石油学报（石油加工）
石油學報（石油加工）
석유학보（석유가공）
Acta Petrolei Sinica (Petroleum Processing Section)
2015年
5期
1164-1170
,共7页
待生剂分配器%槽式%不均匀指数%再生器%催化裂化%流化床
待生劑分配器%槽式%不均勻指數%再生器%催化裂化%流化床
대생제분배기%조식%불균균지수%재생기%최화열화%류화상
spent catalyst distributor%slot%heterogeneity index%regenerator%FCC%fluidized bed
针对大型催化裂化再生强化的需要，提出了一种新型的槽式待生剂分配器，在大型冷模实验装置上对其性能进行了系统的评价，并考察了操作条件和结构参数对主要性能指标的影响规律，还与前期研究的两种传统分配器进行了性能对比。结果表明，该型分配器在操作气速大于临界表观气速的条件下即可达到很高的颗粒分配均匀性和颗粒输送能力，而其他因素对其性能影响不大。考虑到工业圆形再生器的实际情况，提出了1个修正的不均匀指数，可以更好地满足工业待生剂分配器设计的需要。和传统船型和管式分配器的性能对比，新型槽式待生剂分配器不仅具有更好的颗粒分配均匀性，而且在颗粒输送能力和操作弹性两方面也具有显著的优势，因为它更好地解决了分配器内颗粒的流动性问题。
針對大型催化裂化再生彊化的需要，提齣瞭一種新型的槽式待生劑分配器，在大型冷模實驗裝置上對其性能進行瞭繫統的評價，併攷察瞭操作條件和結構參數對主要性能指標的影響規律，還與前期研究的兩種傳統分配器進行瞭性能對比。結果錶明，該型分配器在操作氣速大于臨界錶觀氣速的條件下即可達到很高的顆粒分配均勻性和顆粒輸送能力，而其他因素對其性能影響不大。攷慮到工業圓形再生器的實際情況，提齣瞭1箇脩正的不均勻指數，可以更好地滿足工業待生劑分配器設計的需要。和傳統船型和管式分配器的性能對比，新型槽式待生劑分配器不僅具有更好的顆粒分配均勻性，而且在顆粒輸送能力和操作彈性兩方麵也具有顯著的優勢，因為它更好地解決瞭分配器內顆粒的流動性問題。
침대대형최화열화재생강화적수요，제출료일충신형적조식대생제분배기，재대형랭모실험장치상대기성능진행료계통적평개，병고찰료조작조건화결구삼수대주요성능지표적영향규률，환여전기연구적량충전통분배기진행료성능대비。결과표명，해형분배기재조작기속대우림계표관기속적조건하즉가체도흔고적과립분배균균성화과립수송능력，이기타인소대기성능영향불대。고필도공업원형재생기적실제정황，제출료1개수정적불균균지수，가이경호지만족공업대생제분배기설계적수요。화전통선형화관식분배기적성능대비，신형조식대생제분배기불부구유경호적과립분배균균성，이차재과립수송능력화조작탄성량방면야구유현저적우세，인위타경호지해결료분배기내과립적류동성문제。
To achieve high‐efficiency catalyst regeneration in large‐scale industrial FCC unit ,a new slot spent catalyst distributor was proposed .Its performance was systematically evaluated in a large cold model unit .T he effects of operating and structural factors on the main performance parameters were also investigated .Finally ,a systematic performance comparison was carried out among the new slot distributor and the other two traditional distributors studied previously .The experimental results indicated that there was a critical superficial gas velocity in the new slot distributor ,beyond w hich good uniformity of solid distribution and high capacity of solid transportation could be both maintained .Other operating and structural factors had little effect on its performance .In view of the cylindrical vessels in industrial FCC regenerators ,a modified heterogeneity index was proposed , w hich can better match the requirement in designing an industrial spent catalyst distributor . Compared with the traditional boat and pipe spent catalyst distributors ,the new slot distributor is much more advantageous comprehensively ,e. g .in the uniformity of solid distribution ,the capacity of solid transportation and operating flexibility ,because of its better flowability .
