Mineral oils: processes and products – Chemical conversion of hydrocarbons – Reforming
Patent
1996-08-23
1999-03-09
Caldarola, Glenn
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Reforming
208133, 208142, 208145, 208 64, 208 80, C10G 3504, C10G 5106
Patent
active
058795375
ABSTRACT:
A multistage catalytic hydrocarbon conversion system is disclosed in which hydrocarbons flow serially through at least two reaction zones and through which catalyst particles move. Where three reaction zones are used, the effluent stream from the first reaction zone is split between the second and third reaction zones. One portion of the effluent stream is combined with hydrocarbons that bypassed the first reaction zone, and the combined stream is passed to the second reaction zone. The other portion of the first reaction zone effluent stream and at least a portion of the effluent stream of the second reaction zone are passed to the third reaction zone. This invention is applicable to processes where the first and second reaction zones are susceptible to pinning in that this invention decreases the mass flow through the first and second reaction zones while nevertheless maintaining high hydrocarbon conversion.
REFERENCES:
patent: 4104149 (1978-08-01), Veinerman et al.
patent: 4325806 (1982-04-01), Peters
patent: 4325807 (1982-04-01), Peters
Bullock In Suk
Caldarola Glenn
McBride Thomas K.
Moore Michael A.
Tolomei John G.
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