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32results about How to "Increased charring efficiency" patented technology

Fluidised bed gas and solid contacting device

The invention discloses a fluidized bed gas-solid contacting device for the petrochemical processing catalytic conversion equipment, to resolve the problem of the existing device that the installation, maintain and maintenance is difficult and the stripping efficiency is low. The contacting device is mounted at least with two groups of filler layers along the axial of tunnel body (5), and the there is gap between the adjacent filler layers. Each group of filler layers is composed of a first filler layer (1) at the upper and a second filler layer (2) at the lower, which are contacted and supported on the support rack (3). The first filler layer is a filler layer with stereoscopic grid channels composed of rows of stripe boards, two adjacent of which has a different trend of the tilt with the horizontal plane and is intercrossed. The second filler layer is a filler layer with erective channels, and composed of stripe board groups, which is perpendicular to horizontal plane and intercrossed. The invention can be used as a steam stripping machine to steam strip the oil gas, hydrocarbon compound or gas impurities in the catalyst, and also used as a regenerator for the regeneration of catalyst.
Owner:LUOYANG PETROCHEMICAL ENG CORP SINOPEC

Coke-burning method for hydrocarbon conversion catalyst regeneration and structure of coke-burning area of regenerator

ActiveCN102218353AReduce the risk of burning out the inner screen due to overheatingThe overall thickness is thinCatalyst regeneration/reactivationChemistryTemperature jump
The invention discloses a coke-burning method for hydrocarbon conversion catalyst regeneration and a structure of a coke-burning area of a regenerator. The invention solves the disadvantage of the temperature jump risk in a coke-burning area of a hydrocarbon conversion catalyst in the prior art. The method comprises the following steps: allowing a catalyst to be regenerated to enter a coke-burning area of a radial catalyst moving bed under gravity, allowing the catalyst to contact an oxygen-containing regenerating gas and burning out coke deposits on the catalyst, and allowing the catalyst to enter a chlorine oxidation area, wherein the coke-burning area of the catalyst moving bed comprises an inner screen and an outer screen; the lower diameter is larger than the upper diameter of the outer screen; the upper and the lower parts of the outer screen are connected by a conical structure; the outer screen with different diameters and the inner screen forms, from up to down, an upper quick-burning section, an intermediate transition section, and a lower overheating section of the coke-burning area; and the thickness ratio of the catalyst bed layers of the quick-burning section and the overheating section is 0.25-1, and the height ratio is 1-8.
Owner:CHINA PETROCHEMICAL CORP +1

Catalytic cracking process and device

ActiveCN102212382AIncreased charring capacityIncreased char strengthCatalytic crackingFractionationGasoline
The invention discloses a catalytic cracking process and a catalytic cracking device. A main technical scheme is that: a regenerator is placed on the upper part of a reaction precipitator; a regenerated catalyst from the regenerator downwards enters the reaction precipitator to generate forward or backward contact reaction with raw oil entering the reaction precipitator through a feeding nozzle; after the reaction, the spent catalyst and the generated oil gas are subjected to separation and steam stripping; the generated oil gas subjected to separation and steam stripping enters a fractionating system to perform fractionation; the spent catalyst subjected to separation and steam stripping enters a tube type burning device to burn and regenerate; and the semi-regenerated catalyst regenerated by the tube type burning device enters a regenerator again to regenerate and then is recycled. By the catalytic cracking process and the catalytic cracking device, burning capacity can be enhanced and the treating quantity of raw materials is increased. The catalytic cracking process and the catalytic cracking device have the advantages of low contact temperature of the catalyst and the raw oil, short reaction time, big ratio of the catalyst to the oil, low yield of cracked gas and coke, high yield of gasoline and diesel, high product distributivity, simple device structure, operating flexibility, low energy consumption and the like.
Owner:CHINA PETROCHEMICAL CORP +1

Catalyst regeneration method used for reducing carbon dioxide release and improving selectivity

The invention discloses a catalyst regeneration method used for reducing carbon dioxide release and improving selectivity. The catalyst regeneration method comprises following steps: a carbon-containing catalyst is subjected to partial regeneration in a first regenerator using pure oxygen, and then is delivered into a second regenerator via a U-shaped delivery pipe so as to remove residual coke via combustion using pure oxygen, and smoke obtained from the first regenerator is divided into three parts, wherein a first part of the smoke is cycled into the bottom of the second regenerator, a second part is used for delivering the partially regenerated catalyst from the first regenerator into the second regenerator, and the third part is delivered into a smoke energy recovery system; smoke obtained from the second regenerator and the smoke which is obtained from the first regenerator and is processed via the smoke energy recovery system are combined, are delivered into a carbon dioxide separating system for carbon dioxide separation, and then are collected, and an obtained regenerated catalyst is cooled and activated using a catalyst, and is delivered into a reactor for recycling. The catalyst regeneration method is capable of realizing complete regeneration of the catalyst, reducing carbon release greatly, and even realizing zero carbon release. Catalyst activity distribution is more uniform, so that catalytic cracking product coke yield and dry gas yield are reduced.
Owner:CHINA PETROLEUM & CHEM CORP +1

