EP2596110A2 - Procédé de production de sucres a partir de biomasse lignocellulosique prétraitée avec un mélange de sels inorganiques hydratés et de sels métalliques - Google Patents
Procédé de production de sucres a partir de biomasse lignocellulosique prétraitée avec un mélange de sels inorganiques hydratés et de sels métalliquesInfo
- Publication number
- EP2596110A2 EP2596110A2 EP11749870.9A EP11749870A EP2596110A2 EP 2596110 A2 EP2596110 A2 EP 2596110A2 EP 11749870 A EP11749870 A EP 11749870A EP 2596110 A2 EP2596110 A2 EP 2596110A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- anion
- formula
- carried out
- enzymatic hydrolysis
- lignocellulosic biomass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 150000003839 salts Chemical class 0.000 title claims abstract description 39
- 229910052751 metal Chemical class 0.000 title claims abstract description 35
- 239000002184 metal Chemical class 0.000 title claims abstract description 35
- 239000002029 lignocellulosic biomass Substances 0.000 title claims abstract description 27
- 239000000203 mixture Substances 0.000 title claims abstract description 20
- 235000000346 sugar Nutrition 0.000 title abstract description 9
- 150000008163 sugars Chemical class 0.000 title abstract description 8
- 238000004519 manufacturing process Methods 0.000 title description 4
- 230000007071 enzymatic hydrolysis Effects 0.000 claims abstract description 51
- 238000006047 enzymatic hydrolysis reaction Methods 0.000 claims abstract description 51
- 238000000034 method Methods 0.000 claims abstract description 51
- 239000007787 solid Substances 0.000 claims abstract description 33
- 238000010411 cooking Methods 0.000 claims abstract description 22
- 229910017053 inorganic salt Inorganic materials 0.000 claims abstract description 22
- 150000001298 alcohols Chemical class 0.000 claims abstract description 7
- 150000002772 monosaccharides Chemical class 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 21
- 239000002028 Biomass Substances 0.000 claims description 19
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 15
- 238000010304 firing Methods 0.000 claims description 14
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 12
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 12
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 12
- 239000012296 anti-solvent Substances 0.000 claims description 12
- 150000001450 anions Chemical group 0.000 claims description 11
- -1 halide anion Chemical class 0.000 claims description 11
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 8
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 8
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 8
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 claims description 8
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 claims description 8
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 8
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 8
- 239000003960 organic solvent Substances 0.000 claims description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 5
- 230000000737 periodic effect Effects 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 5
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 4
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 4
- 150000001414 amino alcohols Chemical class 0.000 claims description 4
- 150000001735 carboxylic acids Chemical class 0.000 claims description 4
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 4
- 150000002009 diols Chemical class 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 235000019253 formic acid Nutrition 0.000 claims description 4
- 150000002576 ketones Chemical class 0.000 claims description 4
- 229920005862 polyol Polymers 0.000 claims description 4
- 150000003077 polyols Chemical class 0.000 claims description 4
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical compound CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 claims description 4
- 239000011833 salt mixture Substances 0.000 claims description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 claims description 3
- 229940011051 isopropyl acetate Drugs 0.000 claims description 3
- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 235000021317 phosphate Nutrition 0.000 claims description 3
- ITMCEJHCFYSIIV-UHFFFAOYSA-M triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-M 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 2
- 150000004703 alkoxides Chemical class 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- 239000003849 aromatic solvent Substances 0.000 claims description 2
- 229910052794 bromium Inorganic materials 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 125000001188 haloalkyl group Chemical group 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical group 0.000 claims description 2
- 229910052738 indium Inorganic materials 0.000 claims description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 2
- 229910052740 iodine Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052746 lanthanum Inorganic materials 0.000 claims description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 claims description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 239000008096 xylene Substances 0.000 claims description 2
- 150000003738 xylenes Chemical class 0.000 claims description 2
- POILWHVDKZOXJZ-ARJAWSKDSA-M (z)-4-oxopent-2-en-2-olate Chemical compound C\C([O-])=C\C(C)=O POILWHVDKZOXJZ-ARJAWSKDSA-M 0.000 claims 1
- 229910002651 NO3 Inorganic materials 0.000 claims 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- 150000008051 alkyl sulfates Chemical class 0.000 claims 1
- 229940045714 alkyl sulfonate alkylating agent Drugs 0.000 claims 1
- 150000008052 alkyl sulfonates Chemical class 0.000 claims 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-M phenolate Chemical compound [O-]C1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-M 0.000 claims 1
- 229940031826 phenolate Drugs 0.000 claims 1
- 150000004676 glycans Chemical class 0.000 abstract description 4
