C3/MRC天然气液化工艺优化模拟

来源 :天然气化工:C1化学与化工 | 被引量 : 0次 | 上传用户:limingxing0623
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
为降低天然气液化中丙烷预冷混合冷剂液化工艺(C3/MRC)的能耗,采用Aspen HYSYS软件建立了优化计算模型。结合KBO法和优化器中的Box算法,以系统最小能耗为目标函数,换热器最小换热温差3℃为约束条件,工艺参数和制冷剂配比为决策变量,对C3/MRC流程进行了优化模拟。结果显示,优化后单位质量天然气的液化能耗为351.49 kW·h/t,与国外经典的C3/MRC液化流程相比,能耗显著降低。
其他文献
Supported Pd catalysts with varied Pd loadings (x =0.5 wt%,2.0 wt%,5.0 wt%,7.5 wt%,15.0 wt%) were prepared by the incipient wetness impregnation method using a ZnAl2
Finding easy-to-operate strategy to obtain anode material with well-designed structure and excellent electrochemical performance is necessary to promote the dev
The development of promising zinc anodes mainly suffers from their low plating/stripping coulombic efficiencies when using aqueous electrolyte,which are mainly
Currently,pyrolysis as the most widely used method still has some key issues not well resolved for syn-thesis of carbon-supported single-atom catalysts(C-SACs),
针对克劳斯工业催化剂的效率问题,采用计算流体力学理论构建了不同几何结构和尺寸的克劳斯催化剂模型,通过多物理场耦合求解研究了反应温度、克劳斯反应本征速率、催化剂尺寸、孔隙率、孔径以及几何结构对其催化效率的影响。结果表明,催化剂颗粒的直径、孔径和特征尺寸是影响克劳斯工业催化剂有效因子的显著因素。减小催化剂颗粒直径,增大颗粒孔径,特别是增加大孔的直径和比例,能够显著提高催化剂有效因子。通过异形化设计增大催化剂颗粒的外表面积,即减小催化剂颗粒的特征尺寸,是提高克劳斯工业催化剂催化效率的有效途径。
Lithium-ion capacitors(LICs)are regarded as a good choice for next-generation energy storage devices,which are expected to exhibit high energy densities,high po
Lithium-sulfur (Li-S) batteries and lithium-selenium (Li-Se) batteries,as environmental protection energy storage systems with outstanding theoretical specific
The selection of the most suitable crystal structure for ions storage and the investigation of the corresponding reaction mechanism is still an ongoing challeng
Spent catalyst used for denitration by selective catalytic reduction (spent SCR denitration catalysts) is one of the important urban mines due to the high conte
Cost-effective atomically dispersed Fe-N-P-C complex catalysts are promising to catalyze the oxygen reduction reaction(ORR)and replace Pt catalysts in fuel cell