Advanced energy saving in the reaction section of the hydro-desulfurization process with self-heat recuperation technology
Advanced energy saving in the reaction section of the hydro-desulfurization process with self-heat recuperation technology
复制标题
DOI：
10.1016/j.applthermaleng.2010.05.003
复制
发表时间：
2010-11
影响因子：
6.4
通讯作者：
K. Matsuda;K. Kawazuishi;Yoshiichi Hirochi;Rei Sato;Yasuki Kansha;C. Fushimi;Yutaka Shikatani;Hiroshi Kunikiyo;A. Tsutsumi
中科院分区：
文献类型：
--
作者：
K. Matsuda;K. Kawazuishi;Yoshiichi Hirochi;Rei Sato;Yasuki Kansha;C. Fushimi;Yutaka Shikatani;Hiroshi Kunikiyo;A. Tsutsumi
The reaction section of the naphtha hydro-desulfurization (HDS) process is a heating and cooling thermal process consisting of a feed/effluent heat exchanger and a fired heater. Energy savings are fundamentally made as a result of the maximized heat recovery in the heat exchanger and the reduced heat duty of the fired heater. To achieve further energy saving in the process, “self-heat recuperation technology” (SHRT) was adopted. In this technology, a compressor was introduced. The suction side of the compressor needed a lower pressure and the feed stream evaporated much easily. The discharged side of the compressor satisfied the operating conditions of both pressure and temperature at the inlet of the reactor. And the reactor effluent stream was able to be used completely to preheat and vaporize the feed stream. All the heat in the process stream was re-circulated without using a fired heater. SHRT was applied to the naphtha HDS process of 18,000 barrel per stream day (BPSD) in the refinery and the mass and energy balance of the process was calculated using commercially available simulation software, Invensys PROII version 8.1. This process-simulation case study confirmed that despite there being no more energy saving potential in the conventional process that makes use of a fired heater, the advanced process with SHRT can reduce the energy consumption significantly by using the recuperated heat of the feed stream.
