发明名称 |
METHOD OF COATING INNER WALLS OF REACTOR TUBES IN HYDROCARBON PYROLYSIS REACTOR |
摘要 |
FIELD: methods of coating inner walls of tubes. SUBSTANCE: proposed method includes stage of settling of metal alkoxide and chromium compound from vapor phase of mixed solution on inner walls at simultaneous introduction of carrier at flow rate of 1-5000 kg/h/coil at temperature of 600-900 C and pressure of 0-3 kgf/sq cm for forming buffer layer on inner walls and settling of metal alkoxide on buffer layer as barrier, as well as settling of alkali metal or alkali-earth metal from vapor phase; it may be also mixed with coke-removing layer on barrier. Coke-removing layer may be additionally provided on diffusion barrier. EFFECT: increased duration of reactor operating cycle; low cost of coke burning process; increased productivity of target products. 14 cl, 2 dwg, 4 ex |
申请公布号 |
RU2212283(C2) |
申请公布日期 |
2003.09.20 |
申请号 |
RU20010128888 |
申请日期 |
2000.10.17 |
申请人 |
SK KORPOREJSHN |
发明人 |
KANG SIN CHEOL;CHOJ AKHN SEOP;CHO DONG KHIUN;CHOJ SUN |
分类号 |
B05D7/22;B01J19/00;B01J19/24;B05D7/24;C10G9/16;C10G9/20;C23C16/02;C23C16/04;C23C16/40 |
主分类号 |
B05D7/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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