| 摘要 |
In the production of acetylene from hydrocarbons by partial combustion, quenching and separating carbon black from the gas by contacting with an aromatic hydrocarbon oil, naphthalene or an a -halonaphthalene is used as the aromatic hydrocarbon oil. A portion of the naphthalene containing carbon black may be freed from carbon black and may be recycled alone or in admixture with naphthalene containing carbon black. The carbon content of the recycle naphthalene is preferably 10 to 30% by weight and naphthalene vapours entrained in the quenched gas are condensed by aromatic hydrocarbon oils having a boiling point of 80 DEG to 170 DEG C. and a specific gravity less than 0.95 which oils are preferably free from polymerizable constituents. The heat transmitted to the naphthalene may be used to preheat the hydrocarbons to be reacted, or to produce steam. |