Catalyst regeneration method capable of reducing carbon dioxide discharge and improving selectivity

The invention discloses a catalyst regeneration method capable of reducing carbon dioxide discharge and improving selectivity. The catalyst regeneration method is characterized in that a catalyst with coke is subjected to pure oxygen-based partial regeneration in a coke combustion tank, and the partially regenerated catalyst goes through a macroporous distribution plate, then is fed into a dense bed of a regenerator and then is subjected to residual coke burning; the dense bed is provided with a cooler for controlling a temperature of the dense bed; after cyclone separation, most of flue gas orderly enters into a flue gas energy recovery system and a carbon dioxide separation system, after carbon dioxide separation, a capturing process is carried out, and a small part of the flue gas is returned to the bottom of the coke combustion tank; and the regenerated catalyst is cooled and activated and then is fed into a reactor for recycle. The catalyst regeneration method realizes complete regeneration of a catalyst and uniform distribution of catalyst activity so that coke as a catalytic cracking by-product and a dry gas yield are reduced. The catalyst regeneration method greatly reduces carbon emission and even realizes zero emission of carbon.
Owner:CHINA PETROLEUM & CHEM CORP +1

A catalyst regeneration method that reduces carbon dioxide emissions and improves selectivity

The invention discloses a catalyst regeneration method capable of reducing carbon dioxide discharge and improving selectivity. The catalyst regeneration method is characterized in that a catalyst with coke is subjected to pure oxygen-based partial regeneration in a coke combustion tank, and the partially regenerated catalyst goes through a macroporous distribution plate, then is fed into a dense bed of a regenerator and then is subjected to residual coke burning; the dense bed is provided with a cooler for controlling a temperature of the dense bed; after cyclone separation, most of flue gas orderly enters into a flue gas energy recovery system and a carbon dioxide separation system, after carbon dioxide separation, a capturing process is carried out, and a small part of the flue gas is returned to the bottom of the coke combustion tank; and the regenerated catalyst is cooled and activated and then is fed into a reactor for recycle. The catalyst regeneration method realizes complete regeneration of a catalyst and uniform distribution of catalyst activity so that coke as a catalytic cracking by-product and a dry gas yield are reduced. The catalyst regeneration method greatly reduces carbon emission and even realizes zero emission of carbon.
Owner:CHINA PETROLEUM & CHEM CORP +1

A catalyst regeneration method to reduce carbon dioxide emissions and improve selectivity

The invention discloses a catalyst regeneration method used for reducing carbon dioxide release and improving selectivity. The catalyst regeneration method comprises following steps: a carbon-containing catalyst is subjected to partial regeneration in a first regenerator using pure oxygen, and then is delivered into a second regenerator, which is arranged under the first regenerator, via an outer circulation pipe so as to remove residual coke via combustion using pure oxygen; the catalyst processed via the first regenerator is delivered into an outer heat supplying device, is cooled and is delivered back to the second regenerator; most smoke is subjected to cyclone separation, and then is delivered into a smoke energy recovery system, and a carbon dioxide separating system successively, and is collected after carbon dioxide separation, and a small amount of smoke is recycled to the bottom of the second regenerator; and an obtained regenerated catalyst is cooled and activated using a catalyst, and is delivered into a reactor for recycling. The catalyst regeneration method is capable of realizing complete regeneration of the catalyst, reducing carbon release greatly, and even realizing zero carbon release. Catalyst activity distribution is more uniform, so that catalytic cracking product coke yield and dry gas yield are reduced.
Owner:CHINA PETROLEUM & CHEM CORP +1

Catalytic cracking process and device

ActiveCN102212382BIncreased charring capacityIncreased char strengthCatalytic crackingGasolineFractionation
The invention discloses a catalytic cracking process and a catalytic cracking device. A main technical scheme is that: a regenerator is placed on the upper part of a reaction precipitator; a regenerated catalyst from the regenerator downwards enters the reaction precipitator to generate forward or backward contact reaction with raw oil entering the reaction precipitator through a feeding nozzle; after the reaction, the spent catalyst and the generated oil gas are subjected to separation and steam stripping; the generated oil gas subjected to separation and steam stripping enters a fractionating system to perform fractionation; the spent catalyst subjected to separation and steam stripping enters a tube type burning device to burn and regenerate; and the semi-regenerated catalyst regenerated by the tube type burning device enters a regenerator again to regenerate and then is recycled. By the catalytic cracking process and the catalytic cracking device, burning capacity can be enhanced and the treating quantity of raw materials is increased. The catalytic cracking process and the catalytic cracking device have the advantages of low contact temperature of the catalyst and the raw oil, short reaction time, big ratio of the catalyst to the oil, low yield of cracked gas and coke, high yield of gasoline and diesel, high product distributivity, simple device structure, operating flexibility, low energy consumption and the like.
Owner:CHINA PETROCHEMICAL CORP +1

