CN207933391U - A kind of methanol steam aerator - Google Patents

Abstract

The utility model discloses a kind of methanol steam aerator, is made of tube still heater, reaction kettle, cross methanol aerator；The tube still heater is exactly the device that liquid methanol heating is become to gaseous methanol by steam；The cross methanol aerator is just provided in reactor bottom methyl alcohol vaporizing device.It is shortened using the reaction time of the single reaction kettle of the utility model, time of single reaction kettle reaction is 5 hours/kettle, 36 KWhs/ton of coarse biodiesel electricity consumption, with 0.70 ton/ton of steam, with 0.4 ton/ton of water, 6 yuan/ton of equipment maintenance cost.The time can be saved 100 hours by often producing 100 tons of coarse biodiesels, economized on electricity 1900 degree, saved 30 tons of steam, save 20 tons of water, save 400 yuan of equipment maintenance cost, it is fairly obvious that energy-saving and water-saving puies forward effect.

Description

A kind of methanol steam aerator

Technical field

The present invention relates to a kind of methanol steam aerators, the more particularly to methanol during the alcoholysis reaction of biodiesel Steam aerator belongs to the not standby technical field of alcoholysis process of biodiesel.

Background technology：

During the alcoholysis reaction of biodiesel, the common concentrated sulfuric acid is made during waste animal and plant fat conversion biodiesel Catalyst, because the concentrated sulfuric acid has extremely strong catalytic efficiency, rate of catalysis reaction is most fast, and Costco Wholesale is cheap；But it is anti- The water carried secretly in the water and feedstock oil that should generate forms dilute sulfuric acid with sulfuric acid, these dilute sulfuric acids and water are always with entire anti- It answers in system so that reaction molar concentration is gradually reducing, to influence the reaction rate of entire reaction system, when extending reaction Between；In order to make reaction quickly be carried out to positive, liquid methanol is added in generally use, to improve the mole dense of methanol in reaction system Degree, promotes positive reaction to carry out；The dosage of methanol is caused to increase in this way, the byproduct dilute methanol that system generates increases, subsequent The time lengthening of dilute methanol rectification and purification technique, energy consumption increase；The time for surveying the single reaction kettle reaction of this technique is 6 hours/ Kettle, 55 KWhs/ton of the coarse biodiesel electricity consumption of production, with 1 ton/ton of steam, with 0.6 ton/ton of water, 10 yuan/ton of equipment maintenance cost. It wastes time and waste of energy.

The present invention provides a kind of methanol steam aerators, make former technique addition liquid methanol into methanol steam, then The abundant micro-bubble of methanol is greatly accelerated methanol and reacted with raw material by methanol steam aerator；Simultaneously using altogether It is not participated in the azeotropic mixture discharge that the methanol gas of reaction is formed with water by the boiling point of boiling object well below the property of the boiling point of water Reaction kettle.The reaction time of the single reaction kettle of technique is shortened after improvement, and the time for surveying the reaction of single reaction kettle is 5 hours/ Kettle, 36 KWhs/ton of coarse biodiesel electricity consumption, with 0.70 ton/ton of steam, with 0.4 ton/ton of water, 6 yuan/ton of equipment maintenance cost.It is i.e. every 100 tons of coarse biodiesels of production can save the time 100 hours, economize on electricity 1900 degree, save 30 tons of steam, save 20 tons of water, save 400 yuan of equipment maintenance cost.It saves the time and saves the energy again, substantially reduce production cost.

Invention content

The present invention provides a kind of methanol steam aerators, are made of tube still heater, reaction kettle, methanol aerator； The tube still heater is exactly the device that liquid methanol heating is become to gaseous methanol by steam；The methanol aerator Just it is provided in reactor bottom methyl alcohol vaporizing device；Assembling：Tube still heater connects reaction kettle, and cross is arranged in reactor bottom Methanol aerator；Technique：Liquid methanol is heated into gaseous methanol through tube still heater, and gaseous methanol accesses the first of reactor bottom Gaseous methanol is generated countless tiny bubbles by methanol aeration head, increases the contact surface of methanol gas and material by alcohol aerator Product accelerates positive reaction rate, reaches energy-saving and water-saving cost reduction target.The methanol aerator is by base tube and ceramic aeration head group At；The base tube is arranged in cross or parallel type, preferably cross arrangement；3-10 titanium is arranged on base tube for 316L materials Ceramic aeration head, preferably 5-8 titanium ceramics aeration head.The titanium ceramics aeration head is true through high temperature by high-purity titanium dioxide powder Sky is sintered, and ceramic aeration head has countless 0.2-10um Minute pores；Gaseous methanol can generate nothing by methanol aerator Number 0.2-10um micro-bubbles, gas-liquid interface area is big, and bubble diffusion is uniform, substantially increases the contact surface of methanol gas and material Product increases residence time of the methanol gas in material, that is, greatly increases molar concentration of the methanol in material, accelerates positive reaction Rate；Ceramic aeration head corrosion resistance is strong.

