Synthesis of Highly Active Ruthenium Sulfide Hydrodesulfurization Catalysts: Effect of Hydrogen in the Activation Process

Nanostructured Ruthenium Disulfide Catalyst High Active in the HDS of DBT

“…Recently our research group achieves to develop a way to synthesized very high catalytic activity RuS 2 catalysts, for the hidrodesulfuration (HDS) of dibenzothiofene (DBT) process [1,2], in agreement to predicted in the past years by different groups [3,4,5,6]. Low sulfurations levels was related with the low catalytic activity in the ruthenium sulfide catalyst due to remaining of metallic ruthenium in the catalyst, this poor sulfuration was associated with hydrogen used during the activation process which is a high reducing agent [7,8,9], nevertheless our group achieved excellent catalytic activity with very high reduction atmosphere of 98% H 2 /H 2 S [10] this means that different characteristics are responsible of high activity in the catalyst for HDS reaction. Nanoestructured RuS 2 catalyst was synthesized according to previous work [9,10] and characterized by electron microscopy, this nanoestructured catalyst has especial interest because it´s high activity in the HDS of DBT process many times better than industrial catalysts.…”

“…Low sulfurations levels was related with the low catalytic activity in the ruthenium sulfide catalyst due to remaining of metallic ruthenium in the catalyst, this poor sulfuration was associated with hydrogen used during the activation process which is a high reducing agent [7,8,9], nevertheless our group achieved excellent catalytic activity with very high reduction atmosphere of 98% H 2 /H 2 S [10] this means that different characteristics are responsible of high activity in the catalyst for HDS reaction. Nanoestructured RuS 2 catalyst was synthesized according to previous work [9,10] and characterized by electron microscopy, this nanoestructured catalyst has especial interest because it´s high activity in the HDS of DBT process many times better than industrial catalysts. The catalyst was synthesized following the procedure used in previous work [9,10] and was activated by 2 hr in a tubular furnace at 673K whit reduction atmosphere of H2S.…”

“…Nanoestructured RuS 2 catalyst was synthesized according to previous work [9,10] and characterized by electron microscopy, this nanoestructured catalyst has especial interest because it´s high activity in the HDS of DBT process many times better than industrial catalysts. The catalyst was synthesized following the procedure used in previous work [9,10] and was activated by 2 hr in a tubular furnace at 673K whit reduction atmosphere of H2S. The resulted catalysts were tested in the HDS of DBT reaction.…”