A kind of gac is removed the method for sulfurous gas in fruit distillate liquor
(1) technical field under
The present invention relates to a kind of gac and remove the method for sulfurous gas in fruit distillate liquor, belong to food processing technology field.
(2) background technology
Fruit distillate liquor claims again Fruit brandy, is to take fruit as raw material the wine forming through fermentation, distillation.Normal said brandy, to take the brandy that grape is raw material, the brandy leading to other fruit, should be titled with the title of raw fruit, as other Fruit brandies such as kirsch, apple brandy, questshc, hawthorn brandy, banana brandy.
Fruit distillate liquor, as the converted products of fruit, has the odour characteristics of typical fruit, fermentation and distillation.Material choice scope is wide, except utilizing the fruit wine of normal fermentation, can also utilize, does the undesirable fruit wine of fermented wine quality, wine pin and fermentation pomace etc., and therefore producing fruit distillate liquor has resourceful advantage.The important additives that sulfurous gas is produced as fruit wine, has sterilization, clarification and the effect such as anti-oxidant, uses extensively and can not replace in fruit wine is produced.In enterprise produces, have much to can be used for doing and in fruit distillate liquor base wine, wine pin or fermentation skin slag, contain too much sulfurous gas or corresponding fruit fermented wine and be not suitable for selling the suitable situation of cooking liquor because of factors such as quality, the quality that as far as possible keeps beneficiating ingredient in wine, maximum raising liquor when how effectively removing sulfurous gas is wherein the difficult problem that enterprise faces.
Liquor production technique mostly is second distillation method at present, first base wine is steamed to 26%~30%(Vol) obtain single flash wine, then to the distillation of single flash wine, except foreshot's wine tail, collect wine body and obtain second distillation wine (68%~72%(Vol)).The base wine that some are contained to sulfurous gas distills, and twice distillation meeting is concentrated by sulfurous gas wherein, the sulfurous gas that the cocktail party of gained second distillation contains high level.The certain methods of removal sulfurous gas is mainly concentrated is at present that distillation base wine or distillation wine liquid afterwards is before processed with sulfur elimination, comprises calcium salt, hydrogen peroxide, gac etc.We studies have shown that, adopt while directly wine liquid being used to activated carbon treatment and wine liquid need be heated to 70 ℃ and insulation 12h, sulfurous gas in wine could be down to below 1mg/L, during wine liquid need heating, special insulating container and the necessary treatment time of needs of needs.
In the process of liquor, the wine vapour mixture steaming is temperature higher than the gas of 80 ℃, and sulfurous gas is wherein also gas, if the sulfur dioxide gas that utilizes gac to remove before the condensation of wine vapour wherein will be a brand-new research topic.
(3) summary of the invention
In order to address the above problem, the invention provides a kind of method that gac is removed sulfurous gas in fruit distillate liquor, the method can effectively be removed the sulfurous gas in liquor, promotes the quality of fruit distillate liquor.The present invention is in conjunction with distil process and desulfurization process, take fruit fermented wine as raw material, by distillation, make wine vapour by gac packed column, increased the contact area of wine vapour and gac, utilize gac by gaseous sulfur dioxide molecular adsorption reaction in liquor vapour (>=80 ℃), improve reaction efficiency, reduced the content of sulfurous gas in liquor vapour, by condensation, obtained the fruit single flash wine that content of sulfur dioxide is lower; Single flash wine is carried out to second distillation by the method, except foreshot, collect wine body, obtain the second distillation wine that content of sulfur dioxide is lower, realized effective removal of sulfurous gas in fruit distillate liquor.Gac is oxidized and sulfurous gas or inferior sulfate radical can be oxidized to sulfate radical by adsorption catalysis, and sulfate radical is difficult to again be converted into inferior sulfate radical and sulfurous gas, and the present invention is a method of effectively removing sulfurous gas in liquor.
A method of removing sulfurous gas in fruit distillate liquor, comprises the following steps:
(1) preparation of gac packed column
Between distiller and condenser, connect a gac packed column, gac packed column internal diameter is 20~30mm, and length is 0.6~0.9m, fills full gac in gac packed column, and activated carbon granule particle diameter is 5~7mm.
