Fixed Bed Hydrotreating

Fixed Bed Hydrotreating – Application Overview

This is a licensed process using guard reactors to prevent poisoning of the catalyst. Zero leak catalyst addition and withdrawal isolation valves are critical to the proper functioning of this process.

FLOW DIAGRAM
Item	Applications	Temp range (°F)	Pressure (psi)	Size (in)
1	Feed pump isolation	200 – 320	3200	8 – 12
2	Guard reactor isolation / catalyst addition	400 – 550	3200	4 – 12
3	Guard reactor isolation / catalyst withdrawal	400 – 550	3200	4 – 12
4	Recycle gas compressor surge	50 – 100	2000 – 3000	4 – 8
5	Rich amine isolation	100	2000 – 3000	4 – 10
6	Sour water isolation	100	3200	2 – 6
7	Cold high-pressure separator automated level control isolation	100	2200	6 – 10
8	Cold high-pressure separator manual level control Isolation	100	2200	6 – 10
9	Hot high-pressure separator automated level control isolation	400 – 500	2600	8 – 12
10	Hot high-pressure separator manual level control isolation	400 – 500	2600	8 – 12
11	Stripper bottoms emergency block valve	250 – 450	50	8 – 12
12	Stripper bottoms pump isolation	250 – 450	150	6 – 10
13	Unit depressurization	100	2200	6 – 10