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公开(公告)号：CL2017002654A1
公开(公告)日：2018-03-16
申请号：CL2017002654
申请日：2017-10-19
Applicant: FPINNOVATIONS
Inventor： JEMAA NACEUR , PALEOLOGOU MICHAEL , MAHMOOD TALAT
Abstract: La hidrólisis de ácido de biomasa es un paso importante para liberar el componente de azúcares antes de convertirlos en combustibles y/o productos bioquímicos. Durante dicho proceso, se usa una cantidad considerable de ácido mineral, tal como ácido sulfúrico. En la mayoría de los pasos, el ácido residual se neutraliza con cal antes del paso de conversión de azúcar. Al hacer esto, se genera una corriente de desperdicio de sulfato de calcio y se manda a desechar. La separación eficaz de ácido de los azúcares permitiría reciclar el ácido y hacer que el proceso entero sea más económicamente viable. Descubrimos que el lecho de resina empaquetado con una resina retardante de ácido se puede usar para alcanzar una separación eficaz (es decir, recuperación del 98.5% del ácido) del ácido sulfúrico a partir de los azúcares. El lecho de resina se puede generar simplemente con agua.
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公开(公告)号：CA3055630C
公开(公告)日：2022-12-13
申请号：CA3055630
申请日：2018-03-07
Applicant: FPINNOVATIONS , LAKEHEAD UNIV
Inventor： FATEHI PEDRAM , WANG SHOUJUAN , PRICE JACQUELYN , JEMAA NACEUR , MAHMOOD TALAT , PALEOLOGOU MICHAEL
Abstract: A water-based process was developed for the synthesis of aminated lignin copolymers with high MW, thermal stability and solubility in water over a wide range of p H values. The cationic lignin copolymer described herein comprises: a grafting ratio of (weight of cationic amine compound) / (weight of lignin) of 70 to 200% and a charge density of +1.4-3.0 meq/g. This cationic lignin copolymer can be used as a flocculant in numerous wastewater streams including municipal and industrial systems and sludge dewatering in the pulp & paper, mining and oil industries.
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公开(公告)号：CA3138369A1
公开(公告)日：2020-11-05
申请号：CA3138369
申请日：2020-04-28
Applicant: FPINNOVATIONS
Inventor： MAHMOOD TALAT , JEMAA NACEUR
Abstract: A process for recovering alkali from power boiler ash is provided. The power boiler ash is first contacted with Na2CO3 to produce a mixture containing settling and non-settling solid particles. A fraction of the settling particles is then separated from the mixture to produce a first clarified alkaline solution. The first clarified alkaline solution contains species such as NaOH and KOH depending upon the power boiler ash characteristics. The non-settling solid particles may optionally be further separated from the first clarified alkaline solution to obtain a second clarified alkaline solution. This process is also applicable for the extraction of alkali from other oxide/hydroxide containing materials.
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Patent Agency Ranking
公开(公告)号：CA3138369C
公开(公告)日：2022-07-05
申请号：CA3138369
申请日：2020-04-28
Applicant: FPINNOVATIONS
Inventor： MAHMOOD TALAT , JEMAA NACEUR
Abstract: A process for recovering alkali from power boiler ash is provided. The power boiler ash is first contacted with Na2CO3 to produce a mixture containing settling and non-settling solid particles. A fraction of the settling particles is then separated from the mixture to produce a first clarified alkaline solution. The first clarified alkaline solution contains species such as NaOH and KOH depending upon the power boiler ash characteristics. The non-settling solid particles may optionally be further separated from the first clarified alkaline solution to obtain a second clarified alkaline solution. This process is also applicable for the extraction of alkali from other oxide/hydroxide containing materials.
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公开(公告)号：CA2981729A1
公开(公告)日：2016-10-27
申请号：CA2981729
申请日：2016-04-20
Applicant: FPINNOVATIONS
Inventor： JEMAA NACEUR , PALEOLOGOU MICHAEL , MAHMOOD TALAT
Abstract: Acid hydrolysis of biomass is an important step for releasing the component sugars before converting them to fuels and/or biochemicals. During such a process, a significant amount of mineral acid, such as sulfuric acid, is used. In most cases, the residual acid is neutralized with lime before the sugar conversion step. By doing so, a waste calcium sulphate stream is generated and sent to disposal. The efficient separation of acid from the sugars would allow the recycle of the acid and make the entire process more economically viable. We found that a resin bed packed with an acid retardation resin can be used to achieve an efficient separation (i.e. 98.5% recovery of the acid) of the sulfuric acid from the sugars. The resin bed can be simply regenerated with water.
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公开(公告)号：CA2981729C
公开(公告)日：2018-10-02
申请号：CA2981729
申请日：2016-04-20
Applicant: FPINNOVATIONS
Inventor： JEMAA NACEUR , PALEOLOGOU MICHAEL , MAHMOOD TALAT
Abstract: Acid hydrolysis of biomass is an important step for releasing the component sugars before converting them to fuels and/or biochemicals. During such a process, a significant amount of mineral acid, such as sulfuric acid, is used. In most cases, the residual acid is neutralized with lime before the sugar conversion step. By doing so, a waste calcium sulphate stream is generated and sent to disposal. The efficient separation of acid from the sugars would allow the recycle of the acid and make the entire process more economically viable. We found that a resin bed packed with an acid retardation resin can be used to achieve an efficient separation (i.e. 98.5% recovery of the acid) of the sulfuric acid from the sugars. The resin bed can be simply regenerated with water.
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公开(公告)号：CA3055630A1
公开(公告)日：2018-09-13
申请号：CA3055630
申请日：2018-03-07
Applicant: FPINNOVATIONS , UNIV LAKEHEAD
Inventor： FATEHI PEDRAM , WANG SHOUJUAN , PRICE JACQUELYN , JEMAA NACEUR , MAHMOOD TALAT , PALEOLOGOU MICHAEL
Abstract: A water-based process was developed for the synthesis of aminated lignin copolymers with high MW, thermal stability and solubility in water over a wide range of p H values. The cationic lignin copolymer described herein comprises: a grafting ratio of (weight of cationic amine compound) / (weight of lignin) of 70 to 200% and a charge density of +1.4-3.0 meq/g. This cationic lignin copolymer can be used as a flocculant in numerous wastewater streams including municipal and industrial systems and sludge dewatering in the pulp & paper, mining and oil industries.
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公开(公告)号：EP3286341A1
公开(公告)日：2018-02-28
申请号：EP16782421
申请日：2016-04-20
Applicant: FPINNOVATIONS
Inventor： JEMAA NACEUR , PALEOLOGOU MICHAEL , MAHMOOD TALAT
CPC classification number: C13B20/146 , B01J41/04 , B01J41/13 , C01B17/905 , C07C51/47 , C13K1/02 , C13K13/002 , C07C55/10 , C07C53/02 , C07C59/08
Abstract: Acid hydrolysis of biomass is an important step for releasing the component sugars before converting them to fuels and/or biochemicals. During such a process, a significant amount of mineral acid, such as sulfuric acid, is used. In most cases, the residual acid is neutralized with lime before the sugar conversion step. By doing so, a waste calcium sulphate stream is generated and sent to disposal. The efficient separation of acid from the sugars would allow the recycle of the acid and make the entire process more economically viable. We found that a resin bed packed with an acid retardation resin can be used to achieve an efficient separation (i.e. 98.5% recovery of the acid) of the sulfuric acid from the sugars. The resin bed can be simply regenerated with water.
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