Phenols have a variety of compounds, with the most important ones incl.
phenol(carbonic acid), and cresol(o-cresol, m-cresol and p-cresol); among them,
phenol is mainly used as the feedstock for di-phenol A production and phenol
formaldehyde production; o-cresol is widely used in the synthesis of resin,
pesticide, medicine, perfume, dyes, antioxidant and etc.; m-cresol is an very
important feedstock for the production of Vitamin E; p-cresol is widely applied
in the synthesis of BHT, the most employed antioxidant in the world. SL TEC
offers the technology of crude phenol purification with the phenol either from
coking phenol, or gasified phenol or alkylation liquid. Based on the facts that
the boiling points of the main product and the by-products are quite different @
certain condition and the boiling points will decrease with the reducing of the
pressure, SL TEC's technology lowers the separation temperature by reducing the
system system, distill, separate and purify to get high purity phenol
separately.
لا شيء
As below are shown the performances of 40,000TPA Crude Coking Phenol
Purification Project for references.
1. Product Specification
a. Phenol
Specification
S/N | Item | Index |
1 | Crystallization point, oC | 40.6 |
2 | Solubility Test[(1+2) Absorbance] | 0.03 |
3 | Moisture, % wt | 0.10 |
b. Cresol specification
S/N | Item | Index |
o-Cresol | m-Cresol and p-Cresol | Industrial Cresol |
1 | Appearance | White to light tawny crystal | Colorless to brown transparent liquid | Colorless to chocolate-brown transparent liquid |
2 | Density @ 20oC, g/cm3 | - | 1.03-1.04 | 1.03-1.05 |
3 | Moisture, %wt ≦ | 0.3 | 0.3 | 1.0 |
4 | Neutral Oil Test (Turbidimetric method), # ≦ | 2 | 10 | 10 |
5 | Phenol content, % wt ≦ | - | 5 | - |
6 | o-cresol, % wt ≧ | 99.0 | - | - |
7 | 2,6-Xylenlo, %wt ≦ | - | - | - |
8 | m-Cresol, % wt ≧ | - | 50 | 41 |
9 | Cresol + Xylenlo, % wt ≧ | - | - | 60 |
10 | Tricresol, % wt ≦ | - | - | 5 |
Note 1: in liquid state, o-cresol is colorless or slightly colored transparent liquid
Note 2：cresol includes all isomers of C7H8O; xylenlo includes all isomers of C8H10O.
Note 3: tricresol includes all isomers of C9H12O. |
2. Performances of 40,000TPA Phenol Purification Plant
S/N | Item | Unit | Index | Remark |
I | Production Capacity | | | |
| Crude Phenol Purification Plant | kt/a | 40 | |
II | Product Plan | | | |
1 | Phenol | t/a | 3030.48 | |
2 | Cresol | t/a | 19288.8 | |
3 | Fuel Oil | t/a | 13564.08 | |
III | Annual Running Days | days | 300 | 7200 hrs |
IV | Consumption of RM and Auxiliaries | | | |
| Crude Phenol | t/a | 37677.6 | outsourcing |
V | Consumption of Utilities | | | |
1 | Fresh Water | t/a | 82034 | Living and others |
2 | Electricity（10kV/0.4kV/220V） | kWh/a | 355.68×104 | |
3 | Natural gas | Nm3/a | 622.08×104 |
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