A method for producing acidified oil by pressurizing soapstock or/and oil foot
A technology of acidifying oil and oil feet, which is applied in the direction of recovering fat oil/fatty acid from waste materials, producing fat, and recycling fatty substances. It can solve the problems of large sulfuric acid consumption, low reaction temperature, and high production cost, and achieve acid value and saponification The effect of increasing the price, increasing the reaction temperature, and improving the product quality
Active Publication Date: 2019-05-17
江苏润睿生物科技有限公司
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Its disadvantages are that the reaction temperature is low, the consumption of sulfuric acid is large, and the product quality is poor.
As described in the patent 201420505341.X, the acidified oil production equipment includes an induced draft fan, a deodorizer and at least one reaction kettle. high concentration CO 2 Aqueous solution replaces sulfuric acid to carry out the new method of acidification reaction of soap (oil) foot, because CO 2 The weak acidity of the aqueous solution has problems such as low reaction temperature, incomplete reaction, and high cost
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[0013] Such as figure 1 Shown, a kind of soapstock or / and oil foot pressurized reaction production acidified oil method, this method is: oil foot and / or soapstock and the sour water from the lower layer of the first settling tank are pumped into normal pressure pre-set The normal pressure pre-acidification reaction is carried out in the acidification reaction kettle, the mass ratio of the oil foot and / or soap stock to the acid water in the lower layer is 1:0.1-0.5; the reaction temperature of the normal pressure pre-acidification reaction is 30-90°C, and the Fully react by means of mechanical stirring or hydraulic circulation or pneumatic stirring;
[0014] After the normal pressure pre-acidification reaction is sufficient, it is discharged into the second settling tank for sedimentation and separation. The acid water in the lower layer in the second settling tank is pumped into the wastewater treatment system for corresponding treatment and then discharged up to the standard....
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The invention disclose a novel production method of acid oil by nigre or / and soapstock pressurized reaction. The method is as follows: pumping the nigre and / or soapstock and acid water from a lower layer of a first sedimentation tank into an atmospheric preacidification reactor to carry out an atmospheric acid preacidification reaction; discharging the reaction products from the preacidification reaction into a second settlement tank for settling separation, pumping the upper oil soap in the second sedimentation tank into a pressurized acidification reactor, and adding sulfuric acid, carrying out atmospheric reaction, introducing steam into the pressurized acidification reactor or directly heating by heat conducting oil, increasing the reaction temperature and pressure, pressurizing the materials in the pressurized acidification reactor into the first sedimentation tank for settlement and layering, pumping the acid water in the lower layer of the first sedimentation tank into the pre acidification reactor by a pump and carrying out an atmospheric preacidification reaction, so as to obtain an acid oil product which is the upper layer oil layer. The invention has the advantages of simple process, environment-friendliness, clean production, low processing cost and fast reaction.
Description
technical field [0001] The invention relates to the field of acidified oil processing, in particular to a method for producing acidified oil by pressurizing soapstock or / and oil foot. Background technique [0002] With the rapid development of the oleochemical industry, the demand for acidified oil, a renewable raw material, is increasing year by year. At present, most of the domestic production of acidified oil with soap (oil) residue as raw material is to build several ponds or several reaction kettles, adopt the normal pressure reaction process, put soap (oil) residue and sulfuric acid into steam to carry out the normal pressure acidification reaction, and then The acidified oil product is obtained through sedimentation and separation. Its disadvantages are low reaction temperature, large consumption of sulfuric acid, and poor product quality. As described in the patent 201420505341.X, the acidified oil production equipment includes an induced draft fan, a deodorizer an...
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IPC IPC(8): C11B13/02
CPCY02W30/74
Inventor 余林强余林健魏丽燕余博伟余博文
Owner 江苏润睿生物科技有限公司
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