Corrosion
5
Corrosion Study Process 1 Process Review Common processes: Ups tream: Crud e/ga s stabiliza tion , gas dehy drati on, gas comp ressi on, prod uced wate r treatment. Downstream: Crud e refin ing, catal ytic refor ming , cata lytic crac king , hydr otrea ting , gas sweetening , etc. Staff must be able to: • Identify major equipment and their functions and process changes that take place inside i.e. reaction, heating, cooling, condensation, vaporization, dehydration, etc. • Identify major process streams i.e. feed, product, waste, etc. Suggested reference: • !I "! #$% Second &di tion, pri l '(%% 2 Co rros ive Spe ci es /Corro dent s Common corrosive species: Upstream: ydrogen sulfide !"#$, Carb on dio% ide !C&"$, chlo rides , seawater, prod uced water Downstream: Chlorides, seawater, fresh water, acids, chemicals, hydrogen Staff must be able to: • )ind out stream composition from *+eat aterial -alance or *!rocess /escription • /etermine corrosivity of chemicals from S/S 3 Material Review Common materials used: Carbon steel, stainless steel, copper nickel, low alloy Staff must be able to: • /etermine the material used from 0 drawing, piping material classes 1this may differ from one client to another2 or3and !4I/s reihan taharim (age 1 of 5 )/*/+
description
Corrosion basic for all new