公开(公告)号：US20210283585A1

公开(公告)日：2021-09-16

申请号：US16331872

申请日：2017-09-06

Applicant: Reliance Industries Limited

Inventor： Sukumar Mandal ,  Sateesh Daggupati ,  Sachchit Kumar Majhi ,  Asit Kumar Das

IPC: B01J27/232 ,  B01J35/10 ,  B01J37/00 ,  B01J37/02 ,  B01J37/10

Abstract: The present disclosure relates to a hydrothermally stable catalyst composition. The hydrothermally stable supported catalyst composition comprises K2CO3 impregnated on an amorphous silica-alumina support. The weight ratio of silica to alumina in the support is in the range of 0.1 to 1.5. The amount of K2CO3 is in the range of 5 wt % to 60 wt % with respect to the total catalyst composition. The catalyst composition is characterized by a pore volume in the range of 0.1 cc/g to 0.9 cc/g, a surface area in the range of 40 m2/g to 250 m2/g and an attrition index in the range of 2% to 8%. The present disclosure also relates to a process for preparing the catalyst composition. The catalyst composition provides improved hydrothermal stability, attrition resistance, high pore volume and surface area for gasifying carbonaceous feed at low temperature, as compared to a conventional catalyst composition.

公开(公告)号：US11643609B2

公开(公告)日：2023-05-09

申请号：US16321506

申请日：2017-08-04

Applicant: RELIANCE INDUSTRIES LIMITED

Inventor： Sateesh Daggupati ,  Clifton Gregg Keeler ,  Sukumar Mandal ,  Asit Kumar Das ,  Sachchit Kumar Majhi ,  Ajay Gupta ,  Ajit Vish Sapre

IPC: C10J3/48 ,  C01B3/44 ,  C10J3/72 ,  C10K1/02 ,  C10K3/02 ,  C10K1/00 ,  C10K1/04

CPC classification number: C10J3/48 ,  C01B3/44 ,  C10J3/721 ,  C10K1/007 ,  C10K1/024 ,  C10K1/04 ,  C10K3/02 ,  C10K3/023 ,  C01B2203/042 ,  C01B2203/0465 ,  C10J2300/093 ,  C10J2300/0916 ,  C10J2300/0943

Abstract: The present disclosure relates to a process and a system for producing synthesis gas. The carbonaceous feedstock is gasified, in the presence of at least one of oxygen and steam, in a first reactor to obtain a gaseous mixture comprising H2, CO, CH4, CO2, H2O, tar and char. The gaseous mixture is treated in a second reactor, in the presence of a catalyst, to obtain synthesis gas. The system comprises a first reactor, a connecting conduit, a second reactor, at least one cyclone separator, at least one heat exchanger and at least one synthesis gas filter unit. The process and the system of the present disclosure are capable of producing synthesis gas with comparatively higher conversion of the unreacted char.

公开(公告)号：US11383227B2

公开(公告)日：2022-07-12

申请号：US16331872

申请日：2017-09-06

Applicant: Reliance Industries Limited

Inventor： Sukumar Mandal ,  Sateesh Daggupati ,  Sachchit Kumar Majhi ,  Asit Kumar Das

IPC: B01J27/232 ,  B01J35/10 ,  B01J37/00 ,  B01J37/02 ,  B01J37/10 ,  B01J21/12

Abstract: The present disclosure relates to a hydrothermally stable catalyst composition. The hydrothermally stable supported catalyst composition comprises K2CO3 impregnated on an amorphous silica-alumina support. The weight ratio of silica to alumina in the support is in the range of 0.1 to 1.5. The amount of K2CO3 is in the range of 5 wt % to 60 wt % with respect to the total catalyst composition. The catalyst composition is characterized by a pore volume in the range of 0.1 cc/g to 0.9 cc/g, a surface area in the range of 40 m2/g to 250 m2/g and an attrition index in the range of 2% to 8%. The present disclosure also relates to a process for preparing the catalyst composition. The catalyst composition provides improved hydrothermal stability, attrition resistance, high pore volume and surface area for gasifying carbonaceous feed at low temperature, as compared to a conventional catalyst composition.