石油炼制与化工
石油煉製與化工
석유련제여화공
PETROLEUM PROCESSING AND PETROCHEMICALS
2015年
2期
53-57
,共5页
王燕%张涛%周亚松%魏强
王燕%張濤%週亞鬆%魏彊
왕연%장도%주아송%위강
加氢裂化%分子筛%载体%载体复合
加氫裂化%分子篩%載體%載體複閤
가경열화%분자사%재체%재체복합
hydrocracking%molecular sieve%support%support composite
以#分子筛、Y分子筛和无定形硅铝(ASA)为载体组分,考察了加氢裂化催化剂制备过程中,采用不同复合方式制备载体对催化剂理化性质及性能的影响。研究发现,原位复合所制备载体的催化剂比表面积、孔体积、平均孔径低于将分子筛与 ASA进行机械混合所制备载体的催化剂。以大庆减压蜡油的加氢精制油为原料,在温度360℃、压力8.0 MPa、空速2.0 h-1、氢油体积比1000的条件下,原位复合载体的催化剂上转化率、石脑油选择性、化工原料收率低于机械混合方式制备载体的催化剂;而原位复合载体的催化剂上液体收率高于机械混合所制备载体的催化剂。
以#分子篩、Y分子篩和無定形硅鋁(ASA)為載體組分,攷察瞭加氫裂化催化劑製備過程中,採用不同複閤方式製備載體對催化劑理化性質及性能的影響。研究髮現,原位複閤所製備載體的催化劑比錶麵積、孔體積、平均孔徑低于將分子篩與 ASA進行機械混閤所製備載體的催化劑。以大慶減壓蠟油的加氫精製油為原料,在溫度360℃、壓力8.0 MPa、空速2.0 h-1、氫油體積比1000的條件下,原位複閤載體的催化劑上轉化率、石腦油選擇性、化工原料收率低于機械混閤方式製備載體的催化劑;而原位複閤載體的催化劑上液體收率高于機械混閤所製備載體的催化劑。
이#분자사、Y분자사화무정형규려(ASA)위재체조분,고찰료가경열화최화제제비과정중,채용불동복합방식제비재체대최화제이화성질급성능적영향。연구발현,원위복합소제비재체적최화제비표면적、공체적、평균공경저우장분자사여 ASA진행궤계혼합소제비재체적최화제。이대경감압사유적가경정제유위원료,재온도360℃、압력8.0 MPa、공속2.0 h-1、경유체적비1000적조건하,원위복합재체적최화제상전화솔、석뇌유선택성、화공원료수솔저우궤계혼합방식제비재체적최화제;이원위복합재체적최화제상액체수솔고우궤계혼합소제비재체적최화제。
Using #,Y molecular sieve and amorphous silica alumina (ASA)as raw materials for composite support preparation,hydrocracking catalysts with composite supports prepared by different methods were made to see the effect of support on physicochemical properties.It is discovered that the surface area,pore volume and average pore size of the catalyst with composite support made in-situ are lower than that of the catalyst with mechanical mixed molecular sieve and ASA composite support.The conversion rate,naphtha selectivity and chemical raw material yield are lower than the latter at the con-ditions of 360 ℃,8.0 MPa,LHSV of 2.0 h-1 and H2?oil of 1 000 using hydrotreated Daqing VGO as feed,but higher liquid yield than the latter.