摘要
气-液分布器作为滴流床加氢反应器中的重要内构件,可有效抑制催化剂的结焦和失活,延长催化剂的使用寿命和反应器的运转周期。通过冷模实验研究了进气孔数量及气、液进孔中心间距(Δh)对一种气-液分流式分布器的抗塔板倾斜性能、液体分散性能以及阻力损失等流体力学性能的影响。实验结果表明,两气孔型气-液分流式分布器的抗塔板倾斜性能要优于四气孔型。两气孔型分布器的抗塔板倾斜性能和液体分散性能均随Δh的增加呈现先增强后减弱的趋势,且均在Δh=55 mm时达到最优。而在相同的气、液流量下,阻力损失则随Δh的增加呈现单调递减的变化趋势。
The application of gas-liquid flow distributor which is an important internal in trickle-bed reactor can effectively control the coking and deactivation of the catalysts,extend the catalyst service life and operating cycle of the reactor. The cold-run experiments were conducted to investigate the impacts of the number of gas-inlet holes as well as the distance between gas-inlet hole and liquid-inlet hole（ Δh） on the hydrodynamic performances of the gas-liquid separated flow distributor,including the resistance to tray unlevelness,the liquid dispersion and the pressure drop. The results show that,the gas-liquid separated flow distributor with two gas-inlet holes has better performance of resistance to tray unlevelness. The performance of resistance to tray unlevelness and the liquid dispersion performance of the gas-liquid separated flow distributor would be enhanced firstly and then weakened with the increase of Δh,and the optimal value of Δh was about 55 mm.However,the pressure drop would decrease linearly with the increase of Δh.
出处
《炼油技术与工程》
CAS
2016年第2期36-40,共5页
Petroleum Refinery Engineering
关键词
气-液分流式分布器
抗塔板倾斜
液体分散
阻力损失
实验
gas-liquid separated flow distributor
tray unlevelness resistance
liquid dispersion
pressure drop
experiment
