초록 ▼

A process to regenerate metal oxide desulfurization sorbents using an oxidizing and reducing atmosphere. The sorbents may be mono- or multi-metallic in nature, and preferably comprise Cu, Ni and/or Co. If desired, secondary metals may be incorporated to increase regeneration efficiency and/or capaci

A process to regenerate metal oxide desulfurization sorbents using an oxidizing and reducing atmosphere. The sorbents may be mono- or multi-metallic in nature, and preferably comprise Cu, Ni and/or Co. If desired, secondary metals may be incorporated to increase regeneration efficiency and/or capacity. Other additives may be used to suppress hydrocarbon cracking. A sorbent containing Zn may be combined with an Fe, Co, Ni, Mo, or W catalyst or a noble metal catalyst and combinations thereof.

대표청구항 ▼

A process to regenerate metal oxide desulfurization sorbents using an oxidizing and reducing atmosphere. The sorbents may be mono- or multi-metallic in nature, and preferably comprise Cu, Ni and/or Co. If desired, secondary metals may be incorporated to increase regeneration efficiency and/or capaci

A process to regenerate metal oxide desulfurization sorbents using an oxidizing and reducing atmosphere. The sorbents may be mono- or multi-metallic in nature, and preferably comprise Cu, Ni and/or Co. If desired, secondary metals may be incorporated to increase regeneration efficiency and/or capacity. Other additives may be used to suppress hydrocarbon cracking. A sorbent containing Zn may be combined with an Fe, Co, Ni, Mo, or W catalyst or a noble metal catalyst and combinations thereof. itial internal resistances are used to compute the logical initial internal resistance through interpolation, and then comparing the logical initial internal resistance with the non-selected current internal resistance, and producing an abnormal condition judgment output in the case of a difference between the logical initial internal resistance and the non-selected current internal resistance being within a predetermined permissible range of values. 5. The deterioration detector according to claim 1, further comprising reset means for initializing information stored in each of data collection period judgment means, initial internal resistance correlation learning storage means and abnormal condition judgment means in response to a reset signal. 6. A method for detecting deterioration of an exhaust gas sensor which is mounted on an exhaust pipe of an internal combustion engine for an automobile and provided so as to control a temperature control of the exhaust gas sensor by an electric heater thereby detecting the deterioration of the exhaust gas sensor, comprising the steps of: computing and storing an initial internal resistance of said exhaust gas sensor and said electric heater; learning and storing a correlation between the initial internal resistance of said exhaust gas sensor and the initial internal resistance of said electric heater; computing and storing a current internal resistance of said exhaust gas sensor and said electric hearer; computing a logical initial internal resistance, by selecting either one of the current internal resistance of said exhaust gas sensor or said electric heater to be a selected initial internal resistance, the selected initial internal resistance and the already learned and stored initial internal resistances are used to compute the logical initial internal resistance through interpolation; and detecting a deterioration condition of said exhaust gas sensor and said electric heater by comparing the logical initial internal resistance with the non-selected one of the current internal resistance of said exhaust gas sensor or said electric heater.