Gasoline Sulfur Reduction Via Catalysts And Additives

RGSAAR a The only proven FCC catalysts and additives for gasoline sulfur reduction
Shanghai Rich company RGSAAR technologies: Super RGSAAR(catalytic active), and RGSAAR-1,(without catalytic active) are the result of over 5 years of innovation. RGSAAR has been used in over 15 FCC units worldwide, with and without hydrotreating hardware, to provide 20%-45% sulfur reduction in FCCU naphtha.

In-unit reduction of FCC gasoline sulfur with Shanghai Rich companya s patented RGSAAR technologies continues to create a variety of opportunities and options for refiners to drive profitability. Shanghai Rich company creates economic advantages around:

a c Feedstock blending
a c Operating flexibility during hydrotreater outages
a c Gasoline stream blending options
a c Advantages with naphtha post-treating

Commercial Experience

The figure below illustrates the typical performance of RGSAAR in commercial application. This refiner used the additive for 15 months and achieved 30% gasoline sulfur reduction across a range of gasoline endpoints.
Refiners continue to use RGSAAR to preserve hydrotreater catalyst life and delay outages. In addition to delaying a HT outage, it has been proven commercially cost effective to continue the use of RGSAAR technology during a hydrotreater turnaround in order to provide FCC feedstock flexibility while maintaining gasoline pool sulfur compliance. Coordinated efforts with Shanghai Rich company have allowed refiners to baseload their FCCU inventory and achieve sulfur reduction targets in as little as two weeks.
Table 1: RGSAARFamily of Products

RGSAAR -1
Super RGSAAR

Typical sulfur reduction

20%-30%
20%-35% levels

Desired unit operation
or PB


Range of application

4-48 mos
3-72 mos

Lengths
Usage rates (% of 5%-15% 25% inventory)