Apparatus for steam reforming hydrocarbons
US4810472A · kind A · utility
61Cited by
11References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1987 |
| Grant date | Mar 7, 1989 |
| Priority date | — |
| Expiry date | Mar 23, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2203/82
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An apparatus for conducting an endothermic catalytic reaction wherein closed ended, i.e., double pass, externally heated reformer tubes are employed. The inner return tube are insulated so that there is only a small temperature drop between the reacted gas leaving the catalyst zone and entering the return tubes and the gas leaving the return tubes. The outer, closed end, tubes preferably have fins to increase the surface area, and are surrounded by sheaths through which a heating medium passes. The heating medium is preferably hot gas obtained by subjecting the primary reformed gas to secondary reforming.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.