C - Chemistry – Metallurgy – 10 – J
Patent
C - Chemistry, Metallurgy
10
J
48/26
C10J 3/46 (2006.01)
Patent
CA 1328737
PREVENTION OF FORMATION OF NICKEL SUBSULFIDE IN PARTIAL OXIDATION OF HEAVY LIQUID AND/OR SOLID FUELS (D#79.140 -F) ABSTRACT A sulfur-containing heavy liquid hydrocarbonaceous fuel and/or solid carbonaceous fuel with a nickel, vanadium, and silicon containing ash is mixed with a silicon-containing material, and a copper and/or cobalt-containing material. The mixture is reacted by partial oxidation in a down-flow- ing free-flow unobstructed vertical reaction zone with refractory lined walls at a temperature in the range of about 1800°F to 2900°F. A raw effluent gas stream is produced comprising H2+CO and containing entrained slag comprising the following phases; (i) an alloy phase selected from the group consisting of Cu-Ni, Co-Ni, Cu-Fe, and mixtures thereof; (ii) a silicate phase selected from the group consisting of copper silicate, cobalt silicate, and mixtures thereof; (iii) a spinel phase; and (iv) a fluid oxysulfide phase comprising at least one sulfide from the group consisting of Cu, Co, Fe, and mixtures thereof. There is a reduction in the mole ratio H2S+COS/H2+CO in the raw effluent gas stream. Non-gaseous materials e.g. slag containing substantially no Ni3S2 are separated from the hot raw effluent gas stream from the gasifier.
610907
Smart & Biggar
Texaco Development Corporation
LandOfFree
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