Project Description

GOR Series Catalyst FCC catalyst

Applicable Scope

GOR series catalysts are family catalysts which can be suitable for catalytic cracking installation with all kinds of feedstock, and can reduce gasoline olefin content.

Characteristics

GOR series catalysts have good bottoms cracking ability and coke selectivity, can reduce olefin content in FCC gasoline prominently by 10-15 v%, and keep gasoline RON non-reduction.

Design Philosophy

GOR series first generation olefin-reducing catalyst adopts modified Y molecular sieve, MOY, as its main active component, which is modified with unique oxide and endowed with excellent hydrogen transfer activity, fine coke selectivity and excellent cracking ability to heavy oil. The catalyst has high activity and strength, which can realize selective hydrogen transfer reaction and ensure effective utilization of hydrogen resource in feedstock and reasonable distribution in product.

The second generation catalyst has the following characters. Effective match of selective hydrogen transfer activity and cracking activity is ensured through performance improvement and blending of active components. Good selective hydrogen transfer activity can ensure olefin-reducing effect to gasoline, while high cracking activity can increase conversion with heavy oil. New type matrix is adopted to control pore distribution and increase medium pore proportion to enhance heavy oil cracking ability, increase yield of diesel oil, and restrain coking at the same time. Acid distribution of catalyst is adjusted properly to reduce coke and dry gas.

The third generation olefin-reducing catalyst, GOR-III, is developed to further improve olefin-reduction performance. Through further modification of main active components, selective molecular sieve and matrix, olefin-reducing margin and cracking ability is further enhanced, hydrothermal stability of catalyst is elevated, coke selectivity and product distribution is improved.

Property

The main specifications of GOR catalyst were shown in Table 1.

Table 1 Main Specifications of GOR Catalyst

Main specifications Typical data
Chemical components
Al2O3, m% ≥45.0 51.5
Na, m% ≤0.3 0.2
Fe, m% ≤0.6 0.18
SO4, m% ≤2.0 0.78
Physical property
LOI, m% ≤13.0 11.6
Attrition Index, %/h ≤3.0 2.0
Bulk Density, g/ml 0.65-0.80 0.72
Surface Area, m2/g ≥230 295
Pore Volume, ml/g ≥0.33 0.38
Particle Distribution
0-40 μm, m% ≤18 19.4
0-149 μm, m% ≥89 93.3
MAT
800℃, 4h % ≥75.0 79.5

Commercial Reference

The commercial results of GOR catalyst which were applied in SINOPEC refineries such as Gaoqiao Petrochemical, Qingdao Petrochemical, Wuhan Petrochemical and Jinan Petrochemical are listed in Table 2~4 respectively. The results show that GOR Series catalyst has the ability to reduce olefin in FCC gasoline prominently by 10 v%. Combined with operation techniques, olefin content in FCC gasoline can be steadily controlled under 35 v%, while content of isomerized alkane and aromatics can be increased and yield of LPG keeps at a high level.

Table 2 Feedstock Properties

Items Reference catalyst GOR catalyst
Density, kg/m3 908.5 922.3
Carbon residue, % 5.42 5.81
Sulfur content, % 0.48 0.37
Heavy metals content, ppm
Fe 12.84 19.09
Ni 13.69 11.0
V 1.1 8.6
Cu 0.05 0.06
Na 1.27 1.2

Table 3 Industrial Application Results of GOR Catalyst

Items Reference GOR
Feed Rate, t/h 115 128
Preheat temp, ℃ 196 198
Reaction temp, ℃ 513 513
Regen. #1 Dense bed temperature, ℃ 670 675
Regen. #2 Dense bed temperature, ℃ 700 696
Disengager top pressure, KPa 168 172
1st regen. Pression, KPa 180 182
2nd regenen. Pression, KPa 212 218
Resid blending ratio, % 38.2 38.5
Products distribution
Dry gas, % 3.26 3.45
Liquid yield, % 13.48 14.86
Gasoline, % 45.89 45.68
Light diesel, % 22.5 21.42
Slurry, % 5.87 5.43
Coke, % 8.5 8.66
Loss, % 0.5 0.5

Table 4 Gasoline Properties

Items Reference GOR
Distillation
10% point, ℃ 53 57
50% point, ℃ 95 96
90% point, ℃ 159 161
FP, ℃ 188 189
Saturated vapor pressure, KPa 65 62
Actual gum, mg/100ml 3.2 3.6
Inductive period, min 952 1000
Sulfur content, % (m/m) 0.027 0.022
Alkane content, % (v/v) 41.94 49.10
Aromatics content, % (v/v) 12.16 16.30
Olefin content, % (v/v) 45.90 34.60
RON 91.6 90.8

Products/Grades

GOR-Q, GOR-II and GOR-III

 

Email: y@yzeolite.com