- 229920001282 polysaccharide Polymers 0.000 abstract description 4
- 239000005017 polysaccharide Substances 0.000 abstract description 4
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 35
- 239000010902 straw Substances 0.000 description 32
- 241000209140 Triticum Species 0.000 description 26
- 235000021307 Triticum Nutrition 0.000 description 26
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 21
- 239000008103 glucose Substances 0.000 description 21
- 229920002678 cellulose Polymers 0.000 description 19
- 239000001913 cellulose Substances 0.000 description 19
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 13
- 239000000243 solution Substances 0.000 description 12
- 239000000047 product Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 9
- 239000012153 distilled water Substances 0.000 description 8
- 238000004880 explosion Methods 0.000 description 8
- 239000011780 sodium chloride Substances 0.000 description 8
- 238000000926 separation method Methods 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- 108090000790 Enzymes Proteins 0.000 description 6
- 102000004190 Enzymes Human genes 0.000 description 6
- 229920002488 Hemicellulose Polymers 0.000 description 6
- 239000002551 biofuel Substances 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- 239000002608 ionic liquid Substances 0.000 description 5
- 229920005610 lignin Polymers 0.000 description 5
- 239000002609 medium Substances 0.000 description 5
- 238000011282 treatment Methods 0.000 description 5
- 238000005119 centrifugation Methods 0.000 description 4
- 239000012978 lignocellulosic material Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002255 enzymatic effect Effects 0.000 description 3
- 238000000855 fermentation Methods 0.000 description 3
- 230000004151 fermentation Effects 0.000 description 3
- 150000002303 glucose derivatives Chemical class 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000002203 pretreatment Methods 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 108010089356 Novozym 188 Proteins 0.000 description 2
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 2
- 235000014680 Saccharomyces cerevisiae Nutrition 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000008351 acetate buffer Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000007824 enzymatic assay Methods 0.000 description 2
- 238000013213 extrapolation Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- ZXMGHDIOOHOAAE-UHFFFAOYSA-N 1,1,1-trifluoro-n-(trifluoromethylsulfonyl)methanesulfonamide Chemical compound FC(F)(F)S(=O)(=O)NS(=O)(=O)C(F)(F)F ZXMGHDIOOHOAAE-UHFFFAOYSA-N 0.000 description 1
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- 241000228212 Aspergillus Species 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 108010084185 Cellulases Proteins 0.000 description 1
- 102000005575 Cellulases Human genes 0.000 description 1
- 229910020366 ClO 4 Inorganic materials 0.000 description 1
- 241000193403 Clostridium Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- AFVFQIVMOAPDHO-UHFFFAOYSA-M Methanesulfonate Chemical compound CS([O-])(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-M 0.000 description 1
- 240000003433 Miscanthus floridulus Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 241000222480 Schizophyllum Species 0.000 description 1
- 241000223259 Trichoderma Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 125000005595 acetylacetonate group Chemical group 0.000 description 1
- 238000005903 acid hydrolysis reaction Methods 0.000 description 1
- 239000002154 agricultural waste Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229920001222 biopolymer Polymers 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000909 electrodialysis Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 108010002430 hemicellulase Proteins 0.000 description 1
- 150000002402 hexoses Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 150000002972 pentoses Chemical class 0.000 description 1
- 150000004707 phenolate Chemical class 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P19/00—Preparation of compounds containing saccharide radicals
- C12P19/02—Monosaccharides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/06—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of zinc, cadmium or mercury
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H1/00—Processes for the preparation of sugar derivatives
- C07H1/06—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H3/00—Compounds containing only hydrogen atoms and saccharide radicals having only carbon, hydrogen, and oxygen atoms
- C07H3/02—Monosaccharides
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P19/00—Preparation of compounds containing saccharide radicals
- C12P19/14—Preparation of compounds containing saccharide radicals produced by the action of a carbohydrase (EC 3.2.x), e.g. by alpha-amylase, e.g. by cellulase, hemicellulase
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
- C12P7/04—Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
- C12P7/06—Ethanol, i.e. non-beverage
- C12P7/08—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate
- C12P7/10—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate substrate containing cellulosic material
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
- C13K1/00—Glucose; Glucose-containing syrups
- C13K1/02—Glucose; Glucose-containing syrups obtained by saccharification of cellulosic materials
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/18—Pulping cellulose-containing materials with halogens or halogen-generating compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/20—Pulping cellulose-containing materials with organic solvents or in solvent environment
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P2201/00—Pretreatment of cellulosic or lignocellulosic material for subsequent enzymatic treatment or hydrolysis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Definitions
- the present invention is part of a process for producing so-called "second generation" alcohol from lignocellulosic biomass.
