Process for endothermic conversion of hydrocarbons, its uses, and a unit for carrying out the process
US6875338B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2001 |
| Grant date | Apr 5, 2005 |
| Priority date | — |
| Expiry date | Jan 2, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S585/912
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention concerns a process for converting hydrocarbons using at least one globally endothermic chemical reaction, in which a hydrocarbon feed successively traverses at least two reaction zones each containing at least one solid catalyst and comprising between said reaction zones an intermediate step, in a non catalytic zone, for reheating the stream (ST) from the first of the two reaction zones prior to its introduction into said second reaction zone, and in which said reheating is carried out in a heat exchanger, with heat transfer essentially by convection using a thermal fluid TF with a coking sensitivity index CS that is less than that of the stream ST, the difference in temperature ΔT between the temperature of the fluid TF at the inlet to the exchanger and the temperature of the stream ST at the heat exchanger outlet being less than 250° C. The invention also concerns the use of said process for converting hydrocarbons and a unit for carrying out the process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.