Steam cracking of hydrotreated and hydrogenated hydrocarbon feeds
US6210561A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 1997 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | May 8, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G69/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An integrated process for converting a hydrocarbon feedstock having components boiling above about 100.degree. C. into steam cracked products is described. The process first involves passing the feedstock to a hydrotreating zone to effect substantially complete decomposition of organic sulfur and/or nitrogen compounds. The product from the hydrotreating zone is passed to an aromatics saturation zone. The product is then passed to a steam cracking zone. Hydrogen and C.sub.1 -C.sub.4 hydrocarbons, steam cracked naphtha, steam cracked gas oils and steam cracked tar are recovered. The amount of steam cracked tar produced is reduced by at least about 30 percent, and the amount of steam cracked tar produced is reduced by at least about 40 percent, basis the starting hydrocarbon feedstock which has not been subject to hydrotreating and aromatics saturation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.