Kansai Chemical Engineering Co.

Amagasaki, Japan

Kansai Chemical Engineering Co.

Amagasaki, Japan
SEARCH FILTERS
Time filter
Source Type

Hama S.,Energy Development Corporation | Tamalampudi S.,Energy Development Corporation | Yoshida A.,Kobe University | Tamadani N.,Energy Development Corporation | And 5 more authors.
Bioresource Technology | Year: 2011

A process model for efficient glycerol separation during methanolysis in an enzymatic packed-bed reactor (PBR) was developed. A theoretical glycerol removal efficiency from the reaction mixture containing over 30% methyl esters was achieved at a high flow rate of 540. ml/h. To facilitate a stable operation of the PBR system, a batch reaction prior to continuous methanolysis was conducted using oils with different acid values and immobilized lipases pretreated with methyl esters. The reaction system successfully attained the methyl ester content of over 30% along with reduced viscosity and water content. Furthermore, to obtain a high methyl ester content above 96% continuously, long-term lipase stability was confirmed by operating a bench-scale PBR system for 550. h, in which the intermediates containing methyl esters and residual glycerides were fed into the enzyme-packed columns connected in series. Therefore, the developed process model is considered useful for industrial biodiesel production. © 2011 Elsevier Ltd.


Hama S.,Energy Development Corporation | Yoshida A.,Kobe University | Tamadani N.,Energy Development Corporation | Noda H.,Energy Development Corporation | And 2 more authors.
Bioresource Technology | Year: 2013

An engineering approach was applied to an efficient biodiesel production from waste cooking oil. In this work, an enzymatic packed-bed reactor (PBR) was integrated with a glycerol-separating system and used successfully for methanolysis, yielding a methyl ester content of 94.3% and glycerol removal of 99.7%. In the glycerol-separating system with enhanced retention time, the effluent contained lesser amounts of glycerol and methanol than those in the unmodified system, suggesting its promising ability to remove hydrophilic impurities from the oil layer. The PBR system was also applied to oils with high acid values, in which fatty acids could be esterified and the large amount of water was extracted using the glycerol-separating system. The long-term operation demonstrated the high lipase stability affording less than 0.2% residual triglyceride in 22 batches. Therefore, the PBR system, which facilitates the separation of hydrophilic impurities, is applicable to the enzymatic biodiesel production from waste cooking oil. © 2012 Elsevier Ltd.


Patent
Kansai Chemical Engineering Co. and Bio energy Corporation | Date: 2015-06-17

A method for continuously producing a fatty acid ester of the present invention comprises (a) mixing and agitating an oil and fat starting material and a lower alcohol, and supplying a mixture to one of the catalyst reaction tubes filled with a lipase; (b) producing a fatty acid ester and glycerin in the catalyst reaction tube; (c) introducing an outflowing liquid from the catalyst reaction tube into a glycerin separation tank, thereby collecting the glycerin; (d) adding a lower alcohol to a separated liquid obtained by separating the glycerin from the outflowing liquid, mixing and agitating an obtained material, and supplying a mixture to a following catalyst reaction tube; (e) repeating the steps (b) to (d) until supply to a last catalyst reaction tube is performed; and (f) collecting a fatty acid ester from the separated liquid obtained from the last catalyst reaction tube. According to the method of the present invention, the concentration of a lower alcohol can be strictly controlled and by-product glycerin can be automatically removed.


Patent
Bio Energy Corporation and Kansai Chemical Engineering Co. | Date: 2010-02-15

Provided is a lactic acid bacterium capable of homolactic fermentation using a pentose as a substrate, the lactic acid bacterium utilizing a pentose, and in which a phosphoketolase pathway is blocked and a pentose phosphate pathway is activated. Also provided is a method for producing lactic acid from a pentose using the lactic acid bacterium and a method for preparing the lactic acid bacterium.