- Lignocellulosic biomass is composed of three main polymers: cellulose (35 to 50%), hemicellulose (23 to 32%) which is a polysaccharide essentially consisting of pentoses and hexoses and lignin (15 to 25%) which is a polymer of complex structure and high molecular weight, from the copolymerization of phenylpropenoic alcohols. These different molecules are responsible for the intrinsic properties of the plant wall and are organized in a complex entanglement.
- Biofuel production is an application requiring pretreatment of biomass. Indeed, the second generation of biofuel uses as load vegetable or agricultural waste, such as wood, wheat straw, or plantations with high growth potential such as miscanthus. This raw material is perceived as an alternative, sustainable solution with little or no impact on the environment and its low cost and high availability make it a solid candidate for biofuel production.
- the principle of the process of converting lignocellulosic biomass into biofuel uses a step of enzymatic hydrolysis of the cellulose contained in the plant material to produce glucose. This glucose is then fermented into ethanol, the biofuel.
- the cellulose contained in the lignocellulosic biomass is particularly refractory to enzymatic hydrolysis, especially since the cellulose is not directly accessible to the enzymes.
- a pretreatment step upstream of the enzymatic hydrolysis is necessary.
- Ionic liquids are salts consisting solely of liquid ions at temperatures of less than or equal to 100 ° C and provide highly polar media. They are thus used as solvents or as reaction media for treating cellulose or lignocellulosic materials (WO 05/17252; WO 05/23873). But like other pretreatments, ionic liquids have significant cost issues related to the price of ionic liquids and their often difficult recyclability.
- the present invention relates to a process for converting lignocellulosic biomass to sugars comprising at least three steps.
- the first step is a step of cooking the lignocellulosic biomass in a medium comprising at least one inorganic salt hydrated mixture with at least one other metal salt.
- the second step is a step of separating at least one solid fraction having undergone the firing step and the third step is a step of enzymatic hydrolysis of said solid fraction to convert the polysaccharides to monosaccharides.
- the sugars thus obtained are then fermentable in alcohols.
- Figure 1 shows the kinetics of the enzymatic hydrolysis of wheat straw according to the method of the present invention, implementing a step of baking the biomass in the presence of LiCI.H 2 0 (98%) / ZnCl 2. 2.5 H 2 0 (2%) at 140 ° C.
- FIG. 2 represents the kinetics of the enzymatic hydrolysis of wheat straw according to the method of the present invention, implementing a step of cooking the biomass in the presence of LiCl 2 H 2 O (10%) / ZnCl 2 . 2.5 H 2 O (90%) at 80 ° C.
- FIG. 3 represents the kinetics of the enzymatic hydrolysis of the wheat straw according to the process of the present invention, implementing a step of cooking the biomass in the presence of NaCl 6 H 2 O (10%) / ZnCl 2 . 2.5 H 2 O (90%) at 80 ° C.
- FIG. 4 represents the kinetics of the enzymatic hydrolysis of the wheat straw according to the process of the present invention, implementing a step of cooking the biomass in the presence of NaCl 6 H 2 O (10%) / ZnCl 2 . 2.5 H 2 O (90%) recycled at 80 ° C.
- FIG. 5 represents the kinetics of the enzymatic hydrolysis of wheat straw according to the method of the present invention, implementing a step of cooking the biomass in the presence of LiCl 2 H 2 O (10%) / FeCl 3 . 6 H 2 O (90%) at 60 ° C.
- FIG. 6 represents the kinetics of the enzymatic hydrolysis of the wheat straw according to the process of the present invention, implementing a step of cooking the biomass in the presence of LiCl 2 H 2 O (20%) / FeCl 3 . 6 H 2 O (80%) at 60 ° C.
- Figure 7 shows the kinetics of enzymatic hydrolysis of a native wheat straw, having not undergone any pretreatment.
- Figure 8 shows the kinetics of the enzymatic hydrolysis of wheat straw when pretreated by steam explosion prior to enzymatic hydrolysis.
