Mineral oils: processes and products – Chemical conversion of hydrocarbons – With preliminary treatment of feed
Patent
1977-06-06
1978-05-23
Crasanakis, George
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With preliminary treatment of feed
208254R, 208254H, C10G 2512, C10G 2300
Patent
active
040909514
ABSTRACT:
A method for reducing the nitrogen content of a syncrude feed obtained from at least one of oil shale, tar sands, and coal wherein syncrude is mixed with an adsorbent which is effective for adsorbing nitrogen materials from the syncrude feed and also effective as a catalytic cracking catalyst for said syncrude feed. The mixture is settled into a first phase of low nitrogen syncrude material and a second phase of adsorbent and high nitrogen syncrude feed. The first phase can be subjected to additional light or mild hydrotreating, i.e. low temperature, high space velocity, etc. The second phase is stripped to separate low nitrogen syncrude material which is combined with the hydrotreated low nitrogen material to form a first low nitrogen syncrude product. The stripped second phase is catalytically cracked to produce a second low nitrogen syncrude product. The adsorbent from the cracking step is regenerated by heating to at least 1000.degree. F in the presence of air or oxygen and the regenerated adsorbent is used either in the mixing step or the cracking step of the process.
REFERENCES:
patent: 2744053 (1956-05-01), Kay et al.
patent: 2962435 (1960-11-01), Fleck et al.
patent: 2984620 (1961-05-01), Fleck et al.
patent: 3189539 (1965-06-01), Sieg
Atlantic Richfield Company
Crasanakis George
MacDonald Roderick W.
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