A catalyst regeneration method for reducing carbon dioxide emissions

The invention discloses a catalyst regeneration method used for reducing carbon dioxide release. The catalyst regeneration method comprises following steps: a carbon-containing catalyst is subjected to partial regeneration in a first regenerator using pure oxygen, and then is delivered into a second regenerator via a U-shaped delivery pipe so as to remove residual coke via combustion using pure oxygen, and smoke obtained from the first regenerator is divided into three parts, wherein a first part of the smoke is cycled into the bottom of the second regenerator, a second part is used for delivering the partially regenerated catalyst from the first regenerator into the second regenerator, and the third part is delivered into a smoke energy recovery system; smoke obtained from the second regenerator and the smoke which is obtained from the first regenerator and is processed via the smoke energy recovery system are combined, are delivered into a carbon dioxide separating system for carbon dioxide separation, and then are collected, and an obtained regenerated catalyst is directly delivered back into a reactor for recycling. The catalyst regeneration method is capable of realizing complete regeneration of the catalyst, reducing carbon release greatly, and even realizing zero carbon release. Catalyst activity distribution is more uniform, so that catalytic cracking product coke yield and dry gas yield are reduced.
Owner:CHINA PETROLEUM & CHEM CORP +1

Coke-burning method for hydrocarbon conversion catalyst regeneration and structure of coke-burning area of regenerator

ActiveCN102218353BReduce the risk of burning out the inner screen due to overheatingThe overall thickness is thinCatalyst regeneration/reactivationOxygenMoving bed
The invention discloses a coke-burning method for hydrocarbon conversion catalyst regeneration and a structure of a coke-burning area of a regenerator. The invention solves the disadvantage of the temperature jump risk in a coke-burning area of a hydrocarbon conversion catalyst in the prior art. The method comprises the following steps: allowing a catalyst to be regenerated to enter a coke-burning area of a radial catalyst moving bed under gravity, allowing the catalyst to contact an oxygen-containing regenerating gas and burning out coke deposits on the catalyst, and allowing the catalyst to enter a chlorine oxidation area, wherein the coke-burning area of the catalyst moving bed comprises an inner screen and an outer screen; the lower diameter is larger than the upper diameter of the outer screen; the upper and the lower parts of the outer screen are connected by a conical structure; the outer screen with different diameters and the inner screen forms, from up to down, an upper quick-burning section, an intermediate transition section, and a lower overheating section of the coke-burning area; and the thickness ratio of the catalyst bed layers of the quick-burning section and the overheating section is 0.25-1, and the height ratio is 1-8.
Owner:CHINA PETROCHEMICAL CORP +1

A catalyst regeneration method that reduces carbon dioxide emissions and improves selectivity

The invention discloses a catalyst regeneration method used for reducing carbon dioxide release and improving selectivity. The catalyst regeneration method comprises following steps: a carbon-containing catalyst is subjected to partial regeneration in a first regenerator using pure oxygen, and then is delivered into a second regenerator via a U-shaped delivery pipe so as to remove residual coke via combustion using pure oxygen, and smoke obtained from the first regenerator is divided into three parts, wherein a first part of the smoke is cycled into the bottom of the second regenerator, a second part is used for delivering the partially regenerated catalyst from the first regenerator into the second regenerator, and the third part is delivered into a smoke energy recovery system; smoke obtained from the second regenerator and the smoke which is obtained from the first regenerator and is processed via the smoke energy recovery system are combined, are delivered into a carbon dioxide separating system for carbon dioxide separation, and then are collected, and an obtained regenerated catalyst is cooled and activated using a catalyst, and is delivered into a reactor for recycling. The catalyst regeneration method is capable of realizing complete regeneration of the catalyst, reducing carbon release greatly, and even realizing zero carbon release. Catalyst activity distribution is more uniform, so that catalytic cracking product coke yield and dry gas yield are reduced.
Owner:CHINA PETROLEUM & CHEM CORP +1