- the process for converting lignocellulosic biomass into monosaccharides comprises at least:
- X is an anion and M is a metal selected from groups 1 and 2 of the Periodic Table, n is an integer of 1 or 2 and n is between 0.5 and 6
- Y is an anion, identical to or different from X
- m is an integer from 1 to 6 and m' is from 0 to 6.
- This process transforms lignocellulosic biomass into fermentable sugars with excellent yields. It also has the advantage of using inexpensive reagents, widely available and recyclable, thus obtaining a low pretreatment cost, especially compared to a process using ionic liquids. This technology is also simple to implement and makes it easy to envisage an extrapolation at the industrial level.
- the transformation of the lignocellulosic biomass into fermentable sugars is carried out with an excellent yield.
- the firing step carried out according to the process of the present invention makes it possible to reduce the duration of enzymatic hydrolysis with respect to the processes described in the prior art.
- the method according to the present invention makes it possible to achieve high glucose yields with short cooking times, allowing a significant gain in terms of productivity of the products. equipment since it becomes possible to use smaller amounts of enzymes and / or to reduce the size of the enzymatic hydrolysis tanks.
- the process according to the invention makes it possible to carry out the step of cooking the lignocellulosic biomass at moderate temperatures, in the absence of pressure, which constitutes a significant gain in terms of energy costs.
- the medium in which the firing step is carried out consists of one or more hydrated inorganic salts of formula (1) mixed with at least one other metal salt, hydrated or not, of formula (2).
- the lignocellulosic biomass, or lignocellulosic materials used in the process according to the invention is obtained from wood (hardwood and softwood), raw or treated, by agricultural products such as straw, plant fibers, cultures. forestry, residues of alcoholic, sugar and cereal plants, residues of the paper industry, or products of transformation of cellulosic or lignocellulosic materials.
- the lignocellulosic materials can also be biopolymers and are preferably rich in cellulose.
- the lignocellulosic biomass used is wood, wheat straw, wood pulp, rice straw or corn stalks.
- the different types of lignocellulosic biomass can be used alone or in mixture.
- the lignocellulosic biomass is present in an amount of between 0.5% and 40% by weight of the total mass of the lignocellulosic biomass / hydrated inorganic salt / metal salt mixture, preferably in an amount of between 3% and 25% weight.
- the anion X is a halide anion chosen from Cl, F, Br and I, a perchlorate anion (ClO 4 ), a thiocyanate anion (SCN), a nitrate anion (NO 3 ) or an acetate anion (CH 3 ). 3 COO).
- the metal M is preferably selected from lithium, magnesium, calcium, potassium or sodium.
- n ' is between 1 and 6.
- the hydrated inorganic salt having the formula (1) can be prepared in situ by the combination of a salt composed of a cation of groups 1 and 2 of the periodic table and a carbonate anion, hydrogen carbonate or hydroxide with an acid.
- the acid can be used pure or in aqueous solution.
- the anion Y is chosen from anions halides, nitrates, carboxylates, halocarboxylates, acetylacetonates, alkoxides, phenolates, optionally substituted, sulphates, alkyl sulphates, phosphates, alkyl phosphates, fluorosulphonates, alkylsulphonates, for example methylsulphonate, perfluoroalkylsulphonates, for example trifluoromethylsulphonate, bis (perfluoroalkylsulphonyl) amides, for example bis (trifluoromethylsulphonyl) amide of formula N (CF 3 SO 2 ) 2 - , arenesulphonates, optionally substituted with halogen or haloalkyl groups; .
- the anion Y is selected from fluoride anions, chloride, bromide, acetate, and triflate.
- the metal M ' is selected from iron, cobalt, nickel, copper, zinc, aluminum, indium or lanthanum.
- the metal salt of general formula (2) is chosen from FeBr 3 , FeCl 3 , FeCl 3 .6H 2 O, FeF 3 , Fe (NO 3 ) 3 , CoCl 2 , CoCl 2 .6H 2 O, Ni (CH 3 COO) 2 .4H 2 O, NiBr 2 , NiCl 2 NiCl 2 .6H 2 O, Zn (CH 3 COO) 2 .2H 2 O, ZnBr 2 , ZnCl 2 , ZnCl 2 .2,5H 2 O, AIBr 3 , AICI 3 , AICI 3 .6H 2 OLaCl 3 , LaCI 3 .6H 2 O.
- the molar fraction of the hydrated inorganic salt of formula (1) in the mixture of at least one hydrated inorganic salt of formula (1) and of at least one metal salt of formula (2) may be between 0.05 and 1 .
