Process and catalyst system for conversion of C6 aromatics to higher aromatics
AssigneeIndian Oil Corporation Limited
InventorsNayan Das, Mainak Sarkar, Ganesh Vitthalrao Butley, Kalicharan Chattopadhyay, Sarvesh Kumar, Madhusudan Sau
Life of this patent
Estimating the term…
Abstract
A process for the upgrading of hydrocarbon streams, i.e., processing any hydrocarbon feed streams rich in benzene and sulphur compounds. The process for simultaneous hydrodesulfurization and benzene conversion to higher alkylated aromatic molecules (C7 to C10 aromatics), without need of prior treatment like distillation, or sulfur removal. The hydrocarbon feed streams are processed over sulfided metal catalyst impregnated on acid support simultaneously desulfurizes and alkylates the benzene molecules.
Claims17
A process for controlling a percentage of benzene in a hydrocarbon feed stream comprising benzene, the process comprising:
- mixing the hydrocarbon feed stream with an alkylating agent and a sulfiding agent to obtain a mixed hydrocarbon feed stream;
- and
- routing the mixed hydrocarbon feed stream and hydrogen gas to pass over a catalyst in a catalytic reactor to obtain a processed hydrocarbon stream, wherein the catalyst comprises 15-25 wt % of group VIB metals and 4-7 wt % of group VIIIB metals, and wherein the process converts benzene into higher alkylated aromatic molecules and simultaneously results in hydrodesulfurization of the hydrocarbon feed stream in the catalytic reactor.
The process as claimed as claimed 15, wherein an unutilized hydrogen gas is separated in the HPS and removed and recycled back to the catalytic reactor.
The process as claimed as claimed 15, wherein off gases are separated from the LPS, and from the CHPS.
Dependencies are inferred from the claim text.