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Issue:
EFFECT OF CALCIUM ON FCC CATALYST AND STUDY ON CALCIUM-TOLERANT ADDDITIVES
Author(s):
HOU Dian-guo
,
WANG Xie-qing
Pages:
13
-
18
Year:
2000
Issue:
4
Journal:
ACTA PETROLEI SINICA(PETROLEUM PROCESSING SECTION)
Keyword:
催化裂化催化剂
;
抗钙助剂
;
磷酸铝
;
Abstract:
环烷酸钙和硝酸钙对催化裂化催化剂的活性有不利影响,尤其在钙含量高于1.6%时,影响较大.环烷酸钙对催化剂活性的影响小于硝酸钙.X射线衍射分析表明,工业平衡催化剂和结块状催化剂上有硫酸钙.加入含磷和含锆抗钙助剂有一定的抗钙作用.含磷抗钙助剂PA和PO的结构分别为磷酸铝和γ-氧化铝;含磷抗钙助剂与硝酸钙作用形成磷灰石,从而减少了钙对催化剂的影响.
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