| 摘要 |
<p>1,174,870. Fluid fuel combustion apparatus. JAPANESE GEON CO. Ltd. 30 June, 1967 [4 July, 1966], No. 30369/67. Heading F4B. [Also in Division C5] In apparatus for thermal cracking of a hydrocarbon a preheated hydrocarbon such as methane, propane or naphtha is injected from the tip 5<SP>1</SP> of a nozzle 5 outwardly towards the peripheral wall of a frusto conical section 6 where it uniformly mixes with a high-speed, high-temperature gas stream formed by tangentially injecting fuel from a nozzle 1 together with oxygen from a nozzle 2 into a cylindrical combustion chamber 3. The mixture passes into a tubular reaction chamber 7 having a refractory lining 10. The cracked gas mixture containing acetylene and ethylene exits through a chamber 12 where it is quenched by injecting a cooling liquid from a nozzle 13. Steam introduced through slits 4 forms a film over the inside surface of the combustion chamber 3 thus reducing heat losses. The combustion chamber 3 which is made of heat-resistant steel, the feed nozzle 5 arid the chamber 12 are provided with cooling water jackets 8, 9 and 14 respectively.</p> |
