Phycocyanin extraction and production of crude bio-oil from biomass

Patent metadata

Field	Value
Publication number	US-2016130504-A1
Application number	US-201514982624-A
Country	US
Kind code	A1
Filing date	Dec 29, 2015
Priority date	Sep 6, 2013
Publication date	May 12, 2016
Grant date	—

Abstract

The present disclosure relates to a process for the conversion of biomass to crude bio-oil. Phycocyanin is extracted from the biomass to form phycocyanin extracted biomass (PEB) and subjecting the PEB to HTL conversion to obtain crude bio-oil. PEB results in improved yield of crude bio-oil as compared to the crude bio-oil yield from biomass without first extracting the phycocyanin from the biomass.

First claim

1 . A process for the conversion of algal biomass to crude bio-oil; said process comprising the following steps:
a. extracting phycocyanin from said algal biomass to obtain a phycocyanin extracted biomass (PEB) that is at least 90 to 95% free from phycocyanin as measured by spectrophotometry; b. preparing an aqueous slurry of said PEB in water, wherein the concentration of said PEB in the aqueous slurry ranges from 5% to 35%; c. adding a catalyst composition as herein described, to the aqueous slurry, in an amount in the range of 1 to 20 wt. % with respect to said PEB to form a reaction mixture; d. hydrothermal liquefying (HTL) said reaction mixture in the presence of hydrogen gas at a temperature ranging from 200 to 400° C. and at a pressure ranging from 70 to 250 bars for a time period ranging from 10 to 180 minutes to obtain a resultant crude bio-oil; and e. cooling said resultant and separating crude bio-oil from said resultant.

2 . The process as claimed in claim 1 , wherein the carbon content of said crude bio-oil is in the range of 60% to 80%.

3 . The process as claimed in claim 1 , further comprises an additional step of recovering and recycling said catalyst composition, said process comprising the following steps:
recovering said catalyst composition from said residue by sieving, calcining or reducing said residue followed by recycling of said catalyst composition in step (c).

4 . The process as claimed in claim 1 , wherein said algal mass is selected from the group consisting of Rhodophyta, Chlorophyta, Phaeophyta, Chrysophyta, Cryptophyta, Dinophyta, Tribophyta, Glaucophyta, Spirulina, Microcystis, Anabaena, Nodularia, Oscillatoria, Spirogyra and Phormidium.

5 . The process as claimed in claim 1 , wherein said step of separation is, at least one step, selected from the group consisting of filtration, centrifugation, decantation, adsorption, chromatography, liquid-liquid extraction and solid-phase extraction.

Assignees

• Reliance Ind Ltd

Inventors

• Soni Badrish Ranjitlal
• Chidambaram Mandan
• Mantri Kshudiram
• Vinodhkumar Vijayakumar
• Raha Sasanka
• Prasad Venkatesh
• Bhujade Ramesh
• Dasgupta Santanu
• Sharma Nagesh
• Jasra Raksh Vir

Classifications

• B01J37/0009

  Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst · CPC title

• B01J21/04 Primary

  Alumina · CPC title

• C10L1/02

  essentially based on components consisting of carbon, hydrogen, and oxygen only · CPC title

• C10G1/06

  by destructive hydrogenation · CPC title

• B01J31/38

  of titanium, zirconium or hafnium · CPC title