Brand:RISING
MOQ:10
Quantity:8000
TCDTO-1ReformateRefined catalyst
Analternative refined catalyst to clay processing inreformate
High-performance and highly stablecatalyst.Alternative of activated clay ,
Reduced solidwaste, Longoperating cycles ,Capital saving
TCDTO-1 reformate refined catalyst is the highefficient refinedcatalyst designed by CNOOC Tianjin Chemical Research and Design Institute for removing olefin which is produced in reformateoil decvice,TCDTO-1 refined catalyst,called TCDTO-1 reformate refinedcatalyst. It isthe main replacement of activated clay employed inthe pre-treatment equipments of PX process to remove theolefins from C8+ mixedaromatics. It is featured as wide operating temperature range, long life cycle andrepeatedregeneration capability.
Shenzhen RisingTechnology Co.,Ltd is designated as the Authorized Manufacturer andDistributor for this product and its product mix as well.
1). Main advantages of TCDTO-1 Reformate Refined Catalyst
Due to frequent replacement,claywaste pollution, reduced clay resources and highsecurity risks in frequent replacement, high activity refinedcatalyst has become an inevitable choice to replacethe conventionalactivated clayadsorbents.
Compared tothe conventionalactivated clay adsorbents,TCDTO-1 refined catalyst
has the following majoradvantages:
1.1 Longercycle life:
Underthe same conditions of use, single cyclelife is more than8 times that of clay
1.2 Wider temperatureRange :
TCDTO-1 refined catalyst can be activedat the temprature of 130℃.
1.3 Repeatedregeneration
The catalyst can be usedrepeatedly by regeneration, thusthe solid waste
emissions will be reducedfrom 85% to90%;
1.4 DecreasedBromine Index(BI)
The BIdecrease can protect thesubsequentequipments, andthe extendedoperating cycle can reducethe frequency ofmaintenance.
2). TCDTO-1 Refined CatalystSpecifications Descriptions
2.1 What isTCDTO-1 RefinedCatalyst Appliance Principle?
Thecore active componentof TCDTO-1is molecularsieve. As with activatedclay, molecular sieves refined catalyst alsoadsorb the olefins with stronggerpolarity in reforming aromaticsthrough porous material, so as to achievethe purpose of refining. However,molecular sieves have a longer operation cycle life than claydue to higher acid content, better acid distribution,and stronger and more stable acidity ; , meanwhile,due to their uniquenature, sieves can be repeatedlyregenerated.
2.2 The Main Physical Indexesof TCDTO-1 RefinedCatalyst
TheMain Physical Indexes ofTCDTO-1 Refined Catalysts arelisted as follows . They can also becustomerized .
Table 2.1 Refined Catalyst Physical Indexes
| Items | Units | Indexes | |
| Shape | white strip | ||
| Diameter | mm | Φ2-3×5-15 | |
| RATE OFWEAR | % | ≤0.1 | |
| Compressive strength | crush strength | N/cm | ≥80 |
| coefficient of variation(C.V.) OF Crushstrength | ≤0.4 | ||
| StackingDensity | g/ml | 0.55-0.60 | |
2.3 Where are TCDTO-1Refined Catalyst Applied ?
TCDTO-1is developed for PX frontpurification device, currently applicableto C8+ above feedrefining process in the reforming towerbottom. Olefin
andcolloidcontent in feed have agreat
effect on single cycle life of refinedcatalyst. Its applicable feedindicators
are as follows:
Table 2.2 indicators for reactorfeed
| Items,Units | Indicators |
| Bromine index mg/100g | 400-2000 |
| Colloid mg/100g | ≤20 |
Inlettemperature and bromine indexaffect single cycle life of refinedcatalyst. Matching process should be paidattention to when used.
2.4 TCDTO-1Refined Catalyst operatingConditions
AccordingtoTCDTO-1 catalystrefining principle, temperature rising and pressureincreasing benefit the operation, but ingeneralTCDTO-1 catalyst become active at130℃, in order toextend the life of refinedcatalyst, operate at low temperatureinitially. Operating pressurerequirements are similar to clay, butensure the feed is in the liquid state,therefore the reaction pressure should beadjusted according to the catalystoperating temperature. The refiningprocess recommends operating conditionsto be at the maximum pressure the deviceallows, under high pressure, the singlecycle life of the refined catalystcan be appropriately extended.
Table2.3 T-1Refined CatalystOperating Process Indicators
| Items,Units | Indicators |
| Reactor pressureMPa(G) | 1.0-2.5 |
| WHSV,h-1 | 0.5-2.0 |
| normal operating temperature ℃ | 130-210 |
2.5 PerformanceGuarantee
Oil Index after TCDTO-1 Refined Catalyst Process as table below:Table2.4 Oil IndexafterTCDTO-1Refined CatalystProcess
| No. | Components | Unit | Value |
| 1 | feed Bromine index | single cyclelife,month | ≥8 |
| 400-600mgBr/100g | |||
| 2 | feed Bromine index | single cyclelife, month | ≥6 |
| 600-800mgBr/100g | |||
| 3 | feed Bromine index | single cyclelife, month | ≥4 |
| 700-1200mgBr/100g | |||
| 4 | feed Bromine index | single cyclelife, month | ≥3 |
| ≥1000mgBr/100g |
According topreliminary tests,deactivated refined catalyst can be reused afterregeneration, with no significantdecline in activity afterregeneration, at the same time, accordingto the changes of physicalindicators, we suggest that the frequencyof regeneration can be more than 3times.
3).Successful Cases :
3.1 TCDTO-1 refinedcatalyst has achievedindustrial applications in the 1 milliontons/ year PX devices ofCNOOC Huizhou Refinery sinceNovember 2011, and has so far beenrunning
at low temperature. With conditions offeed Bromine index above 600 ~ 1900mgBr/100g (an average of about 1200 mgBr/100g),refined catalyst outlet Bromine Index is≤ 20 mgBr/100g, xylenere-distillation tower top BromineIndex shows ≤ 1.0mgBr /100g, other outletindicators are basically the same as activatedclay.
3.2 TCDTO-1is also widely used in
China Petroleum & Chemical Corporation Shanghai Branch, ChinaPetroleum & Chemical Corporation Tianjin Branch, ChinaPetroleum & Chemical Corporation Jinling Branch,etc.
