CAJ | 학술논문

国内油气资源分散、单井产量小，边远地区的油气资源较丰富，可以利用小型液化天然气装置制成LNG后外输，同时小型天然气膨胀液化工艺又是我国LNG研究工作的重点。利用Aspen Hysys软件对N2-CH4膨胀制冷液化流程进行模拟、研究和分析，得出影响该流程的主要参数：制冷剂高压压力、主换热器出口温度、制冷剂氮气含量、天然气进料压力和LNG储存压力对液化率和比功耗的影响。
국내유기자원분산、단정산량소，변원지구적유기자원교봉부，가이이용소형액화천연기장치제성LNG후외수，동시소형천연기팽창액화공예우시아국LNG연구공작적중점。이용Aspen Hysys연건대N2-CH4팽창제랭액화류정진행모의、연구화분석，득출영향해류정적주요삼수：제랭제고압압력、주환열기출구온도、제랭제담기함량、천연기진료압력화LNG저존압력대액화솔화비공모적영향。
Oil and gas resources in China scatter, single well yield is small, oil and gas resources in rural areas are rich. Small-scale gas liquefaction device can be used to prepare LNG for transportation; at the same time, small-scale natural gas liquefaction process has been the focus of LNG research in our country. In this paper, N2-CH4 expansion refrigeration liquefaction process was simulated, researched and analyzed with the software of Aspen Hysys. Main parameters affecting the process were determined as follows:refrigerant higher pressure, the outlet temperature of the main heat exchanger, nitrogen content, feed gas pressure and LNG storage pressure.