Q & A > Question Details
what is the role of DMDS in adding to the platformer unit feed?
24/05/2019 A: James Chacko, Suez Water Technologies & Solutions, james.chacko@suez.com
Initial calculated sulfiding, as far as I know, is done to fresh regenerated Reformer Catalyst's Active metal sites to partially kill their Hydrogenolysis activity-or- Super-activity- of metal sites, that may crack HC feeds and leads to excessive coking - Please confirm from Catalyst supplier
25/03/2019 A: Ahmed Rehman, Parco, ahmed.rehman704@gmail.com
DMDS injection helps to mitigate metal catalyzed coking in platforming reactors.
24/03/2019 A: Sridhar Balakrishnan, Bharat Oman Refineries Limited , laksrid@yahoo.com
Typically DMDS is injected to prevent metal catalyzed coke formation in the fired heater tubes and reactors. This is injected to ensure some type of mechanical protection.
24/03/2019 A: keith bowers, B and B Consulting, kebowers47@gmail.com
DMDS--dimethyl-disulfide-- is used as a 'sulfiding agent' in 'activating' many catalysts that involve hydrogen manipilation such as hydro-desulfurization, hydro-cracking, dehydrogenation and aromatics formation. The catalytically activie sites work in the 'sulfide' form.
Please contact your catalyst licensor and ask their Technical Support experts to further explain the details and need for use of DMDS at the correct temperatures, pressures, and concentrations for your particular catalyst formulation and application. Use of DMDS is NOT a 'one size fits all' process.