Heat recovery method and the bards

 

(57) Abstract:

The invention relates to the alcohol industry and can be used in the production of rectified ethyl alcohol. The method involves the removal of hot bards use of columns, its circulation in a closed circuit in the heat exchanger, additional heated with live steam to samosatene and circulation formed in the process of samosatene vapor for heating use columns. The remainder of the bards and the steam condensate is removed from the process. Pressure bards before circulation 116 - 118 kPa, and after additional heating to 120 - 125 kPa. This invention reduces teploenergostroy for heating the column and the amount of by-product of alcohol production - bards that solves the problem of environmental protection. 1 Il.

The invention relates to the alcohol industry and can be used in the production of food ethyl alcohol alcohol and relates to a method of utilization of stillage.

In the alcohol industry the most heat are processes bragorektifikatsii and rectification, where for heating of columns using steam.

In the author's certificate of the USSR N 425937, class. tion, using the resulting steam to heat the columns.

However, this method does not solve the problem of disposal of by-product of alcohol production - bards.

There is a method of utilization of stillage as a heat carrier, in the production of rectified ethyl alcohol, providing for the removal of the brew from the distillation column, separating it into two streams, one of which is heated using heat bards, and the other pairs use distillate, followed by mixing streams (USSR author's certificate N 798166, CL C 12 F 1/04, 1979).

The disadvantage of this method is the dilution bards capacitor pair, which increases its quantity and leads to additional costs for drying and disposal of stillage.

Closest to the present invention is a method of heat recovery bards in the production of food rectified ethyl alcohol, providing preheating the mash, the liberation of carbon dioxide, heat in the heat exchanger bards and return to use the column, optionally heated steam (USSR author's certificate N 1206294, CL C 12 F 1/06, 1986).

And although the known method solved the problem - reducing teploenergostal, namely dilution laitance and steam condensate, additional teploenergostroy for heating use columns and the complexity of the process associated with the removal and return of the mash.

The problem solved by the invention is to reduce teploenergostroy by eliminating the use of steam for heating use columns and reduce the number of bards - a by-product of alcohol production by eliminating dilution her condensate steam.

The technical result of the present invention is the reduction of teploenergostroi with a simultaneous decrease in the number of recyclable bards.

This is achieved in that the heat recovery method and Brady obtained in the process of production of ethyl alcohol of alcohol or bragorektifikatsii providing for the allotment hot bards use of columns, and use it as a coolant, according to the invention bard circulate in a closed circuit in the heat exchanger, where it is additionally heated with live steam to samosatene and the resulting vapors circulate in counter-current to the heating of the use of the column and the steam condensate is removed from the process, with the initial pressure of the exhaust bards 116-118 kPa, the it zone 1 use column circulate in a closed circuit, including the heat exchanger 2, the pump 3 and the pipe 4, and 5.

Bard pressure 116 - 118 kPa circulate from the bottom of zone 1 via line 4 through the pump 3 into the tubular space 6 of the heat exchanger 2, in the annular space 7 isinjected.

Gave the heat the bard pairs divert condensate and vapors formed during samosatene bards, circulate in countercurrent through the pipeline 5 through the control valve 8 in the lower zone for heating use columns.

Excess bards take away from the column through baroreceptor 9 with shutoff valves 10.

Samosatene bards occurs due to the pressure difference included in the circulation loop bards, equal to 116 - 118 kPa and evaporated - 105 - 106 kPa.

Example 1. In the process bragorektifikatsii received 130 kg bards 1 gave absolute alcohol.

The pressure selected for the circulation of bards 116 kPa, temperature - 103oC.

The pressure of the evaporated stillage 120 kPa. temperature - 105oC.

This pressure differential is sufficient to samosatene bards.

Example 2. Also received the same number of bards, as in example 1.

The pressure selected bards on the circulation 118 kPa, temperatures first solves a complex problem - heating of the column is not sharp steam, as is customary in the known methods, and pairs of samosatene bards with a simultaneous decrease in the number of bards 20% and more complete utilization, thus, waste alcohol production.

Thus, the technical result - the reduction of teploenergostroi and quantity of by-products of alcohol production.

Heat recovery method and the stillage obtained in the process of production of ethyl rectified alcohol, providing for the removal of hot bards from the use of the column and use it as a coolant, characterized in that the grains are circulating in a closed circuit in the heat exchanger, where it is additionally heated with live steam to samosatene and generated in the process of samosatene couples circulate in countercurrent Barda for heating use columns with the withdrawal of the remainder of the bards and steam condensate from the process, the pressure bards before circulation - 116 - 118 kPa, and after additional heating to 120 - 125 kPa.