- the step of cooking the biomass may be carried out in a medium consisting of a mixture of different hydrated inorganic salts corresponding to formula (1) and / or different metal salts corresponding to formula (2).
- a medium consisting of a mixture of different hydrated inorganic salts corresponding to formula (1) and / or different metal salts corresponding to formula (2).
- several successive firing steps can be carried out in a medium consisting of at least one hydrated inorganic salt of formula (1) mixed with at least one metal salt of formula (2).
- the firing temperature is preferably between -20 ° C and 250 ° C, preferably between 20 and 160 ° C. Very preferably, the cooking temperature does not exceed 100 ° C.
- the duration of the cooking is between 0.5 minutes and 168 hours, preferably between 5 minutes and 4 hours and even more preferably between 20 minutes and 2 hours.
- the step of cooking the lignocellulosic biomass according to the present invention can be carried out in the presence of an organic solvent.
- the organic solvent may be chosen from alcohols such as methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol or tert-butanol, diols and polyols such as ethanediol.
- the step of cooking the lignocellulosic biomass according to the present invention can be carried out in the absence of an organic solvent.
- the second step b) of the process according to the invention consists in separating a solid fraction, which has undergone the firing step a) described above. This separation is generally carried out by adding at least one anti-solvent which causes the precipitation of the solid fraction.
- the separation of this precipitated solid fraction and a liquid fraction containing the hydrated inorganic salt, the metal salt and the anti-solvent can be carried out by the usual solid-liquid separation techniques.
- the separation of the solid fraction having undergone the cooking step can be carried out by filtration or by centrifugation.
- the solid fraction may optionally be subjected to additional treatments before the enzymatic hydrolysis step.
- additional treatments may in particular be intended to eliminate traces of hydrated inorganic salts and / or metal salts in the solid fraction having undergone the cooking step.
- additional treatments may be, for example, washes, carried out with the anti-solvent, with water or with any other flow of the process.
- the liquid obtained after washing contains the fluid used for the additional treatment and traces of hydrated inorganic salts and / or metal salts.
- This liquid can advantageously be recycled for use during the separation step, thus allowing a better recovery rate of salts and better purity of the solid fraction while limiting the consumption of anti-solvent or other washing fluid.
- the solid fraction may optionally be dried or pressed to increase the percentage of dry matter contained in the solid.
- the anti-solvent used is a solvent or a mixture of solvents chosen from water, alcohols such as methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol or tert-butanol, diols and polyols such as ethanediol, propanediol or glycerol, amino alcohols such as ethanolamine, diethanolamine or triethanolamine, ketones such as acetone or methyl ethyl ketone, carboxylic acids such as formic acid or acetic acid, esters such as ethyl acetate or isopropyl acetate, dimethylformamide, dimethylacetamide, dimethylsulfoxide, acetonitrile.
- alcohols such as methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol or tert-butanol
- the anti-solvent is selected from water, methanol or ethanol.
- the anti-solvent is water.
- the hydrated inorganic salt and the metal salt contained in the liquid fraction can be separated from the anti-solvent and recycled, for example to be used during the baking step. This separation can be carried out by any method known to those skilled in the art, such as, for example, evaporation, precipitation, extraction, passage over ion exchange resin, electrodialysis, chromatographic methods, solidification. hydrated inorganic salt and metal salt by lowering the temperature or adding a third body, reverse osmosis.
- the liquid fraction containing the hydrated inorganic salt, mixed with the metal salt, and the anti-solvent may also contain products derived from biomass.
- the liquid fraction may contain hemicellulose (or products derived from hemicellulose) and lignin.
- Biomass products contained in the liquid fraction can be separated before or after separation of the hydrated inorganic salt in admixture with metal salt - anti-solvent.
- the products derived from biomass may for example be extracted by addition of an immiscible solvent with the hydrated inorganic salt mixed with the metal salt or with the mixture of the inorganic salt hydrate mixed with the metal salt - anti-solvent.
- Products derived from biomass can also be precipitated by changing conditions (temperature, pH, etc.) or by adding a third body.
- the hydrated inorganic salt mixed with the metal salt thus recovered can be purified by heating at high temperatures, above 400 ° C, to remove by combustion the organic products derived from biomass potentially still present.
- the third step c) of the process according to the invention is the enzymatic hydrolysis step of the solid fraction obtained in step b).
- the solid fraction also referred to below as pretreated substrate, is subjected to enzymatic hydrolysis to convert the polysaccharides to monosaccharides under the usual conditions normally applied in these conversion processes.
- the pretreated substrate is placed in an aqueous medium to reach dry matter concentrations of between 0.5% and 40%, preferably between 1% and 20% by weight.
- the enzymatic hydrolysis is carried out under mild conditions, at a temperature of the order of 40 to 60 ° C, at a pH of between 4.5 and 5.5. Very preferably, the pH is between 4.8 and 5.2. If a pH adjustment is necessary, it is carried out prior to the enzymatic hydrolysis step, when the pretreated substrate is placed in an aqueous medium, in particular by adding a buffer solution.
- Enzymatic hydrolysis is carried out by means of enzymes produced by a microorganism.
- Microorganisms such as fungi belonging to the genera Trichoderma, Aspergillus, Penicillum or Schizophyllum, or anaerobic bacteria belonging for example to the genus Clostridium, produce these enzymes, notably containing cellulases and hemicellulases, suitable for the extensive hydrolysis of cellulose and hemicelluloses.
- the duration of the hydrolysis step c) varies between 1 h and 150 h, preferably between 2 h and 72 h, preferably between 4 h and 24 h.
- the glucose formed is soluble in water while the optionally unconverted cellulose, lignin or other products remain insoluble.
- the aqueous glucose solution is recovered by filtration.
- the monosaccharide thus obtained is easily converted into alcohol by fermentation with yeasts such as, for example, Saccharomyces cerevisiae.
- yeasts such as, for example, Saccharomyces cerevisiae.
- the fermentation must obtained is then distilled to separate the vinasses and the alcohol produced.
- the enzymatic hydrolysis step is carried out simultaneously with the fermentation.
- the substrate used in these examples is a wheat straw.
- the compositional analysis carried out according to the NREL protocol TP-510-42618 indicates that the composition of the raw substrate is the following (in% of dry matter): 37% cellulose, 28% hemicellulose and 20% lignin. In the examples below, the compositions are given in mole fractions.
- Examples 1 to 5 are in accordance with the invention.
- Example 6 is given by way of comparison, the enzymatic hydrolysis being carried out on a native wheat straw.
- Example 7 is a comparative example, the pretreatment carried out consisting of a steam explosion, currently known as one of the best technologies for fermentable sugars.
- Example 1 Pretreatment of wheat straw by LiCI.H 2 0 (98%) / ZnCl 2 .2.5 H 2 0 (2%) 1 0 ° C and enzymatic hydrolysis
- step a the heating is stopped and 80 ml of distilled water are rapidly added to the mixture: the pretreated straw precipitates.
- the suspension containing the salt mixture, water and biomass is placed in a centrifuge tube and stirred at 9500 rpm for 10 minutes.
- the supernatant containing the salt mixture is then separated from the solid.
- the operation is repeated three times by adding 80 ml of distilled water to the solid part still present in the centrifugation tube. 7.4 g of solid, with a dry matter content of 9%, are recovered.
- the solid recovered after precipitation and washing is subjected to enzymatic hydrolysis.
- Half of the recovered solid is placed in a 100 ml Schott flask. 5 ml of acetate buffer, 10 ml of a 1 wt.% Solution of NaN 3 in water are added and the mixture is then made up to 100 g with distilled water. This solution is then left overnight at 50 ° C for "activation" with stirring of 550 rpm in a STEM dry water bath.
- the known quantities of enzyme are then added to the solution:
- the solution is then stirred at 400 rpm at 50 ° C., still in dry-water baths, and samples are taken after 1 h, 4 h, and 7 h. These samples are placed in centrifuge tubes and rapidly placed for 10 minutes in an oil at a temperature of 103 ° C. to neutralize the enzymatic activity. Centrifuge tubes are stored in a refrigerator at 4 ° C while waiting for glucose measurement. They are then diluted by 5 with distilled water before being assayed using the Analox GL6 analyzer apparatus, called glucostat, which measures by enzymatic assay the glucose concentration in aqueous solutions.
- glucostat Analox GL6 analyzer apparatus
- glucose yield defined as the ratio of the glucose concentration in the solution the theoretical maximum concentration according to the cellulose content of the substrate. This glucose yield therefore represents the percentage of the cellulose actually converted into glucose.
- Example 2 Pretreatment of wheat straw by LiCl 2 H 2 O (10%) / ZnCl 2 .2.5H 2 O (90%) at 80 ° C. and enzymatic hydrolysis
- the protocol is identical to that of Example 1 except that 38 g of LiCl 2 H 2 O (10%) / ZnCl 2 .2.5H 2 O (90%) are used in place of 38 g of LiCI.H 2 0 (98%) / ZnCl 2 .2.5 H 2 0 (2%) and that the pretreatment is carried out at 80 ° C.
