Technology products

Longnai Company is currently a supplier of complete equipment for silver process formaldehyde.

Crude Aromatics Separation Technology

  • Technology Introduction

Our company provides naphtha cutting, reforming C9 crude aromatic hydrocarbon separation, reforming C10 crude aromatic hydrocarbon separation and other crude aromatic hydrocarbon separation technologies. Our company’s crude aromatics separation process has the advantages of advanced process flow, high process operation flexibility, low process energy consumption, and high product yield.

Taking the separation of 60,000 tons/year C10 crude aromatics as an example, the high-boiling solvent product obtained has high aromatic content, strong solubility, low toxicity, small odor, high flash point, high boiling point, moderate volatilization speed, and stable chemical and physical properties. It has good leveling properties and does not contain chlorine and heavy metals/physics. It can exert high solubility especially in the later stages of evaporation, making the coating film smooth without orange peel and with good gloss. In addition, it can also be used as a cleaning agent for precision machinery and a pesticide emulsifier. It is an ideal solvent for the production of high-grade paints, coatings, thinners, inks, adhesives, petroleum additives and high-temperature reactions. It can also be used as an extraction agent for the production of hydrogen peroxide by the quinone method.

  • Typical projects

60,000 tons / year C10 crude aromatics separation case

Processing capacity: 60,000 tons/year C10 crude aromatics

Annual operating time: 8,000 hours

Operation flexibility 70%-110%

Raw materials: C10 crude aromatics (distillation range analysis results)

Weight percentage/% Temperature/°C Weight percentage/% Temperature/°C
0 191 50 208.5
5 193 55 211.5
10 195 60 214.5
15 196.5 65 218.5
20 198 70 225
25 199.5 75 234
30 201 80 248
35 202.5 85 270
40 204 90 295
45 206 95 330

 

 

 

Product solutions

serial number project Specification unit Capacity
1 SA-1000 high boiling point solvent Distillation range: 149-180ºC t/a 10000
2 SA-1500 high boiling point solvent Distillation range: 177-215ºC t/a 2000
3 SA-1800 high boiling point solvent Distillation range: 200-270ºC t/a 22000
4 Methyl tetramethylbenzene enriched solution 25%-30% t/a 16000
5 SA-3000 high boiling point solvent Initial boiling point: ≥270ºC t/a 10000

Process flow diagram

Project pictures