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US 11,421,163 B2Granted
Device and method for desulfurizing crude oil
AssigneeKnauf Gips KG
InventorRolf Hueller
Life of this patent
Estimating the term…
Abstract
A device for desulfurizing crude oil comprises a desulfurization system for sulfur-containing crude oil which forms a hydrogen sulfide-containing acid gas; a system for extracting elemental sulfur and a hydrogen sulfide-containing tail gas as exhaust gas from the acid gas; a device for generating electricity and gypsum from the tail gas; and a gas line system for supplying acid gas from the desulfurization system to the system and to the device, and for supplying tail gas from the system to the device. The gas line system has a gas distributing apparatus which supplies acid gas solely to the system in a first position, supplies acid gas solely to the device in a second position, and supplies a first part of the acid gas to the system and a second part of the acid gas to the device in a distributing position.
Claims19
A device for desulfurizing crude oil, comprising:
- a) a desulfurization system for heavy metal-containing crude oil which, in addition to the desulfurized crude oil, forms a hydrogen sulfide-containing acid gas;
- b) a system for extracting elemental sulfur and a hydrogen sulfide-containing tail gas as exhaust gas from the acid gas of the desulfurization system;
- c) a device for generating electricity and gypsum from the tail gas or the acid gas or from a mixture of the acid gas and the tail gas, the device comprising:
- c1) an electricity generating apparatus comprising a combustion apparatus for combustion of the tail gas or the acid gas or a mixture of the tail gas and the acid gas, wherein energy released during combustion is at least partly used to generate electricity;
- c2) a flue gas desulfurization system for desulfurizing sulfur oxide-containing combustion exhaust gases produced during combustion by forming gypsum;
- d) a gas line system for supplying acid gas from the desulfurization system to the system for extracting elemental sulfur and to the device for generating electricity and gypsum, and for supplying tail gas from the system for extracting elemental sulfur to the device for generating electricity and gypsum;
- d1) wherein the gas line system has a gas distributing apparatus which supplies acid gas solely to the system for extracting elemental sulfur in a first position, supplies acid gas solely to the device for generating electricity and gypsum in a second position, and supplies a first part of the acid gas to the system for extracting elemental sulfur and a second part of the acid gas to the device for generating electricity and gypsum in a distributing position;
- e) a measuring apparatus for determining a composition and/or a calorific value of the gas prior to combustion in the combustion apparatus;
- f) an evaluation apparatus for comparing the determined composition with a predetermined composition or a predetermined composition range and/or for comparing the determined calorific value with a predetermined calorific value or a predetermined calorific value range, and
- g1) a control apparatus and a supply apparatus for natural gas, wherein when a deviation from the predetermined composition and/or composition range or the predetermined calorific value and/or the predetermined calorific value range is determined by the evaluation apparatus, the control apparatus determines an additional proportion of natural gas required for correction and adds to the gas prior to combustion via the supply apparatus.
7 more elements
A method for desulfurizing crude oil using a device for generating electricity and gypsum from a tail gas or an acid gas or from a mixture of the acid gas and the tail gas, the method comprising the following steps:
- a) providing sulfur-containing crude oil;
- b) desulfurizing the sulfur-containing crude oil by means of a desulfurization system, wherein, in addition to the desulfurized crude oil, a hydrogen sulfide-containing acid gas is formed;
- c) adjusting a gas distributing apparatus of a gas line system into a first position or into a second position or into a distributing position, wherein acid gas is supplied solely to the system for extracting elemental sulfur in the first position, acid gas is supplied solely to the device for generating electricity and gypsum in the second position, and a first part of the acid gas is supplied to the system for extracting elemental sulfur and a second part of the acid gas is supplied to the device for generating electricity and gypsum in the distributing position;
- d) generating electricity and gypsum from the tail gas or the acid gas or from a mixture of the acid gas and the tail gas by means of the device for generating electricity and gypsum,
- d1) wherein the tail gas or the acid gas or a mixture of the tail gas and the acid gas is supplied to a combustion apparatus of the electricity generating apparatus and burned there, wherein energy released during combustion is at least partly used to generate electricity;
- d2) wherein sulfur oxide-containing combustion exhaust gases produced during combustion are supplied for flue gas desulfurization by means of a flue gas desulfurization system, and
- d3) wherein gypsum is formed during the flue gas desulfurization;
- e) determining a composition and/or a calorific value of the gas supplied to the device for generating electricity prior to combustion in the combustion apparatus;
- f) comparing at least one of the determined composition with a predetermined composition or a predetermined composition range and the determined calorific value with a predetermined calorific value or a predetermined calorific value range, and
- g) at least one of
- g1) determining and adding to the gas prior to combustion an additional proportion of natural gas required for correction if there is a deviation from the predetermined composition or composition range or from the predetermined calorific value or the predetermined calorific value range, and
- g2) adapting a mix ratio between the tail gas and the second part of the acid gas for correction.
9 more elements
A device for desulfurizing crude oil, comprising:
- a) a desulfurization system for heavy metal-containing crude oil which, in addition to the desulfurized crude oil, forms a hydrogen sulfide-containing acid gas;
- b) a system for extracting elemental sulfur and a hydrogen sulfide-containing tail gas as exhaust gas from the acid gas of the desulfurization system;
- c) a device for generating electricity and gypsum from the tail gas or the acid gas or from a mixture of the acid gas and the tail gas, the device comprising:
- c1) an electricity generating apparatus comprising a combustion apparatus for combustion of the tail gas or the acid gas or a mixture of the tail gas and the acid gas, wherein energy released during combustion is at least partly used to generate electricity;
- c2) a flue gas desulfurization system for desulfurizing sulfur oxide-containing combustion exhaust gases produced during combustion by forming gypsum;
- d) a gas line system for supplying acid gas from the desulfurization system to the system for extracting elemental sulfur and to the device for generating electricity and gypsum, and for supplying tail gas from the system for extracting elemental sulfur to the device for generating electricity and gypsum;
- d1) wherein the gas line system has a gas distributing apparatus which supplies acid gas solely to the system for extracting elemental sulfur in a first position, supplies acid gas solely to the device for generating electricity and gypsum in a second position, and supplies a first part of the acid gas to the system for extracting elemental sulfur and a second part of the acid gas to the device for generating electricity and gypsum in a distributing position;
- e) a measuring apparatus for determining a composition and/or a calorific value of the gas prior to combustion in the combustion apparatus;
- f) an evaluation apparatus for comparing the determined composition with a predetermined composition or a predetermined composition range and/or for comparing the determined calorific value with a predetermined calorific value or a predetermined calorific value range, and
- g) a control apparatus, wherein the control apparatus adapts a mix ratio between the tail gas and the second part of the acid gas for correction.
7 more elements
Dependencies are inferred from the claim text.