INDALINTechnology for Production of

Petrochemicals Feedstocks-light olefins & BTX

High olefinic streams like coker naphtha /visbreaker naphtha cannot be directly blended in the gasoline

pool and shrinking refinery margins due to their lower value. These low value streams need to be

upgraded to valuable products for improvement in refinery profit margin. On the other hand, LPG, light

olefins, viz. ethylene, propylene, etc. are in increasing demand for value addition and downstream

integration with petrochemicals. The biggest challenge to Refiners is to upgrade the low value streams

to valuable products for improvement in Refinery margin. INDALIN, a new patented process technology,

developed by IndianOil R&D has capability to convert low value olefinic naphtha streams to LPG / light

olefins and BTX enabling refineries to improve profitability.

Salient Technology Features Employs similar hardware configuration to conventional FCC /INDMAX unit

High severity cracking (ROT > 550 C)

High yields of LPG, Propylene & Ethylene

Gasoline rich in BTX (up to 40 wt%) – higher margin through recovery of BTX and recycle of non-aromatic part of gasoline

Proprietary catalyst depending on feed characteristics and operating flexibility

Typical light olefins yield, wt% of feed

Ethylene

Propylene

LPG

wt%

0

10

20

30

40

50

60

Major Benefits Capable of handling wide range of lighter feedstocks (FBP < 400 C)

Operability at wide range of process conditions to maximize either light olefins or BTX depending on refiner’s objective

Proven experience in research, technical services, design, revamp, troubleshooting, optimization, etc. along with wide operating experience of process units employing circulating fluidized bed systems

Efficient design of hardware system based on more than three decades of experience in troubleshooting, optimization, technical services, revamp, etc. along with wide operating experience of Cat Cracking units

Dr. Reji MathaiIndian Oil Corporation Ltd, Research & Development CentreTel: +91-129-2294479E-mail: inforndiocl@indianoil.in

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