| 摘要 |
<p>Synthesis gas is produced by the partial oxidation of a fuel feedstock comprising a heavy liquid and/or petroleum coke having a nickel, iron, and vanadium-containing ash. A copper-containing additive is introduced into the reaction zone along with the feed. The additive combines with at least a portion of the nickel and iron constituents and the sulfur found in the feedstock to produce a liquid phase washing agent that collects and transports at least a portion of the vanadium-containing oxide laths and spinels and other ash components out of the reaction zone. In another embodiment, a minor amount of a second additive comprising a compound of an element selected from the group consisting of iron, calcium, magnesium, chromium, and mixtures thereof is introduced into the partial oxidation reaction zone along with the fuel feedstock and the copper-containing additive. In still another embodiment, the copper-containing additive with or without a supplemental compound of an element selected from the group consisting of iron, calcium, magnesium, chromium, and mixtures thereof is uniformly dispersed in petroleum coke having a nickel, iron, and vanadium-containing ash. By this method molten slag having a reduced viscosity and containing the nickel, iron, and vanadium-containing impurities from the feedstock are readily removed from the partial oxidation gas generator at a lower temperature. Further, the life of the refractory lining of the partial oxidation gas generator is extended.</p> |
