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

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.

The invention discloses a catalyst regeneration method capable of reducing carbon dioxide discharge. 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 enters 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, flue gas orderly enters into a flue gas energy recovery system and a carbon dioxide separation system and after carbon dioxide separation, a capturing process is carried out; and the regenerated catalyst is directly returned 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.

The invention discloses a catalyst regeneration method capable of reducing carbon dioxide discharge. The catalyst regeneration method is characterized in that a catalyst with coke is subjected to pure oxygen-used partial regeneration in a first regenerator; the partially regenerated catalyst goes through an external circulating pipe, then enters into a second regenerator below the first regenerator and then is subjected to pure oxygen-used residual coke burning; the catalyst discharged from the first regenerator is fed into an external cooler, then is cooled and then is returned to the second regenerator; after cyclone separation, flue gas orderly enters into a flue gas energy recovery system and a carbon dioxide separation system and after carbon dioxide separation, a capturing process is carried out; and the regenerated catalyst is directly returned 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.

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.

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.

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.

The invention discloses a catalyst regeneration method capable of reducing carbon dioxide discharge. The catalyst regeneration method is characterized in that a catalyst with coke goes up in a coke combustion pipe by being carried by pure oxygen and undergoes a coke combustion reaction, and the coke combustion ratio in a coke combustion pipe is in a range of 30-50%; the catalyst discharged from the coke combustion pipe is subjected to pure oxygen-based residual coke burning; after cyclone separation, flue gas is orderly fed into a flue gas energy recovery system and a carbon dioxide separation system; after carbon dioxide separation, a capturing process is carried out; and the regenerated catalyst is directly returned 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.

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.

The invention discloses a regeneration method of a coking catalyst. The method comprises the steps as follows: the coking catalyst is sent into a riser regenerator to be sequentially alternately contacted with at least one stream of oxygen-rich gas and at least one stream of oxygen-containing gas and regenerated, and a regenerated catalyst is obtained, wherein 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; the regenerated catalyst is sent into a dense phase bed buffer for buffer treatment, and the dense phase bed buffer is led out. With the adoption of the method, 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.

The invention relates to a catalyst regeneration method able to reduce carbon dioxide emission and improve selectivity. The method includes: letting a char-containing catalyst move upward in a charring pipe under carrying by a pure oxygen gas to undergo coke combustion reaction, keeping the charring ratio in the charring pipe at 30-50%, making the catalyst coming from the charring pipe burn up the residual coke through pure oxygen, subjecting the flue gas to cyclone separation, then letting the separated flue gas enter a flue gas energy recovery system and a carbon dioxide separation system, separating carbon dioxide and then performing capturing, subjecting the regenerated catalyst to cooling and activation, then leading the regenerated catalyst into a reactor to undergo recycling. The method not only can make the catalyst regenerate completely and make the catalyst activity distribution more uniform so as to reduce the catalytic cracking by-product coke and dry gas yields, but also can greatly reduce carbon emission, or even reach zero carbon emission.

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.

The invention discloses a catalytic cracking technology and a device for reducing olefins in gasoline. The catalytic cracking technology comprises the following steps that a regenerated catalyst is divided into two groups and the two groups are fed into a reaction sedimentation device and undergo contact reactions respectively with heavy feedstock and inferior gasoline feedstock; reaction productflows obtained from the previous step are separated; the separated reaction product oil gas is fed into a fractionation system to be fractionated and the separated catalyst needing to be regenerated is fed into a tube-type burning device to be subjected to burning regeneration; the regenerated catalyst obtained by the previous step is fed into a cyclone separator in a regenerator to be subjected to separation of the regenerated catalyst from flue gas; then the separated flue gas is discharged from the regenerator and the separated semi-regenerated catalyst is fed into a regenerator catalyst dense bed to be subjected to burning regeneration; and the regenerated catalyst obtained by the previous step is recycled.

The invention discloses a hydrocarbon conversion catalyst regeneration burning method and a regenerator burning area structure, and solves the problems that a hydrocarbon conversion catalyst burning area has a temperature runaway risk and the like in the prior art. The method comprises the following steps of: introducing a catalyst to be regenerated into a radial catalyst moving bed burning area by means of gravity, contacting oxygen-containing regeneration gas, and burning carbon deposit on the catalyst; and introducing into a chlorine oxidation area under the action of gravity, wherein a catalyst moving bed in the burning area is provided with a quick firing section, a transition section and a superheat section from top to bottom in turn; and the thickness ratio of catalyst beds in the quick firing section and the superheat section is 0.25-1 and the height ratio is 1-8.

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.

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 dilute phase tube, then enters 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, 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 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.