g to improved unit throughput and energy savings. house engineered internals use superior metallurgy, ensuring reliable and performance under demanding operating conditions.
Low coke, dry gas , and bottoms selectivity Light ole ns+ BTX yield up to 50% Single unit process scheme Capex reduction by 30% Carbon emission s reduction by 20% Developed through rigorous research, advanced catalyst evaluation , and pilot testing. Optimised process parameters
Robust technology
Direct utilisation of crude
In - house developed catalyst
In - house developed hardware
SprayMax feed injection nozzles Heli P ack stripper packings
Figure 3 Salient features of HP-Coat
The salient features of HP-Coat have been summarised in Figure 3 . The combined light olefins yield (C2=, C3=, and C4=) can reach up to 33 wt%, and the BTX yield is 16 wt%, resulting in a petrochemicals yield of 49 wt% on a fresh feed basis. HP-Coat process configuration HP-Coat employs a single FCC configuration to enhance process flexibility and economics. Unlike traditional FCC units, this setup operates at a relatively higher severity level and features two risers tailored for different feedstocks and to maximise the yield of olefins and aromatics from crude oil. Riser I is designed for deep cracking of heavy oil, optimising feed preheat, reactor outlet
re 2: SprayMax feed injection nozzles and Helipack stripper internals Figure 2 SprayMax feed injection nozzles and Helipack stripper internals
HeliPack stripper packings, engineered to achieve a stripping efficiency of up to 99% (see Figure 2 ). This high efficiency helps maintain regenerator temperatures within safe operating limits. Additionally, the HeliPack design reduces steam consumption up to 10% and increases catalyst flux up to 20%, contributing to improved unit throughput and energy savings. These in-house-engineered internals use superior metallurgy, ensuring reliable and long- term performance under demanding operating conditions. 5
temperature (ROT), catalyst-to-oil ratio, and steam flow rates to maximise the yield of lighter products while minimising coke, dry gas, and bottoms while Riser II focuses on cracking low-value lighter streams, further improving olefins yield, an essential component in petrochemical production. The unit’s overall design ensures an optimised heat
Dry gas
ERU
Ethylene Propylene
LPG
LPG
C Ole ns BTX
Desalted crude
Naphtha
BTX
Naphtha product
LCO
LCO product
Products Ethylene Propylene Butylene
Yields, wt.%
Bottoms
5 – 7
12 – 16
7 – 10
BTX
12 – 16
F igure 4 HP-Coat process configuration and typical yield
Refining India
32
Powered by FlippingBook