Sulphur and viscosity reductions in heavy hydrocarbons by subcritical water processing
| Autor: | Michel Cuijpers, Michael Boot, M Michael Golombok, NG Niels Deen |
|---|---|
| Přispěvatelé: | Power & Flow, Group Deen |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Chemical substance
Analytical chemistry chemistry.chemical_element 02 engineering and technology 010502 geochemistry & geophysics 01 natural sciences law.invention Physics::Fluid Dynamics Sulphur 020401 chemical engineering Magazine law Enhanced cracking SDG 7 - Affordable and Clean Energy 0204 chemical engineering Astrophysics::Galaxy Astrophysics 0105 earth and related environmental sciences Downstream processing Viscosity Subcritical water Geotechnical Engineering and Engineering Geology Sulfur Fuel Technology chemistry Molar mass distribution Water treatment Volatility (chemistry) Pyrolysis SDG 7 – Betaalbare en schone energie |
| Zdroj: | Journal of Petroleum Science and Engineering, 172, 1069-1076. Elsevier |
| ISSN: | 0920-4105 |
| Popis: | Viscosity and sulphur content are two important properties of heavy hydrocarbons for downstream processing. Both properties can be significantly reduced in value by processing in subcritical water. Subcritical water has advantages over steam recovery methods in terms of viscosity and sulphur reduction as well as energy consumption. In order to understand the mechanism of subcritical water treatment, the chemical structure of pre- and post-processed heavy hydrocarbons are compared to each other. For subcritical water processing, viscosity reduction coincides with a reduction in average molecular weight, average carbon chain length between branching points, and sulphur content, along with an increase in volatility and H2S production. This suggests that not only are C–C bonds cracked, but also C–S-(C) bonds. Subsequent comparison of subcritical water results with those obtained for pyrolysis treatment shows that the former is faster and more effective. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect