Abstract: The present disclosure relates to a catalyst composition comprising: (a) nickel; (b) at least one promoter selected from Cu Zn, Mo, Co, Mg, Ce, Ti, Zr, Fe, Pd, Ag, Pt, or combinations thereof; and (c) a support material, wherein, the nickel loading is in the range of 6-19 wt % and the at least one promoter loading is in the range of 0.2-5 wt % with respect to the support material. The present disclosure further discloses a process for preparing a catalyst composition and a process each for the production of hydrogen gas and carbon nanotubes. Also disclosed herein, is use of a catalyst composition for obtaining hydrogen gas and carbon nanotubes.

Abstract: The present subject matter relates to co-producing H-CNG and CNTs. The process comprises adding catalyst to a first reactor (110) and activating the catalyst and performing a reaction to obtain H-CNG and CNTs. At a first predetermined time after reaction has progressed in the first reactor (110), catalyst is added to a second reactor (120), activated, and then the reaction proceeds simultaneously in the first reactor (110) and second reactor (120). The use of multiple reactors with staggered start times helps in the continuous co-production of H-CNG and CNTs. Catalyst preparation process is integrated with the co-production process for efficient heat recovery. The first and second reactors are fluidized bed reactors with cantilever trays having weirs for controlling the residence time of the catalyst in the reactor and thereby controlling the purity of CNTs produced.

Abstract: The present disclosure discloses a catalyst composition comprising: (a) at least one steamed biochar; and (b) at least one tri-metallic catalyst, comprising metals selected from the group consisting of nickel, copper, zinc, and combinations thereof, wherein nickel loading is in the range of 20-60 wt %, the copper loading is in the range of 0.5-5.0 wt %, and the zinc loading is in the range of 0.5-5.0 wt with respect to the at least one steamed biochar. The instant disclosure further relates to a process of preparation of the catalyst composition and a process for production of hydrogen gas and carbon nanotubes.

Abstract: A process for catalytic hydrotreatment of a pyrolysis oil derived from lignocelluloses is provided.

Abstract: A process for producing hydrocarbons from microbial lipids is provided by: contacting a feed comprising microbial lipids, wherein the microbial lipids comprise a triglyceride content in the range of from 40 wt % to 70 wt % and a free fatty acid content in the range of from 10 wt % to 30 wt %, with a hydrogenation catalyst and hydrogen at a temperature in the range of from 250 to 380° C. and a total pressure in the range of from 20 to 160 bar (absolute), to obtain an effluent comprising paraffinic hydrocarbons and water; optionally separating a liquid stream rich in paraffinic hydrocarbons from the effluent; contacting the paraffinic hydrocarbons in the liquid stream rich in paraffinic hydrocarbons or the effluent comprising paraffinic hydrocarbons by contacting hydrogen and the liquid stream with hydroisomerisation catalyst at a temperature in the range of from 280 to 450° C.

Abstract: A process for producing hydrocarbons from microbial lipids is provided by contacting a feed comprising microbial lipids with a hydrogenation catalyst and hydrogen at a temperature in the range of from 250 to 380° C. and a total pressure in the range of from 20 to 160 bar (absolute), to obtain an effluent comprising paraffinic hydrocarbons and water; optionally separating a liquid stream rich in paraffinic hydrocarbons from the effluent; contacting the paraffinic hydrocarbons in the liquid stream rich in paraffinic hydrocarbons or the effluent comprising paraffinic hydrocarbons by contacting hydrogen and the liquid stream with hydroisomerisation catalyst at a temperature in the range of from 280 to 450° C. and a total pressure in the range of from 20 to 160 bar (absolute); and separating at least one product fraction from the product stream obtained, wherein the hydrogenation catalyst and/or the hydroisomerisation catalyst comprises a sulfided hydrogenation catalyst.

Abstract: A process for catalytic hydrotreatment of a pyrolysis oil derived from lignocelluloses is provided.