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TOR-1 deolefination catalyst

TOR-1  reforming reaction oil or aromatic deolefination purification technology

Research Institute of Petroleum Processing

1. Introduction

Catalytic reforming oil is rich in a small amount of olefin. As the reforming severity becomes higher and higher, the olefin content in the reformed oil also increases significantly. Olefin in aromatic hydrocarbon in qualified reforming oil must be removed, or it will affect bromine index, corrosivity, or acid pickling color of aromatic products. A small amount of olefin in the reformed oil has different effects on aromatics extraction and performance of downstream, adsorbent, and catalyst. Thus, how to reduce the olefin content in the reformed oil is a difficult problem to be solved in the industry. Olefin in reforming oil can be removed by the ways of granular argil adsorption, selective hydrogenation and molecular sieve catalytic refining.

 

2. Performance index of TOR-1 catalyst

TOR-1 deolefination catalyst adopts special molecular sieve, with unique pore structure and acid strength distribution, as active component. Single pass life of the catalyst is 8 times that of industrial argil. Compared with argil, TOR-1 has longer life cycle, lower labour intensity, and lower waste emission.

List 1 Physical chemical index of deolefination catalyst TOR-1

Item

Specification

Major component

Molecular sieve and binder

Shape and appearance

Light yellow cylinder

Size, diameter Φ1.4-1.8

3~15mm>80%

Bulk density , g/mL

0.50~0.65

Radial crushing strength , N/cm

≥100

Specific area, m2/g

≥500

Pore volume, mL/g

≥0.35

 

List 2 Operating condition and performance guarantee of deolefination catalyst TOR-1

Item

Index

Reaction materials

After extracting C6/C7 btx aromatics, heptane tower C8+ btx aromatics, isomerous btx aromatics, bromine index of raw material is no more than 1500mgBr/100g。

Reaction weight space velocity, h-1

0.5~2

Reaction pressure, MPa

1~2.5

Reaction temperature, ℃

130~240

Performance guarantee

Bromine index of raw material (mgBr/100g)

Single pass life/entire life

≤600

≥10 / ≥30

600~800

≥8 / ≥24

800~1500

≥6 / ≥18