| 摘要 |
FIELD: oil-and-gas industry.SUBSTANCE: catalyst for steam conversion of hydrocarbons is a multilayered composition comprising the layers consistently located on the metal carrier: buffer, consisting of the oxide selected from the group TiO, SiO, ZrO, AlOor their combination, interphase composition, wt %: BaO - 1, LaO- 1,5, AlOup to 100, catalytic active composition, wt %: 1 - BaO, 1.5 - LaO, 5 - Rh, AlOup to 100. The method of preparation of the steam conversion catalyst includes consecutive application on the metal carrier of buffer layer, interphase layer and catalytic active layer. The layers are applied by fine drop dispersion with the subsequent heat treatment of the respective solutions and suspensions. The method of steam conversion of hydrocarbons is performed using the catalyst of steam conversion according to the reaction: CH+HO=CO+3H+226 KJ/mol at the molar ratio HO/C, equal to 2.4-2.6, temperature 600-900°C, pressure 140,000-774,000 Pa and time of contact of steam-gas mix with the catalyst 0.02-0.12 s.EFFECT: obtaining of the catalyst for conversion of hydrocarbons with hyperactivity, stability and resistance to coke production under operating conditions at high temperatures.7 cl, 4 dwg, 1 tbl |
