Preparing fluid catalytic cracking catalyst additive composition involves mixing alumina precursor, phosphorous compound, and water at first predetermined temperature for first predetermined time period followed by aging for time period to obtain aluminophosphate slurry
	DAS A K; MANDAL S; RAVICHANDRAN G; CHINTHALA P K; JOSHI M B; DURAISWAMI D; MADDILA A K
	2023-05-30
专利权人	RELIANCE IND LTD (RELN-C)
申请日期	2023-05-30
专利号	IN202321037309-A
成果简介	NOVELTY - Preparing fluid catalytic cracking (FCC) catalyst additive composition involves (i) mixing alumina precursor, phosphorous compound, and water at a first predetermined temperature for a first predetermined time period followed by aging for a time period in the range of 1-4 hours to obtain an aluminophosphate (AlPO) slurry, (ii) mixing aluminophosphate (AlPO) slurry and a group IVB metal oxide solution at a second predetermined temperature for a second predetermined time period to obtain a metal incorporated aluminophosphate (M-AlPO) slurry, (iii) mixing clay and silica precursor with water to obtain a binder slurry, (iv) separately, mixing zeolite, (v) adding the zeolite-phosphate slurry to the binder slurry under stirring to obtain a homogeneous zeolite-binder slurry, (vi) adding the M-AlPO slurry to the homogeneous zeolite-binder slurry under stirring followed by aging for a time period in the range of 30-90 minutes to obtain a resultant slurry. USE - Method for preparing fluid catalytic cracking (FCC) catalyst additive composition. ADVANTAGE - The composition has a comparatively low attrition rate and a high surface area, simple and economical, provides higher yields of propylene and liquefied petroleum gas (LPG), comparatively high zeolite and matrix surface area in obtained FCC catalyst additive and also after hydrothermal deactivations, improves zeolite retention properties over several reaction-regeneration cycles. DETAILED DESCRIPTION - Preparing fluid catalytic cracking (FCC) catalyst additive composition involves (i) mixing alumina precursor, phosphorous compound, and water at a first predetermined temperature for a first predetermined time period followed by aging for a time period in the range of 1-4 hours to obtain an aluminophosphate (AlPO) slurry, (ii) mixing aluminophosphate (AlPO) slurry and a group IVB metal oxide solution at a second predetermined temperature for a second predetermined time period to obtain a metal incorporated aluminophosphate (M-AlPO) slurry, (iii) mixing clay and silica precursor with water to obtain a binder slurry, (iv) separately, mixing zeolite, phosphorous compound and water followed by aging for a time period in the range of 30-90 minutes to obtain a zeolite-phosphate slurry, (v) adding the zeolite-phosphate slurry to the binder slurry under stirring to obtain a homogeneous zeolite-binder slurry, (vi) adding the M-AlPO slurry to the homogeneous zeolite-binder slurry under stirring followed by aging for a time period in the range of 30-90 minutes to obtain a resultant slurry, (vii) spray drying the resultant slurry to obtain a spray dried micro spherical particles, and (viii) calcining the spray dried micro spherical particles at a third predetermined temperature for a third predetermined time period to obtain the FCC catalyst additive composition. INDEPENDENT CLAIMS are included for: (1) an FCC catalyst additive composition; and (2) a method for cracking hydrocarbon feed by using a mixture of an FCC catalyst and an FCC catalyst additive, which involves using a ratio in the range of 70-85:15-30 at a temperature in the range of 450-650 °C for a time period in the range of 10-40 seconds to obtain cracked hydrocarbons containing liquefied petroleum gas (LPG) and propylene.
IPC 分类号	B01J-029/82 ; B01J-037/00 ; C10G-011/02
国家	印度
专业领域	能源矿产
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/21747
专题	中国科学院新疆生态与地理研究所
作者单位	RELIANCE IND LTD (RELN-C)
推荐引用方式 GB/T 7714	DAS A K,MANDAL S,RAVICHANDRAN G,et al. Preparing fluid catalytic cracking catalyst additive composition involves mixing alumina precursor, phosphorous compound, and water at first predetermined temperature for first predetermined time period followed by aging for time period to obtain aluminophosphate slurry. IN202321037309-A[P]. 2023.

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