Resumen de: US2025207049A1
Provided is a method for pretreating waste fat, oil and grease (FOG) and co-producing a first-generation biodiesel, including: S1, feeding waste FOG, a liquid acid catalyst, and methanol into a pre-esterification reactor, and conducting pre-esterification to obtain a pre-esterification mixed liquid; S2, removing waste residues from the pre-esterification mixed liquid through a filter to obtain a filtrate, and separating the filtrate by a liquid-liquid separator to obtain an organic phase and an aqueous phase; S3, introducing the organic phase into a methanol recovery tower I and conducting separation to obtain a pre-esterification product and crude methanol; introducing the aqueous phase into a methanol recovery tower II and conducting another separation to obtain a liquid acid catalyst and crude methanol; S4, separating the pre-esterification product through a biodiesel refining tower to obtain a first-generation biodiesel product, and a pretreated waste FOG at a tower bottom.
Resumen de: WO2025134934A1
Provided is a method in which palm oil mill effluent (POME) is used to produce a biofuel which contains a fatty acid methyl ester (FAME) and from which impurities have been removed. Specifically provided is a biofuel production method including a methyl esterification step in which palm oil mill effluent (POME) is reacted with an acid catalyst and methanol, and then reacted with a base catalyst and methanol to produce a fatty acid methyl ester (FAME).
Resumen de: US2025207170A1
The disclosure relates to a method for producing at least one product from CO and optionally H2, or from CO2 and H2. The method comprises introducing a gaseous substrate comprising at least CO and optionally H2, or at least CO2 and H2 into a first-stage bioreactor containing a culture of at least one microorganism in a liquid nutrient medium and fermenting the gaseous substrate to produce one or more first-stage product; and incorporating the one or more first products into one or more articles or converting the one or more first products into one or more second products. The converting may be a second stage fermentation process. The fermentations may be any combination of aerobic and anaerobic, batch and continuous.
Resumen de: US2025207110A1
The present invention relates to proteins involved in fatty acid synthesis, such as fatty acid synthases (FAS) variants, comprising one or more polypeptide chains, wherein the polypeptide chain(s) comprise one or more subunits comprising a malonyl/palmitoyl transferase domain (MPT domain), acetyl transferase domain (AT domain), and ketoacyl synthase domain (KS domain), and at least one amino acid substitution in the MPT domain at a position corresponding to R130, in the AT domain at a position corresponding to I306, and/or in the KS domain, preferably in the acyl binding channel and/or at KS domain binding site to ACP, to modulate affinities of acyl intermediates, and optionally further amino acid substitution(s). The present invention relates to the respective polypeptide domains, nucleic acid molecules encoding the proteins (or the polypeptide domains) and host cells containing such nucleic acid molecules. The present invention relates to a method for the production of short fatty acids.
Resumen de: US2025207083A1
Provided herein are compositions and methods for reducing bacterial contamination during cell culture. Such compositions and methods utilize engineered peptides or recombinant cells capable of secreting such peptides into culture medium. Also provided are methods of using the engineered peptides for inhibiting bacterial growth during culturing of cells.
Resumen de: WO2025136969A1
A method of producing bioethanol in a bioethanol system and a control system for a bioethanol system is disclosed, the control system comprising a controller comprising one or more processors and an interface, wherein the one or more processors are configured to obtain a primary amino nitrogen (PAN) measurement; determine an input scheme based on the PAN measurement; and control one or more input devices of the bioethanol system according to the input scheme.
Resumen de: CN119698480A
A system for converting biomass to ethanol and other desired products is disclosed. The system comprises a plurality of bioreactors connected in series, and the bioreactors are connected through mills. The configuration enables the reaction time to be shortened, which is beneficial to industrial processing. The present disclosure relates to systems and methods for efficient conversion of biomass using integrated bioprocessing (CBP) to convert cellulosic biomass to fuels and/or chemicals, without the need for addition of enzymes and without the need for thermochemical pretreatment.
Resumen de: AU2023326110A1
A method of obtaining ethanol from a lignocellulosic biomass where said method comprises the following steps: Step 1: delignification of a lignocellulosic biomass using a modified Caro's acid; Step 2: recovering a solid portion of the delignification reaction mixture, wherein said solid portion comprises a substantially hemicellulose-free cellulosic component which comprises at most, up to 15 % w/w hemicellulose; Step 3: exposing the recovered solid portion of the resulting reaction mixture to an enzyme mix comprising cellulase enzymes to create a saccharification system which breaks down the cellulose into a saccharified composition, e.g., oligosaccharides Step 4: feeding the saccharified composition to an organism, such as yeast, with the ability to ferment sugars into ethanol.
Resumen de: EP4574985A1
The present invention relates to a process for preparing a biofuel composition, the biofuel composition obtainable by the process and the use of the biofuel. More specifically, the present invention is related to a process for producing, biofuel defined by a blend of fatty acid formal glycerol ester (FAGE) /fatty acid alkyl ester/acetal mixture/hydrotreated vegetable oil (HVO), the process being characterized by an enzymatic transesterification of fatty acid alkyl esters with glycerol formal and by the specific rates of the different components. The invention is also directed to the biofuel compositions obtained by said process as well as to the uses thereof.
Resumen de: CN119836472A
Disclosed herein are genetically engineered yeast cells capable of producing ethanol. The genetically engineered yeast cell comprises an exogenous polynucleotide sequence encoding a glyceraldehyde-3-phosphate dehydrogenase (gapN) enzyme that is at least 60%, at least 70%, at least 80%, at least 85%, at least 90%, at least 95%, at least 97%, at least 99%, or 100% identical to at least one of SEQ ID NO: 28, 32, 48, 52, 64, 68, 80, 92, and 96.
Nº publicación: PL447209A1 23/06/2025
Solicitante:
INSTYTUT TECH PRZYRODNICZY PANSTWOWY INSTYTUT BADAWCZY [PL]
INSTYTUT TECHNOLOGICZNO-PRZYRODNICZY PA\u0143STWOWY INSTYTUT BADAWCZY
Resumen de: PL447209A1
Przedmiotem zgłoszenia jest sposób brykietowania mizdry garbarskiej realizowany w brykieciarce mechaniczno-ślimakowej, wyposażonej w zespół zasilający głowicę brykietującą, w której znajduje się układ dozujący mizdrę i dodatki, zespół umożliwiający dodanie dodatków do mizdry oraz dysza drobnokroplista do dozowania dodatków płynnych. W przypadku mizdry garbarskiej o frakcji równej 15 mm i mniejszej niż 15 mm i podwyższonej wilgotności, zastosowano domieszki suche. Po rozdziale frakcji mizdry garbarskiej na wytrząsarce sitowej (1) dodaje się mizdrę ze zbiornika mizdry (2) oraz z rozdrabniacza (6) słomy rozdrobnioną słomę do kosza wsadowego (3), a w tulei (5) grzewczej ślimaka tłoczącego następuje brykietowanie mizdry. W przypadku mizdry większej niż 15 mm zastosowano suszenie konwekcyjne, po przesianiu na wytrząsarce (1) sitowej i rozdziale frakcji mizdry następuje suszenie konwekcyjne, a następnie dodaje się z dozownika dodatków płynnych w postaci oleju do mizdry. W tulei (5) grzewczej ślimaka tłoczącego następuje brykietowanie mizdry. Tuleja grzewcza ma każdorazowo temperaturę od 105°C do 220°C. Sposób brykietowania prowadzony jest każdorazowo w temperaturze otoczenia w granicach od +5°C do +30°C.