It is well known that the presence of nitrogen compounds in the liquid hydrocarbon streams has a strong effect on deep hydrodesulfurization (HDS) and other subsequent processes. The pre-denitrogenation by the adsorption is a promising method to solve this problem. In the present study, adsorptive denitrogenation of light cycle oil (LCO) over the carbon-based adsorbents was conducted in both batch and flow adsorption systems. The effects of the physical and chemical properties of the carbon materials as well as the adsorption conditions on the adsorption performance were examined. It was found that some activated carbons could efficiently remove the nitrogen compounds from LCO. Oxidative modification of carbon materials greatly enhanced the adsorption capacity and selectivity for nitrogen compounds, but not for the coexisting sulfur compounds. The regeneration of the spent activated carbon by solvent washing was also studied.
|Original language||English (US)|
|Journal||ACS National Meeting Book of Abstracts|
|State||Published - 2011|
All Science Journal Classification (ASJC) codes
- Chemical Engineering(all)