Oxygen-containing-compound-to-aromatic hydrocarbon reaction product purification method
A technology of aromatics reaction and compound, which is applied in the field of purification of aromatics reaction products from oxygen-containing compounds, can solve problems such as subsequent unit catalyst poisoning, achieve the effects of reducing energy consumption and equipment investment, improving economy, and simplifying the process flow
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Embodiment 1
[0032] according to figure 1 As shown in the process flow, the methanol raw material is heated to 200°C and then sent to the oxygenate conversion reactor. The reactor is a fixed bed, the reaction temperature is 475°C, and the reaction pressure is 0.16MPa. The ZSM-5 catalyst modified by Zn is used to make methanol undergo aromatization reaction to obtain oxygen-containing compound conversion products. The conversion product includes 15% hydrogen by volume, 11% carbon five and below hydrocarbons by volume, 6% carbon six and above hydrocarbons by volume, 68% water by volume, and 0.5% unreacted Methanol, and 0.2% by volume of oxygenates. These oxygen-containing compounds include non-aromatic oxygen-containing compounds between carbon one and carbon five and aromatic oxygen-containing compounds with carbon six and above. Non-aromatic oxygenates include formaldehyde, acetaldehyde, propionaldehyde, formic acid, acetic acid, ethyl ketone, acetone, methyl ethyl ketone, pentanone, an...
Embodiment 2
[0034] according to figure 1 And technological process shown in embodiment 1. The reaction temperature of the oxygenate conversion reactor is 450°C, the reaction pressure is 0.05MPa, and the Ag-modified ZSM-5 catalyst is used. The oxygenate conversion products obtained from the oxygenate conversion reaction include hydrogen with a volume fraction of 13%, hydrocarbons with carbon five and below at a volume fraction of 12%, hydrocarbons with carbon six and above with a volume fraction of 8%, and water with a volume fraction of 66%. , and 0.7% volume fraction of unreacted methanol, and 0.3% volume fraction of oxygenates. The oxygenate conversion product is separated in the separation system I through multiple units such as product cooling, gas phase compression, gas phase rectification, and oil phase rectification. First, spray cooling water at 40°C to lower the temperature in the quenching tower, obtain a gas phase at the top of the quenching tower with a temperature of 45°C, ...
Embodiment 3
[0036] according to figure 2 As shown in the process flow, the methanol raw material is heated to 200°C and then sent to the oxygenate conversion reactor. The reactor is a fixed bed, the reaction temperature is 470°C, and the reaction pressure is 0.3MPa. A Zn-ZSM-5 catalyst is used to make methanol undergo aromatization reaction to obtain oxygen-containing compound conversion products. The conversion products include hydrogen with a volume fraction of 11%, hydrocarbons with a volume fraction of 5 and below 13%, hydrocarbons with a volume fraction of 6 and above, water with a volume fraction of 68%, and unreacted hydrocarbons with a volume fraction of 0.2%. Methanol, and 0.1% by volume of oxygenates. These oxygen-containing compounds include non-aromatic oxygen-containing compounds between carbon one and carbon five and aromatic oxygen-containing compounds with carbon six and above. Non-aromatic oxygenates include formaldehyde, acetaldehyde, propionaldehyde, formic acid, ac...
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