RICC Series Catalyst FCC catalyst
RICC Catalyst is a bottom cracking catalyst.
RICC-1 Catalyst is developed for FCCU2 at SINOPEC Qilu Petrochemical，which has strong bottom cracking ability, good hydrothermal stability, excellent metal tolerance, optimized product distribution and product quality simultaneously. RICC-1 catalyst is also a good choice for clean gasoline production.
The design of RICC series catalyst with good activity, stability, coke selectivity and excellent heavy metal-resisting property was mainly focused on improving the heavy oil conversion and inhibiting the increase of coke productivity rate by RIPP’s new technologies on FCC catalyst. This catalyst was composed of an improved rectorite active carrier and structure optimized zeolite SOY-12. SOY-12 is a new kind of structure optimized Y zeolite with low Na content, unblocked channel, high accessibility of active sites, good coke selectivity, high thermal and hydrothermal stability, developed by RIPP recently. Meanwhile, improved rectorite active carrier could adjust catalyst pore diameter and improve bottom cracking activity and coke selectivity.
The main specifications of RICC-1 catalyst were shown in Table 1.
Table 1 Main Specifications of RICC-1 Catalyst
|Chemical components, m%|
|Attrition Index, %/h||≤3.5|
|Bulk Density, g/ cm3||0.65~0.8|
|Surface Area, m2/g||≥220|
|Pore Volume, ml/g||≥0.35|
The commercial performance test of RICC-1 catalyst at FCCU2 of SINOPEC Qilu Petrochemical started in December 2006 and finished in October 2008. Fresh catalyst make up conducted on a day-to-day base. RICC-1 content in inventory reached a level of 100% in October 2008. The feed oil property, product distribution and main product properties of industrial application are listed in Table 2. It can be seen from Table 2 that under the similar feed oil property and higher level of heavy metal contaminating, the product distribution of summary calibration had noticeable improvement comparing with that of blank calibration. The light oil yield increased by 2.62 percentage points, among them the Gasoline yield increased by 3.52 percentage points, the total light liquid product yield increased by 3.48 percentage points, the yield of HCO plus slurry was reduced by 2.99 percentage points, the heavy oil cracking capability could be reinforced, the coke selectivity of RICC-1 was also better than that of reference catalyst. Meanwhile the gasoline olefin content was reduced.
Table 2 Industrial Application Results of RICC-1 Catalyst
|Resid blending ratio, %||45.41||55.6|
|Reaction temp., ℃|
|Regeneration temp., ℃||720||710|
|Carbon residue, m%||4.54||4.56|
|Heavy metal content on E-cat, μg/g|
|Products distribution, wt%|
|Light cycle oil||29.95||29.03|
|Gasoline + LCO, wt%||62.82||65.44|
|Total liquid yield, wt%||75.01||78.49|
|Olefin content, m%||44.2||39.3|
|Inductive period, min||299||194|
The first commercial test of RICC-1 catalyst was conducted in SINOPEC Qilu Petrochemical in December 2006. The catalyst has been successfully applied in more than 10 FCC units in CNPC Ningxia Petrochemical, CNPC Qingyang Petrochemical, SINOPEC Qilu Petrochemical and SINOPEC Qingjiang Petrochemical, Refineries in USA etc.
RICC-1, RICC-2, RICC-3, RICC-5 and VSG-5N