Catalyst regeneration method used for reducing carbon dioxide release

The invention discloses a catalyst regeneration method used for reducing carbon dioxide release. The catalyst regeneration method comprises following steps: a carbon-containing catalyst is subjected to partial regeneration in a first regenerator using pure oxygen, and then is delivered into a second regenerator via a U-shaped delivery pipe so as to remove residual coke via combustion using pure oxygen, and smoke obtained from the first regenerator is divided into three parts, wherein a first part of the smoke is cycled into the bottom of the second regenerator, a second part is used for delivering the partially regenerated catalyst from the first regenerator into the second regenerator, and the third part is delivered into a smoke energy recovery system; smoke obtained from the second regenerator and the smoke which is obtained from the first regenerator and is processed via the smoke energy recovery system are combined, are delivered into a carbon dioxide separating system for carbon dioxide separation, and then are collected, and an obtained regenerated catalyst is directly delivered back into a reactor for recycling. The catalyst regeneration method is capable of realizing complete regeneration of the catalyst, reducing carbon release greatly, and even realizing zero carbon release. Catalyst activity distribution is more uniform, so that catalytic cracking product coke yield and dry gas yield are reduced.
Owner:CHINA PETROLEUM & CHEM CORP +1

Catalyst regeneration method capable of reducing carbon dioxide discharge and improving selectivity

The invention discloses a catalyst regeneration method capable of reducing carbon dioxide discharge and improving selectivity. The catalyst regeneration method is characterized in that a catalyst with coke is subjected to pure oxygen-based partial regeneration in a first regenerator, and the partially regenerated catalyst goes through a lifting pipe, then is fed into a second regenerator above the first regenerator and then is subjected to pure oxygen-based residual coke burning; flue gas discharged from the first regenerator is divided into two parts, one of the two parts is circularly supplied to the bottom of the second regenerator and the other part of the two parts is fed into a flue gas energy recovery system; flue gas discharged from the second regenerator and the first regenerator flue gas discharged from the flue gas energy recovery system are mixed and the mixed flue gas is fed into a carbon dioxide separation system; after carbon dioxide separation, a capturing process is carried out; and the regenerated catalyst is cooled and activated and then is fed into a reactor for recycle. The catalyst regeneration method realizes complete regeneration of a catalyst and uniform distribution of catalyst activity so that coke as a catalytic cracking by-product and a dry gas yield are reduced. The catalyst regeneration method greatly reduces carbon emission and even realizes zero emission of carbon.
Owner:CHINA PETROLEUM & CHEM CORP +1

A method and system for regenerating a coked catalyst

The invention discloses a regeneration method and system for a coking catalyst. The method comprises the steps as follows: the coking catalyst is sent into a riser regenerator from the bottom of the riser regenerator to be alternately contacted with at least one stream of oxygen-rich gas and at least one stream of oxygen-containing gas from bottom to top and regenerated, and a regenerated catalyst is obtained; the riser regenerator is provided with at least one regeneration section comprising a thin pipe section and a thick pipe section, the thick pipe section in the regeneration section is located above the thin pipe section, the oxygen-rich gas is sent into the riser regenerator from the lower part of the thin pipe section, and the oxygen-containing gas is sent into the riser regenerator from the lower part of the thick pipe section; the oxygen volume content of the oxygen-rich gas is larger than 21vol%, and the oxygen-containing gas is selected from at least one of oxygen, air and flue gas. With the adoption of the method adopting the system, the coking efficiency can be substantially improved, the catalytic cracking selection of the regenerated catalyst can be improved, and the size of the regenerator can be reduced in the same catalyst treatment quantity.
Owner:CHINA PETROLEUM & CHEM CORP +1

A catalyst regeneration method that reduces carbon dioxide emissions and improves selectivity

The invention discloses a catalyst regeneration method capable of reducing carbon dioxide discharge and improving selectivity. The catalyst regeneration method is characterized in that a catalyst with coke is subjected to pure oxygen-based partial regeneration in a first regenerator, and the partially regenerated catalyst goes through a lifting pipe, then is fed into a second regenerator above the first regenerator and then is subjected to pure oxygen-based residual coke burning; flue gas discharged from the first regenerator is divided into two parts, one of the two parts is circularly supplied to the bottom of the second regenerator and the other part of the two parts is fed into a flue gas energy recovery system; flue gas discharged from the second regenerator and the first regenerator flue gas discharged from the flue gas energy recovery system are mixed and the mixed flue gas is fed into a carbon dioxide separation system; after carbon dioxide separation, a capturing process is carried out; and the regenerated catalyst is cooled and activated and then is fed into a reactor for recycle. The catalyst regeneration method realizes complete regeneration of a catalyst and uniform distribution of catalyst activity so that coke as a catalytic cracking by-product and a dry gas yield are reduced. The catalyst regeneration method greatly reduces carbon emission and even realizes zero emission of carbon.
Owner:CHINA PETROLEUM & CHEM CORP +1
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