- the result of the enzymatic hydrolysis is shown in FIG.
- the protocol is identical to that of Example 1 except that 38 g of NaCl 6 H 2 O (10%) / ZnCl 2 .2.5H 2 O (90%) are used in place of 38 g of LiCI.H 2 0 (98%) / ZnCl 2 .2.5 H 2 0 (2%) and that the pretreatment is carried out at 80 ° C.
- the result of the enzymatic hydrolysis is shown in FIG.
- Example 4 Pre-treatment of wheat straw by NaCI.6H 2 O (10%) / ZnCl 2 .2.5 H 2 O (90%) recycled at 80 ° C and enzymatic hydrolysis
- the water stoichiometry with respect to the salts is adjusted by adding 2 g of water.
- step a) of the process according to the invention After this cooking (step a) of the process according to the invention), the heating is stopped and 80 ml of distilled water are rapidly added to the mixture: the pretreated straw precipitates.
- the suspension containing the inorganic salt, water and biomass is placed in a centrifuge tube and centrifuged at 9500 rpm for 10 minutes.
- the supernatant, containing the Inorganic salt is then separated from the solid.
- the operation is repeated twice by adding 80 ml of distilled water to the solid part still present in the centrifugation tube. 11.2 g of solid, with a solids content of 13%, are recovered.
- the solid recovered after precipitation and washing was subjected to enzymatic hydrolysis.
- Half of the recovered solid is placed in a 100 ml Schott flask.
- the solution is then stirred at 400 rpm at 50 ° C., still in the dry-water baths, and samples are taken after 1 h, 4 h and 7 h. These samples are placed in centrifuge tubes and rapidly placed for 10 minutes in an oil at a temperature of 03 ° C. to neutralize the enzymatic activity. Centrifuge tubes are stored in a refrigerator at 4 ° C while waiting for glucose measurement. They are then diluted by 5 with distilled water before being assayed using the Analox GL6 analyzer apparatus, called glucostat, which measures by enzymatic assay the glucose concentration in aqueous solutions.
- glucostat Analox GL6 analyzer apparatus
- glucose yield defined as the ratio of the glucose concentration in the solution to the theoretical maximum concentration according to the cellulose content of the native wheat straw. This glucose yield therefore represents the percentage of the cellulose contained in the native substrate actually converted into glucose after the pretreatment and enzymatic hydrolysis steps.
- Example 6 Pretreatment of Wheat Straw by LiCl 2 H 2 O (20%) / FeCl 3 .6H 2 O (80%) at 60 ° C. and Enzymatic Hydrolysis
- the protocol is identical to that of Example 1 except that 38 g of LiCl 6 H 2 O (20%) / FeCl 3 H 2 O (80%) are used in place of 38 g of LiCl. H 2 O (98%) / ZnCl 2 .2.5H 2 O (2%) and pretreatment is performed at 60 ° C.
- the result of the enzymatic hydrolysis is shown in FIG.
- Example 7 Enzymatic hydrolysis of native wheat straw (without pretreatment)
- Example 8 Enzymatic hydrolysis of wheat straw resulting from pretreatment by steam explosion.
- the protocol used for the enzymatic hydrolysis is identical to that described in Example 1.
- the wheat straw used was pretreated by steam explosion, pretreatment whose three steps are described below.
