Gas Flare Design Debottlenecking Using Pinch Analysis

• 作者: ThankGod Oweifa Goodhead
• 来源期刊: 化学工程与科学期刊(英文)
• 学科: 地球科学
• 关键词: Gas Flaring Pinch Analysis Debottlenecking Aspen FlareNet Optimization Header Pipe Tail Pipe
• 年，卷（期）: 2020,（4）
• 页码范围: 297-321
• 页数: 25页
• 分类号: P18

摘要

Gas flaring is concerned with the combustion of lighter ends of hydrocarbon mostly produced in association with crude oil. Flare networks are designed to handle the gas volume required to be flared. Most times, this flare networks are in close proximity but still have independent flare stacks, increasing risk to environment and cost on infrastructures. There is a need to integrate the flare networks in facilities within same area and through the application of Pinch Analysis concept, the resultant flare network can be optimized to give a system having optimal tail and header pipe sizes that will reduce cost and imp</span><span style="font-family:Verdana;">act on environment. In the light of the foregoing, the conce</span><span style="font-family:Verdana;">pt of pinch analy</span><span style="font-family:Verdana;">sis was used in debottlenecking integrate</span><span style="font-family:Verdana;">d gas flare networks from a flow station and a refinery in close proximity. Both flare networks were integrated and the resultant gas flare network was optimized to obtain the optimum pipe header and tail pipe sizes with the capacity to withstand the inventory from both facilities and satisfy the set constraints such as Mach number, noise, RhoV</span>^{<span style="font-family:Verdana;">2</span>}<span style="font-family:Verdana;"> and backpressure. Mach number was set at 0.7 for tail pipes and 0.5 for header pipes, noise limit was not to exceed 80 dB upstream and 115 dB downstream the sources, RhoV</span>^{<span style="font-family:Verdana;">2</span>}<span style="font-family:Verdana;"> was limited to 6000 kg/m/s</span>^{<span style="font-family:Verdana;">2</span>}<span style="font-family:Verdana;"> and the back</span></span></span><span><span><span style="font-family:""> </span></span></span><span><span><span style="font-family:""><span style="font-family:Verdana;">press</span><span style="font-family:Verdana;">ure requirement was source dependent respectively. The</span></span></span></span><span><s