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Flowchart of Propylene Derivatives |
A simple flowchart can explain the chemical products derived from the propylene. Polypropylene is derived by catalysis process, each sequence is specified as propylene is treated with benzene to get cumene and it is reacted with air to get cumene hydroxide and finally acetone.
Propylene is treated with acid to get three compounds trimer, tetramer, n-olefins. Trimer and Phenol produce Nonylphenol. The tetramer is reacted with Benzene to produce Dodecylbenzene and used for Detergent manufacturing. Similarly, n-Olefins are reacted with Benzene to get Alkylbenzene to produce Detergents. Another reaction mechanism to produce Acrylonitrile is reacting Propylene with Oxygen and Ammonia or by us Nitric Oxide and catalyst.
Propylene is reacted with chlorine to get allylchloride which is used for glycerol. By using Hypochlorous and acid Propylene is converted to Propylene oxide.
n-butanol == used in amino resins, solvents, glycol ethers, plasticisers, acrylates
propylene oxide == used for urethane polyols, ethers, amines, propylene glycol
polypropylene == extrusion, fibres and filaments, injection molding
isopropyl alcohol == cosmetics, pharmaceutical, process solvent, acetone
Propylene is treated with acid to get three compounds trimer, tetramer, n-olefins. Trimer and Phenol produce Nonylphenol. The tetramer is reacted with Benzene to produce Dodecylbenzene and used for Detergent manufacturing. Similarly, n-Olefins are reacted with Benzene to get Alkylbenzene to produce Detergents. Another reaction mechanism to produce Acrylonitrile is reacting Propylene with Oxygen and Ammonia or by us Nitric Oxide and catalyst.
Propylene is reacted with chlorine to get allylchloride which is used for glycerol. By using Hypochlorous and acid Propylene is converted to Propylene oxide.
Propylene derivative petrochemicals:
Acrylonitrile == used in home furnishings, Apparel.n-butanol == used in amino resins, solvents, glycol ethers, plasticisers, acrylates
propylene oxide == used for urethane polyols, ethers, amines, propylene glycol
polypropylene == extrusion, fibres and filaments, injection molding
isopropyl alcohol == cosmetics, pharmaceutical, process solvent, acetone
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Process flow sheet of propylene production from refinery gas |
The process flow sheet for propylene production from refinery gas involves the following steps:
1. Feed Preparation: Refinery gas, a mixture of hydrocarbons, is fed into the process.
2. Pre-Treatment: The refinery gas is pre-treated to remove impurities such as hydrogen sulfide and carbon dioxide.
3. Steam Cracking: The pre-treated refinery gas is then fed into a steam cracker, where it is heated in the presence of steam to produce a mixture of hydrocarbons, including propylene.
4. Quenching: The hot gas from the steam cracker is then quenched with water to stop the reaction and condense the heavier hydrocarbons.
5. Compression: The quenched gas is then compressed to separate the lighter hydrocarbons, including propylene.
6. Fractionation: The compressed gas is then fractionated to separate the propylene from other hydrocarbons.
7. Purification: The propylene is then purified to produce a high-purity product.
The process flow sheet diagram shows the various equipment and processes involved in the production of propylene from refinery gas.
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Equipment |
Key Processes |
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Steam Cracker |
Steam Cracking |
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Quencher |
Quenching |
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Compressor |
Compression |
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Fractionator |
Fractionation |
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Purifier |
Purification |