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1003092A FR2963008B1 (fr) | 2010-07-23 | 2010-07-23 | Procede de production de sucres a partir de biomasse lignocellulosique pretraitee avec un melange de sels inorganiques hydrates et de sels metalliques |
| PCT/FR2011/000426 WO2012010750A2 (fr) | 2010-07-23 | 2011-07-19 | Procédé de production de sucres a partir de biomasse lignocellulosique prétraitée avec un mélange de sels inorganiques hydratés et de sels métalliques |
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| Publication Number | Publication Date |
|---|---|
| EP2596110A2 true EP2596110A2 (fr) | 2013-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11749870.9A Withdrawn EP2596110A2 (fr) | 2010-07-23 | 2011-07-19 | Procédé de production de sucres a partir de biomasse lignocellulosique prétraitée avec un mélange de sels inorganiques hydratés et de sels métalliques |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20130210089A1 (fr) |
| EP (1) | EP2596110A2 (fr) |
| BR (1) | BR112013001757A2 (fr) |
| CA (1) | CA2801831A1 (fr) |
| FR (1) | FR2963008B1 (fr) |
| WO (1) | WO2012010750A2 (fr) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2985736B1 (fr) * | 2012-01-18 | 2020-01-10 | IFP Energies Nouvelles | Procede de pretraitement de la biomasse lignocellulosique avec un sel inorganique hydrate permettant d'obtenir une fraction cellulosique et une fraction hemicellulosique |
| FR2985737B1 (fr) * | 2012-01-18 | 2020-01-10 | IFP Energies Nouvelles | Procede de pretraitement de la biomasse lignocellulosique avec un sel inorganique hydrate comprenant une etape d'hydrolyse acide preliminaire |
| MX2014012867A (es) * | 2012-04-26 | 2015-07-14 | Archer Daniels Midland Co | Separacion liquido / liquido de biomasa lignocelulosica para producir jarabes de azucar y fracciones de lignina. |
| FR2999605A1 (fr) * | 2012-12-14 | 2014-06-20 | IFP Energies Nouvelles | Procede de production de solutions de sucres a partir de biomasse lignocellulosique avec traitement complementaire du residu solide par un sel inorganique hydrate |
| FR2999604B1 (fr) * | 2012-12-14 | 2017-01-13 | Ifp Energies Now | Procede de production de solutions de sucres et d'alcools a partir de biomasse lignocellulosique avec traitement complementaire du residu solide par un sel inorganique hydrate |
| US20160046731A1 (en) * | 2014-08-14 | 2016-02-18 | Api Intellectual Property Holdings, Llc | Production of sugars from biomass using solid catalysts |
| US12116642B2 (en) | 2020-03-02 | 2024-10-15 | ExxonMobil Technology and Engineering Company | Lignocellulosic biomass treatment methods and systems for production of biofuels and biochemicals |
| US12263463B2 (en) | 2020-06-01 | 2025-04-01 | ExxonMobil Technology and Engineering Company | Biomass pyrolysis systems and methods for metal removal from biofuel |
| CN113289680B (zh) * | 2021-06-02 | 2022-09-13 | 河北科技大学 | 一种双相催化剂及其制备方法和在木质纤维素生物质转化中的应用 |
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| DE3373493D1 (en) * | 1982-04-05 | 1987-10-15 | Ici Plc | Solubilisation and hydrolysis of carbohydrates |
| US4452640A (en) * | 1982-05-11 | 1984-06-05 | Purdue Research Foundation | Quantitative hydrolysis of cellulose to glucose using zinc chloride |
| AU2003904323A0 (en) | 2003-08-13 | 2003-08-28 | Viridian Chemical Pty Ltd | Solvents based on salts of aryl acids |
| FI116142B (fi) | 2003-09-11 | 2005-09-30 | Kemira Oyj | Esteröintimenetelmä |
| EP2100972A1 (fr) * | 2008-03-13 | 2009-09-16 | BIOeCON International Holding N.V. | Procédé pour convertir les polysaccharides dans un hydrate de sel fondu |
| US8236535B2 (en) * | 2008-04-30 | 2012-08-07 | Xyleco, Inc. | Processing biomass |
| EP2408782A1 (fr) * | 2009-03-17 | 2012-01-25 | BIOeCON International Holding N.V. | Procede pour la conversion de polysaccharides dans un hydrate de sel fondu inorganique |
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2010
- 2010-07-23 FR FR1003092A patent/FR2963008B1/fr not_active Expired - Fee Related
-
2011
- 2011-07-19 WO PCT/FR2011/000426 patent/WO2012010750A2/fr not_active Ceased
- 2011-07-19 BR BR112013001757A patent/BR112013001757A2/pt not_active IP Right Cessation
- 2011-07-19 CA CA2801831A patent/CA2801831A1/fr not_active Abandoned
- 2011-07-19 EP EP11749870.9A patent/EP2596110A2/fr not_active Withdrawn
- 2011-07-19 US US13/811,676 patent/US20130210089A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012010750A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2801831A1 (fr) | 2012-01-26 |
| WO2012010750A2 (fr) | 2012-01-26 |
| FR2963008A1 (fr) | 2012-01-27 |
| US20130210089A1 (en) | 2013-08-15 |
| WO2012010750A3 (fr) | 2012-04-12 |
| FR2963008B1 (fr) | 2013-01-04 |
| BR112013001757A2 (pt) | 2016-08-30 |
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