 

Same patents:
The invention relates to the production of alcohol with various additives

The invention relates to the alcohol industry, namely the production method rectified ethyl alcohol "LUX" for vodka and other high-quality alcoholic beverages
The invention relates to the wine industry

The invention relates to food industry, mainly to methods of production of strong alcoholic beverages, and can be used to obtain cognac
Brandy "armenak" // 2108378

The invention relates to food industry, mainly to methods maturation of alcoholic beverages and can be used to accelerate the maturation of wines and alcoholic drinks like brandy and cognac

The distillation // 2099125
The invention relates to techniques for the separation of liquid products by distillation and can be used in food, perfume, chemical and other industries in the separation of multicomponent mixtures by distillation and concentration of solutions by evaporation

The invention relates to thermal processing of dielectric materials and may be used for thermal processing of liquid and solid dielectric materials in various industries, for example, in the chemical, medical, food

The invention relates to the distillation of solutions and can be used to separate pure phase, solutions of all types:

liquids miscible in any relationship, t

The invention relates to the alcohol industry, and in particular to methods of cleaning contaminated industrial wastewater (PASV)

The invention relates to the disposal of waste in the production of alcohol, yeast, citric acid, lysine and other fermentation products and can be used for fractionation bards on organic and inorganic fractions

The invention relates to the processing of distillery stillage, which is going to alcohol production and can be used in the hydrolysis, pulp and paper and other technologies, where it turns out the bard as a by-product
The invention relates to the production of alcohol from grain raw materials

The invention relates to the wine industry, in particular to the disposal of glutinous wine sediments containing Prussian blue

FIELD: alcohol production.

SUBSTANCE: method provides for separating dregs, neutralizing remaining acid colloidal slurry, coagulating and flocculating it form sediment, clarifying water phase, separating sediment and combining it with initially separated dregs. Resulting mixture is concentrated and completed with additives increasing its nutritional value. Clarified water phase is freed from dissolved organics and further used for technical needs.

EFFECT: increased economical efficiency and improved environmental condition.

8 cl, 1 dwg

FIELD: alcohol and feed industry, in particular method for utilization of distillery dreg.

SUBSTANCE: claimed method includes distillery dreg filtering, purification with tereklit clay in amount of 8-10 g/l followed by blending of purified solution with soy flour in ratio of 5:1.

EFFECT: method of improved efficiency and decreased cost.

3 tbl, 2 ex

Press-batcher // 2262442

FIELD: food industry.

SUBSTANCE: press-batcher comprises cylindrical pressing housing that receives the pressing screw, pressing head, and drive. The cylindrical pressing housing is connected with the vacuum chamber. The vacuum chamber is connected with the conical housing of the vacuum gate valve. The vacuum gate valve receives the conical screw that passes through vacuum chamber and has blades inside the vacuum chamber. The pressing head is provided with cutting mechanism having control rotation drive and device for supplying hot air. The vacuum chamber is provided with the device for evacuating moisture air.

EFFECT: enhanced efficiency.

1 dwg

FIELD: alcohol production; methods of the distillery dreg processing.

SUBSTANCE: the invention is pertaining to the field of alcohol production. The method of the distillery dreg processing consists in mixing of the distillery dreg with a lime at the temperature of 80-85°C, neutralization of the by-products of fermentation at pH 9.0-9.5 and the temperature of 75-80°C, filtration, vacuumization at the temperature of 85-90°C and at the steam pressure of 100-150 mmHg and pH of the mediums of 9.0-9.5, withdrawal of the light cut fraction, filtration of the still residue of the distillery dreg, oxidation of the light cut fraction, babbling, adsorption at the temperature of 25-30°C, regeneration of the adsorbent by the direct steam. The method allows to raise effectiveness of the filtration.

EFFECT: the invention ensures the increase of effectiveness of the filtration.

1 ex

FIELD: alcohol production.

SUBSTANCE: line comprises vacuum chamber with steam heater and gutter, first and second horizontal evaporators, collecting tank, and batching pump. Process consists in heating distillery dregs in the first evaporator using primary steam fed into steam heater and then in the second horizontal evaporator and vacuum chamber using secondary steam from separator of the first horizontal evaporator, after which, in third stage, distillery dregs are dehydrated in vacuum chamber.

EFFECT: increased productivity and reduced power consumption.

2 cl, 1 dwg

Up!