The process of using spent lees from distillation to dissolve raw sugar for ethanol fermentation.

Abstract

OCR 09WP 08 / 01 / 2569 This invention aims to solve the problem of utilizing spent lees from distillation for dissolution purposes. Raw sugar is used in ethanol fermentation, which involves steps in the bile production system to produce bile. (Softener) (1) enters the heat exchanger (2) which receives steam energy (3) from Boiler (4) which uses coal as fuel, in which the hot water production process uses softener (1) at a usage ratio of 75%. Along with turning on the steam power (3) at a utilization rate of 95% of the fuel previously used, it produces hot water (4) with a higher temperature. 90 degrees Celsius into the raw sugar receiving hopper (6) of the raw sugar dissolving system along with the wastewater (Spent Lees) (14) from the bottom, the distillation tower (Rectifer) (13) is mixed at a ratio of 25% and the raw sugar dissolution step by Use a loader to scoop the raw sugar (5) into the raw sugar receiving hopper (6) of the raw sugar melting system, then start the pump. A rotating and stirring mechanism is used to dissolve the raw sugar into syrup, achieving a sweetness level of 55-60. Brix is ​​then pumped into the syrup storage tank (8), where the pH of the syrup is 4 - 5, so the enzyme invertase is added. (7) At a usage ratio of 65% of the original process, where the efficiency of converting sucrose to glucose and more than 20 percent fructose sugar from the original process and the syrup is left to rest in the syrup storage tank (8). At least 8 hours, the fermentation process involves breaking down the sucrose molecules from disaccharide sugars into smaller molecules. Then transfer it into the fermentation tank (1) along with the addition of molasses (9) and add yeast (10) to convert the sugar. It is converted into ethanol, with a reduced fermentation time because the yeast takes less time to break down the sugar.

Claims

OCR 09WP 08 / 01 / 2569 1. The process of using spent lees from distillation to dissolve raw sugar for fermentation. Ethanol consists of: Step 1 The water production system will produce softener (1) water into the heat exchanger (2), which The heat exchanger receives steam energy (3) from a boiler (4) that uses coal as fuel. Which has the following characteristics: Step 2. Production of hot water using water softener (1) at a ratio of 75% of the original process. Along with turning on the steam power (3) at a ratio of 95% of the fuel previously used, it produces hot water (4) with a higher temperature. 90 degrees Celsius into the raw sugar receiving hopper (6) of the raw sugar dissolving system along with the wastewater (Spent Lees) (14) from the bottom of the distillation tower (Rectifier) ​​(13) is mixed at a ratio of 25%. Step 3. Dissolving raw sugar using a loader. Scoop the raw sugar (5) into the raw sugar receiving hopper. (6) of the raw sugar dissolving system, then turn on the circulating pump and mixing stirrer to dissolve the raw sugar into syrup. With a sweetness value of syrup at 55-60 Brix, then pumped into syrup storage tank (8) where the pH of the syrup is at 4 - 5 Therefore, add the enzyme invertase (7) at a ratio of 65% of the original process, where the efficiency Converting sucrose to glucose and fructose by more than 20 percent compared to the original process, and... Let the syrup rest in the syrup storage tank (8) for at least 8 hours. Step 4: Fermentation. This involves using syrup that has had its sucrose molecules broken down from disaccharide sugars into monosaccharide sugars. Then it is sent into the fermentation tank (11) along with the addition of molasses (9) and yeast (10) is added to convert the sugar into Ethanol is produced with a reduced fermentation time because the yeast takes less time to digest the sugar.

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