed that the new process is more appropriate to be applied in a pressure reducing station (PRS) for the pipelines with higher pressure. For the feed gas at the pressure of 10 MPa, the maximum total liquefaction rate (ytot) of 15.4% and the maximum exergy utilizing rate (EUR) of 21.7% could be reached at the optimal condition. The present process could be used as a small-scale natural gas liquefying and peak-shaving plant at a city gate station.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cryogenics - Volume 80, Part 1, December 2016, Pages 82-90
نویسندگان
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