发明名称 |
Método de recuperar materiais, e, processos para separar um catalisador dispersado de um líquido de hidrocarboneto, para recuperar metais catalíticos do catalisador dispersado suspenso em óleo pesado e para converter catalisador dispersado suspenso em óleo pesado em um material tipo coque. |
摘要 |
<p>A method for recovering metals from a spent dispersed catalyst originating from a Group VIB metal sulfide catalyst containing at least a Group VB and Group VIII metal for hydrocarbon oil hydroprocessing is disclosed. In one embodiment, the method comprises the steps of: pyrolyzing a stream containing spent dispersed catalyst in heavy oil to provide one or more lighter oil products and a coke-like material; contacting the stream comprising the used dispersed catalyst with a leaching solution containing ammonia and air to dissolve the group VIB metal and the Group VIII metal into the leaching solution at sufficient temperature and pressure; forming a slurry containing at least a group VIB metal complex and at least a group VIII metal complex, ammonium sulfate and solid residue containing at least a Group VB metal complex and coke; separating and removing the solid residue containing ammonium metavanadate and coke from the pressure leach solution (PLS); precipitating from the PLS at least a portion of the Group VIB metal and at least a portion of the Group VIII metal by controlling the pH at a pre-selected pH to selectively precipitate as metal complexes the Group VIB and Group VIII metals.</p> |
申请公布号 |
BRPI0819638(A2) |
申请公布日期 |
2015.05.05 |
申请号 |
BR2008PI19638 |
申请日期 |
2008.11.27 |
申请人 |
CHEVRON U.S.A INC. |
发明人 |
RAHUL S. BHADURI;CHRISTOPHER A. POWERS;DONALD H. MOHR;BRUCE E. REYNOLDS;JOSE GUITIAN LOPEZ |
分类号 |
B01J23/68;B01J23/94 |
主分类号 |
B01J23/68 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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