增產(chǎn)輕烯烴催化裂化助劑DYC-PA
FCC Additive DYC-PA for More Light Olefin
催化裂化裝置一般使用含有擇形分子篩的增產(chǎn)輕烯烴助劑來(lái)多產(chǎn)輕烯烴，同時(shí)也涌現(xiàn)了多種FCC多產(chǎn)丙烯工藝，如國(guó)內(nèi)的HCC，DCC，CPP，F(xiàn)DFCC，MIP-CGP、TMP等工藝，國(guó)外的PetroFCC，Maxofin，Superflex，SCC，HS-FCC，等工藝。這些技術(shù)的反應(yīng)化學(xué)基礎(chǔ)是將汽油餾分擇形裂化生成丙烯等輕烯烴。為了滿足市場(chǎng)對(duì)輕烯烴日益增長(zhǎng)的需要，山東多友科技有限公司與國(guó)內(nèi)科研機(jī)構(gòu)合作，通過(guò)對(duì)活性組分和載體的選擇、改性、活化和制備工藝等多方面的研究，共同研究開發(fā)了性能優(yōu)異的增產(chǎn)丙烯催化裂化助劑DYC-PA。
The additive for more light olefin with shape-selective molecular sieve is applied to FCCU, and meanwhile, several FCC technologies for more propylene emerge such as domestic HCC, DCC, CPP, FDFCC, MIP-CGP, TMP, etc., as well as foreign PetroFCC, Maxofin, Superflex, SCC, HS-FCC, and so forth. The chemical basis for the reaction of such technologies is to produce propylene and other light olefin with shape-selective cracking of gasoline fraction. In order to meet the increasingly demand for light olefin in the market, Shandong Duo You Technology Co., LTD developed FCC additive DYC-PA with excellent performance for more propylene jointly with domestic scientific research institutions through research of active components and carriers in selection, modification, activation preparation technology and other aspects.
一、物化性質(zhì)
I. Physical and Chemical Properties
表1 DYC-PA輕烯烴助劑的質(zhì)量指標(biāo)
Table 1 Quality Index of DYC-PA
從表1的數(shù)據(jù)可以看出，DYC-PA增產(chǎn)輕烯烴裂化助劑的磨損指數(shù)、表觀堆密度和粒度分布等物理性質(zhì)與常規(guī)FCC催化劑相當(dāng)，完全可以適應(yīng)催化裂化裝置正常操作對(duì)催化劑的要求。
Table 1 shows that the attrition index, apparent bulk density, particle size distribution and other physical properties of cracking additive DYC-PA for more light olefin remain the same with conventional FCC catalyst, completely sufficient for requirements of catalyst by normal operation of FCC unit.
二、ACE催化裂化性能評(píng)價(jià)
II. FCC Performance Evaluation of ACE
以重油催化裂化裝置平衡劑作為主劑，分別摻入3.0wt%含量的DYC-PA增產(chǎn)輕烯烴裂化助劑、進(jìn)口增產(chǎn)丙烯助劑和3.0wt%含量的國(guó)內(nèi)常規(guī)產(chǎn)氣助劑，在小型固定流化床裝置（ACE）上進(jìn)行催化性能評(píng)價(jià)，評(píng)價(jià)結(jié)果見表2。
Take RFCC unit poiser as the main agent, mixed with 3.0wt% DYC-PA cracking additive for more olefin and imported propylene enhancing additive, as well as 3.0wt% domestic conventional gas additive, and conduct catalytic performance evaluation on ACE, and see Table 2 for evaluation results.
表2 DYC-PA助劑與同類助劑的固定流化床催化裂化反應(yīng)評(píng)價(jià)結(jié)果
Table2 The Catalytic Performance Evaluation on ACE between DYC-PA and Other Similar Additives
* 原料油：20%VR+80%VGO
Raw oil: 20%VR+80%VGO
表2的評(píng)價(jià)結(jié)果說(shuō)明：
（1）添加DYC-PA助劑對(duì)裝置的干氣、油漿及焦炭產(chǎn)率等基本無(wú)影響，也不會(huì)影響裝置的處理量。
（2）DYC-PA助劑活性較高，所需的添加比例小，單耗低，具有良好的性價(jià)比。
（3）添加DYC-PA助劑能提高催化汽油的辛烷值，對(duì)催化汽油的烯烴含量影響不大。
（4） DYC-PA助劑具有適宜的裂化活性和優(yōu)良的輕烯烴選擇性，可以明顯提高液化氣和C3、C4輕烯烴產(chǎn)率。
Table 2 shows that:
（1）Addition of DYC-PA additive basically has no influence on yield of dry gas, slurry oil and coke in the unit, neither on treatment capacity of the unit.
（2）DYC-PA additive is of comparatively high activity, with small adding proportion, low unit consumption and excellent cost performance.
（3）Addition of DYC-PA additive promotes octane number of catalytic gasoline, with little influence on olefin content of catalytic gasoline.
（4）DYC-PA has suitable cracking activity and excellent light olefin selectivity, greatly raising the yield of LPG as well as C3 and C4 light olefin.
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