Method to alter coke morphology using metal salts of aromatic sulfonic acids and/or polysulfonic acids
US7794587B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Jan 22, 2008 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | Aug 20, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10B57/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for altering coke morphology in a delayed coking process of heavy oil is provided. An effective amount of oil dispersible or oil soluble metal salts of aromatic sulfonic acids and/or polysulfonic acids is added or contacted with the resid or heavy oil at a point before or after the step of heating the heavy oil to coking temperatures. The addition of additives facilitates the formation of shot coke and inhibits the formation of sponge coke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.