(2) distillation for the first time
Fruit is distilled to the distillation of base wine, and the 40%(that steams base capacity for liquor all steams alcohol in base wine), the wine vapour that distillation obtains passes through gac packed column and condenser successively, collects and obtains single flash wine.
3) distillation for the second time
Single flash wine is distilled again, and the wine vapour that distillation obtains passes through gac packed column and condenser more successively, goes 1% foreshot, cuts wine tail, collects wine body and obtains liquor (68%~72%Vol).
Gained liquor is carried out to sulphur dioxide measuring, calculate sulfurous gas clearance rate.
A: sulfurous gas clearance rate, %.
C
1: total sulfur dioxide concentration in liquor, mg/L.
C
2: total sulfur dioxide concentration in liquor base wine, mg/L.
The invention has the beneficial effects as follows:
The present invention is according to a large amount of tests, gac packed column (long 0.6~0.9m is installed between distillation tower and condenser, packed column diameter 20~30mm), find out gac packed column and remove the processing method of sulfurous gas, according to the method, can effectively remove sulfurous gas in liquor, the method combines distil process and activated carbon sulfur removal technique first, in still-process, realized the removal of sulfurous gas, sulfurous gas clearance rate can reach 99.5%, sulfurous gas in fruit distillate liquor be can effectively remove, step and the cost of removing sulfurous gas saved.Compare and utilize gac directly to remove sulfurous gas in liquor (70 ℃ of gacs that directly add 2g in every kg wine liquid are processed 12 hours), reduced the sulphur removal time, reduced energy consumption, saved running cost.The method is safe and reliable, the pure inclusion-free of obtained wine thereby liquid.The present invention utilizes successful Application that gac removes sulfurous gas in fruit distillate liquor also for fruit wine and the further research and development of converted products thereof provide reference in distillation process.
The reagent of gac sulfurous gas in removing liquor is take in the present invention, through distillation, processes, and can effectively reduce content of sulfur dioxide in fruit distillate liquor, retains the aroma component of fruit wine, improves utilization ratio and the quality of fruit wine.
(4) embodiment
The gac packed column using in the present invention can be used high temperature material to make, and as rubber hose, stainless steel tube etc., while installing with distiller and condenser, should guarantee to be tightly connected.
Embodiment 1
Distillation base wine 1, its basic index:
(1) preparation of gac packed column
Selecting activated carbon granule particle diameter is 5~7mm, before using, fully cleans, and washes away impurity; Packed column internal diameter is 30mm, and long is 0.7m; Gac packed column is arranged between distiller and condenser.
(2) distillation for the first time
Get 10L distillation base wine, distillation, makes wine vapour successively by gac packed column and condenser, collects distillate 4L, obtains single flash wine, its basic index:
(3) distillation for the second time
Single flash wine redistillation to step (2) gained, makes wine vapour successively by gac packed column and condenser, removes 1% foreshot, cuts wine tail, collects wine body (68%~72%Vol) and obtains liquor.
Gained liquor is measured,
According to formula
calculate in this example sulfurous gas clearance rate higher than 99.5%.
Embodiment 2
Distillation base wine 2, its basic index:
(1) preparation of gac packed column
Selecting activated carbon granule particle diameter is 5~7mm, before using, fully cleans, and washes away impurity; Packed column internal diameter is 20mm, and long is 0.9m; Gac packed column is arranged between distiller and condenser
(2) distillation for the first time
Get 10L distillation base wine, distillation, makes wine vapour successively by gac packed column and condenser, collects distillate 4L, obtains single flash wine, its basic index:
(3) distillation for the second time
Single flash wine redistillation to step (2) gained, makes wine vapour successively by gac packed column and condenser, removes 1% foreshot, cuts wine tail, collects wine body (68%~72%Vol) and obtains liquor.
Get gained liquor and measure,
According to formula
calculate, in this example, sulfurous gas clearance rate is 99.6%.