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1.发明申请公开(公告)号：US20180133695A1
公开(公告)日：2018-05-17
申请号：US15572507
申请日：2016-03-04
发明人： Chaitanya SAMPARA
CPC分类号： B01J23/63 , B01J21/066 , B01J23/42 , B01J23/6527 , B01J23/83 , B01J23/8986 , B01J35/1038 , B01J37/0201 , B01J37/031 , B01J37/033 , B01J2523/00 , C07C5/27 , C10G11/04 , C10G29/205 , C10G45/00 , C10G45/60 , C10G47/04 , C10G50/00 , B01J2523/31 , B01J2523/48 , B01J2523/72 , B01J2523/828 , B01J2523/842 , B01J2523/24 , B01J2523/32 , B01J2523/3712 , B01J2523/3737 , B01J2523/36 , B01J2523/821
摘要： The present invention provides an additive composition having the general formula: AxByC(1-y)DzOm wherein: A is one or more metal elements selected from the group consisting of Group IIA of the periodic table; B, C is one or more metal elements selected from the lanthanide group, series of the periodic table or Yttrium; D is one or more metal elements selected from the group consisting of Manganese, Cobalt, Copper, Nickel or Ruthenium; x is a number defined by 0.5
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公开(公告)号：US20200247732A1
公开(公告)日：2020-08-06
申请号：US16646619
申请日：2017-09-12
发明人： Chaitanya SAMPARA , Vivek KHACHANE
IPC分类号： C07C5/22 , C07C2/86 , B01J27/055
摘要： A mixed metal oxide solid acid catalyst composition is disclosed which provides substantially improved conversion for hydrocarbon transformation reactions namely, alkylation and isomerization. The catalyst composition includes a sulfate ion, Platinum group metal and a mixed metal oxide support material bearing molecular formula: x1ZrO2.x2Al2O3.x3Yb2O3.x4CuO wherein the molar coefficients for individual metal oxides are as follows: x1=55 to 75×10−2; x2=12 to 25×10−2; x3=1 to 6×10−2 and x4=0.1 to 5×10−2; The concentration of the sulfate ion on the aforementioned catalyst support is between 5 to 17 wt % and that of Platinum group metal is 0.05 to 2.0 wt %.
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公开(公告)号：US11731121B2
公开(公告)日：2023-08-22
申请号：US17178619
申请日：2021-02-18
发明人： Chaitanya Sampara , Pushkar Varshney , Reshmi Manna , Saravanan Subramani , Madhusudan Sau , Debasis Bhattacharyya , Sankara Sri Venkata Ramakumar
IPC分类号： B01J35/00 , B01J21/06 , B01J23/42 , B01J23/44 , B01J31/04 , B01J35/02 , B01J37/00 , B01J37/02 , B01J37/03
CPC分类号： B01J35/0046 , B01J21/066 , B01J23/42 , B01J23/44 , B01J31/04 , B01J35/023 , B01J37/0009 , B01J37/0036 , B01J37/0045 , B01J37/0236 , B01J37/031
摘要： The present invention provides a process of preparing a high coordination sulfated mixed metal oxide catalyst. The process comprises mixing specific ratios of alumina and zirconia mixtures at specific particle size limits which do not exceed 37 μm, in the presence of a combination of α-amino acids, i.e., non-polar side chains and basic side chains having molecular weight less than 250, nitric acid (HNO3) and sulfuric acid (H2SO4) at a pH range of 1.5 to 3.8 at temperatures below 30° C. The catalysts have a high conversion towards hydrocarbon isomerization reaction while concurrently having crushing strength in range of 2.0 daN and 5.0 daN, allowing for efficient commercial application.
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公开(公告)号：US20210252495A1
公开(公告)日：2021-08-19
申请号：US17178619
申请日：2021-02-18
发明人： Chaitanya SAMPARA , Pushkar VARSHNEY , Reshmi MANNA , Saravanan SUBRAMANI , Madhusudan SAU , Debasis BHATTACHARYYA , Sankara Sri Venkata RAMAKUMAR
IPC分类号： B01J35/00 , B01J21/06 , B01J37/02 , B01J37/00 , B01J35/02 , B01J23/42 , B01J31/04 , B01J23/44 , C07C5/22
摘要： The present invention provides a process of preparing a high coordination sulfated mixed metal oxide catalyst. The process comprises mixing specific ratios of alumina and zirconia mixtures at specific particle size limits which do not exceed 37 μm, in presence of a combination of α-amino acids i.e., non-polar side chains and basic side chains having molecular weight less than 250, nitric acid (HNO3) and sulfuric acid (H2SO4) at a pH range of 1.5 to 3.8 at temperatures below 30° C. The catalysts have a high conversion towards hydrocarbon isomerization reaction while concurrently having crushing strength in range of 2.0 daN and 5.0 daN, allowing for efficient commercial application.
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