Solids and ash settling aids
The following note is about: GT-1106 solids and ash settling aid for the slurry treatment of catalytic cracking units.
GT-1106 is a solid and ash settling additive for fast and efficient sedimentation and removal of ash, solid particles, and agglomerated polymers from viscous raw materials such as oil slurry.
In the catalytic oil slurry, coking wax oil, coal tar and other raw material products of petrochemical and coal chemical plants, there are various kinds of fine powders, catalyst particles, solid insoluble substances such as coke, sulfides, and polymer coking substances such as colloidal asphaltene, which affect the economic value of raw materials and deep-processed products and the operation cycle of processing technology, equipment and devices, so the safe and efficient separation and removal of such solid particles, ash and impurities is extremely important for the subsequent production and processing of various oil slurries.
* The oil slurry at the bottom of the catalytic tower is a very special by-product produced in the process of oil refining catalytic cracking, which has good economic utilization value, but its economic scale and value-added utilization are greatly limited due to the large number of catalyst powders, sulfur-containing compounds and colloidal asphaltenes. The oil slurry after deashing or sedimentation treatment can be used as raw materials for subsequent coking units to produce high-quality needle coke and improve needle coke grades, or return to catalytic refining to improve light oil yield, and can also be used as fuel for heating furnaces, which can effectively avoid coking and ash deposition in heating furnaces, and improve the operation cycle and system thermal efficiency;
There are also problems such as fine solid powders such as coke powder being brought in in the coking wax oil of the coking unit, especially the problem that the coking wax oil must be removed, and the secondary removal process is mainly used at present.
* The presence of pulverized coal, coke powder and pyrolytic carbon in coal tar has adverse effects on the catalytic hydrogenation of coal tar to produce gasoline and diesel, so the solid content (QI), ash content and impurity content of coal tar must be controlled before processing;
The raw materials of coal products with high value-added such as coal asphalt-based carbon fiber, coal measure needle coke, mesophase asphalt and coal asphalt impregnating agent are all purified coal asphalt, but coal tar contains a large number of QI impurities, which will have a very significant impact on the production of high value-added coal products. In addition, the impurities contained in coal tar are likely to block the processing tools and further affect the quality of products after deep processing, so it is necessary to purify the coal tar to remove the QI impurities contained in it;
Coal tar is not only a by-product of the coal industry, it is also an important chemical raw material, with a wide range of sources and relatively low prices. In addition to the above advantages, it also has many disadvantages, such as amorphous carbon, ash and other granular impurities in the coal tar occupies a certain proportion, the existence of impurities makes the coal tar processing performance is greatly reduced, especially when the coal tar is used as a raw material for the manufacture of particularly high-performance carbon materials, it has more stringent requirements for its impurities. Therefore, coal tar must be purified before it can be further processed to produce higher performance and higher value-added materials.
* By adding solids and ash sedimentation additives GT-1106 to remove catalyst powder, coke powder, pulverized coal and other solid particles, salts, sulfides, colloidal asphaltenes and other impurities in the oil slurry, it can comprehensively utilize the oil slurry, improve the economic value of the oil slurry, reduce the yield of black products, facilitate the deep processing of such products, and improve the economic benefits of enterprises and energy saving and consumption reduction.
GT-1106 solids and ash settling aid, is combined and aggregated with fine particles, salts, colloidal asphaltenes and other impurities in the oil slurry to achieve the purpose of rapid separation and removal of fine particles. Compared with mechanical filtration and other methods, the product can flocculate and collect insoluble matter of different particle sizes, effectively remove fine particles and salts, colloidal asphaltenes, etc., which can not be removed by mechanical filtration due to the limitation of filter pore size, and is suitable for the filtration and sedimentation separation of various insoluble substances, salts and heavy impurities, especially suitable for fine particles and polymer thickeners that are difficult to remove by a single mechanical filtration, and the separation and ashing effect of the agent has three main points:
1) Power dissipation function: GT-1106 solids and ash settling aid, reduces and eliminates the counterion phase by destroying and compressing the electric double layer, so that the thermal movement of solid particles overcomes the electrostatic repulsion between particles and coalesces, which is conducive to the agglomeration of fine particles;
2) Flocculation function: GT-1106 solids and ash settling aid, eliminates the charge of solid particles, frees the particles from the active ingredients of the raw materials, and the interface affinity between GT-1106 and the particles is stronger, resulting in flocculation, which aggregates the very small particles into larger particles and flocculents, and then separates and removes insoluble particles of various particle sizes through filtration or sedimentation;
3) Aggregation function: The aggregation function of GT-1106 solids and ash settling aid, is that while flocculating fine insoluble substances, it can simultaneously attach macromolecular substances such as coagulation colloids, fused aromatic hydrocarbons, salts, sulfides and tars, reduce the content of colloidal asphaltenes, remove salts such as metals and sulfides, and play a role in improving the role of oil slurry as a high-quality raw material, improve the grade of follow-up products such as needle coke, and produce higher economic value;
4) GT-1106 solids and ash settling aid, is an ash-free substance, which is removed along with the solid content, ash and other impurities while adsorbing the aggregated particles, and is no longer stored in the oil slurry, and has no effect on the quality of the oil slurry.