Patent
Kansai Chemical Engineering Co. and Bio energy Corporation | Date: 2013-03-21

A method for producing ethanol from lignocellulosic biomass using yeast at low cost is provided. The method of the present invention for producing ethanol from lignocellulosic biomass includes steps of (1) pretreating lignocellulosic biomass, (2) treating a cellulose fraction obtained in Step (1) with a cellulose hydrolase, (3) mixing saccharified biomass obtained in Step (2) with yeasts to perform ethanol fermentation, and (4) subjecting a fermentation product obtained in Step (3) to a solid-liquid separation, wherein a cycle consisting of Steps (1), (2), (3) and (4) is repeated twice or more, and yeasts obtained in Step (4) are used as all or a portion of yeasts in Step (3) of the subsequent cycle.


Patent
KANSAI CHEMICAL ENGINEERING Co. and Bio Energy Corporation | Date: 2010-10-20

A method for continuously producing a fatty acid ester of the present invention comprises (a) mixing and agitating an oil and fat starting material and a lower alcohol, and supplying a mixture to one of the catalyst reaction tubes filled with a lipase; (b) producing a fatty acid ester and glycerin in the catalyst reaction tube; (c) introducing an outflowing liquid from the catalyst reaction tube into a glycerin separation tank, thereby collecting the glycerin; (d) adding a lower alcohol to a separated liquid obtained by separating the glycerin from the outflowing liquid, mixing and agitating an obtained material, and supplying a mixture to a following catalyst reaction tube; (e) repeating the steps (b) to (d) until supply to a last catalyst reaction tube is performed; and (f) collecting a fatty acid ester from the separated liquid obtained from the last catalyst reaction tube. According to the method of the present invention, the concentration of a lower alcohol can be strictly controlled and by-product glycerin can be automatically removed.


Patent
Kobe University, Bio Energy Corporation and Kansai Chemical Engineering Co. | Date: 2010-12-10

The present invention provides a method for producing a cellulose degradable yeast, comprising the step of co-introducing genes coding for at least two cellulose-degrading enzymes into a yeast host via integration with a yeast sequence. According to the invention, a yeast having an improved cellulose degradation ability are provided.


Patent
Kansai Chemical Engineering Co. and Bio Energy Corporation | Date: 2014-09-03

Disclosed is a method for producing ethanol, including: culturing yeast transformed so as to display an enzyme on the cell surface in a medium containing particles of lignocellulosic biomass, thereby producing ethanol, wherein the enzyme is an enzyme involved in hydrolysis of the lignocellulosic biomass. The present invention makes it possible to provide a method for producing ethanol by which a high ethanol yield can be achieved from lignocellulosic biomass with lower initial cell concentration and added enzyme amount.


A solution component recovery method, a solution component recovery apparatus, and an impregnation process/impregnation component recovery system for separating a first component from a second component. The separation between the first and second components is accomplished by reducing the pressure on a solution that contains the first component, which results in the solidification of the first component in the solution at a temperature that is equal to or higher than a predetermined solidification temperature. The second component, in which the first component is dissolved, is evaporated at a temperature range that is less than the predetermined solidification temperature. The evaporated second component is then recovered by a cooling step.


In a solution recovery apparatus 40, a solution containing an impregnation agent, the solidification reaction of which progresses in the absence of oxygen and at a predetermined solidification temperature or higher, and a solvent in which the impregnation agent is dissolved is stored in a separation section 41. The pressure in the internal space of the separation section 41 is reduced while supplying air (oxygen) to the solution stored in the separation section 41, with a stirring section 42 stirring the solution and with a heat exchange section 43 adjusting the temperature of the solution to a predetermined separation temperature range below the predetermined solidification temperature, to evaporate the solvent contained in the solution. The evaporated solvent is cooled and recovered by a primary water recovery section 51 and a secondary water recovery section 61. By separating the impregnation agent and the solvent at a reduced pressure and in the predetermined separation temperature range while supplying oxygen as described above, solidification of the impregnation agent is prevented.

Loading Kansai Chemical Engineering Co. collaborators
Loading Kansai Chemical Engineering Co. collaborators