Usually all kinds of oil slurry, coal slurry and other raw materials are a very complex heterogeneous coarse dispersion system, because GT-1106 multi-functional deashing sedimentant destroys and compresses the electric double layer, and has a strong flocculation ability, so the magazine and particles become easy to grow and separate, and then through the filtration system or sedimentation separation, it can effectively remove insoluble matter, glue/coke, etc. of various particle sizes.
Among them, the factors that affect filtration or sedimentation are: mixing temperature, density difference between two phases, viscosity of continuous phase and dispersed phase, concentration of particles, amount of sedimentant added, mixing method and strength, time, filtration or sedimentation temperature, etc.
GT-1106 solids and ash settling aid has a strong active group, strong flocculation ability, it can provide different models according to the properties of raw materials and removal requirements, each component in the product has high thermal stability, good compatibility between components and has efficacy and effect, and will not decompose at the use temperature; It is composed of carbon, hydroxide (nitrogen) elements, does not contain metals, and is ash-free; In the process of the interaction between the product and the fine particles, the particles and the deashing agent are adsorbed and polymerized and then jointly filtered out and sedimented and separated, and the product itself has no effect on the subsequent processing.
* After GT-1106 solids and ash settling aid is added to the catalytic oil slurry, the ash content can be reduced to 0.1-0.02% after removal, and at the same time, metal salts, sulfides, coke, asphaltenes and fused ring polymer substances can be removed, which can greatly improve the quality of the treated oil slurry, and the oil slurry can be used as a high-quality raw material into the needle coke/coking unit, catalytic refining, or as a heating furnace fuel, high-quality oil slurry and fuel oil directly used and sold, etc., especially used as a raw material for the production of high-quality needle coke, which can greatly improve the value of oil slurry;
GT-1106 solids and ash settling aid, can be used for the pretreatment of coking raw materials, hydrogenation raw materials, etc., to remove fine particles, salts, sulfides, colloidal asphaltenes, etc. in raw materials, improve the thermal efficiency of the device, reduce coking and ash accumulation, and improve the quality of follow-up products, especially in the production of high-quality needle coke and other high-quality products, it can effectively pretreat the raw materials of the device, separate and remove impurities, insoluble substances, salts, reduce sulfur content and colloidal asphaltene, etc., so as to meet the requirements of the production unit for raw materials;
GT-1106 solids and ash settling aid, can quickly remove the coke powder contained in the coking wax oil, and can more effectively remove the fine particles in the coking wax oil that cannot be removed by simple filtration, improve the quality of the coking wax oil, and improve the operation efficiency of the equipment.
* GT-1106 solids and ash settling aid, can be added to the coal slurry, coal tar and other raw material settling tanks, or raw material filtration systems, which can greatly improve the QI removal rate and ash removal rate of coal tar, the QI removal rate of coal tar can be increased to more than 95%, and the ash removal rate can reach more than 90%, greatly reducing the content of impurities, metals, salts, sulfides, etc., and improving the quality of raw materials;
After the raw material is added to this multi-effect deashing and sedimenting agent, it can be directly used as a raw material for the production of coal-based needle coke after filtration or sedimentation, and the product quality of needle coke will also be improved and enhanced.
* Not only to provide products with excellent performance, Guitong's technical engineers and scientific researchers can also optimize and adjust product solutions according to the on-site process situation and use environment, and use customized products to meet the different requirements of different customers.
* If you need other different models of this product and use it in different processes, please consult your local service representative and request information.
* For any questions and technical inquiries, please contact your local service representative or send an email to: gtmk33@guitong.com