It is considerably reduced using the reaction time of single reaction kettle of the invention, the time for surveying single reaction kettle reaction is 5 Hour/kettle, 36 KWhs/ton of coarse biodiesel electricity consumption, with 0.70 ton/ton of steam, with 0.4 ton/ton of water, 6 yuan of equipment maintenance cost/ Ton.The time can be saved 100 hours by often producing 100 tons of coarse biodiesels, economized on electricity 1900 degree, saved 30 tons of steam, save 20 tons of water, 400 yuan of equipment maintenance cost is saved, production cost is substantially reduced.

Description of the drawings

A kind of methanol steam aerator schematic diagrames of Fig. 1

1, tube still heater 2, reaction kettle 3, methanol aerator

Fig. 2 titanium ceramics aeration head schematic diagrames

31, base tube 32, titanium ceramics aeration head

Specific implementation mode

As shown in Figure 1, 2, a kind of methanol steam aerator is by tube still heater 1, reaction kettle 2,3 groups of methanol aerator At；The tube still heater 1 is exactly the device that liquid methanol heating is become to gaseous methanol by steam, purchased in market；Described Methanol aerator 3 is just provided in 2 bottom methyl alcohol vaporizing device of reaction kettle, is made of base tube 31 and ceramics aeration 32；Described Base tube 31 is in cross or parallel type, and 5-15 titanium ceramics aeration head 32 is arranged on base tube 31 for 316L stainless steels；Described Titanium ceramics aeration head 32 is sintered by titanium dioxide through high-temperature vacuum, and ceramic aeration head 32 has the small gas of countless 0.2-10um Hole；Gaseous methanol generates countless 0.2-10um micro-bubbles by cross methanol aerator, and gas-liquid interface area is big, bubble diffusion Uniformly, methanol gas and the contact area of material are substantially increased, increases residence time of the methanol gas in material, i.e., increases greatly Add molar concentration of the methanol in material, accelerates positive reaction rate；32 corrosion resistance of ceramic aeration head is strong.Assembling：Tubulation heats Device 1 connects reaction kettle 2, in reactor bottom setting cross methanol aerator 3；Production technology：Liquid methanol is through tube still heater 1, gaseous methanol is heated under vapor action, gaseous methanol accesses 2 bottom of reaction kettle by 316L stainless steel tubes, is exposed with methanol Gas device 3 connects, and gaseous methanol is generated countless 0.2-10um micro-bubbles by methanol aeration head 32, increases methanol gas and object The contact area of material accelerates positive reaction rate；The temperature of reaction kettle is maintained at 105-120 DEG C, preferential 115 ± 2 DEG C, when full response Between 10-14 hours, preferably 12 hours, normal pressure, catalyst sulfuric acid dosage be oil quality 0.6-1.2%, preferably 0.8%；Ensure Azeotropic mixture smoothly removes reaction system, and conversion ratio reaches 97% (feedstock oil is converted into biodiesel).

Be considerably reduced using the reaction time of reaction kettle of the invention single, efficiency improves, and can substantially energy-saving and water-saving, section Cost-saving is apparent, and it is as follows to implement measured result：

The time can be saved 100 hours by often producing 100 tons of coarse biodiesels from the above data, economized on electricity 1900 degree, saved 30 tons of steam saves 20 tons of water, saves 400 yuan of equipment maintenance cost.

Claims (2)

1. a kind of methanol steam aerator, it is characterized in that by tube still heater (1), reaction kettle (2), methanol aerator (3) group At；The tube still heater (1) is exactly the device that liquid methanol heating is become to gaseous methanol by steam；The methanol Aerator (3) is arranged in reaction kettle (2) bottom；Above-mentioned tube still heater (1) connection reaction kettle (2), sets in reactor bottom Set cross methanol aerator (3).

2. device as described in claim 1, the methanol aerator (3) is by base tube (31) and ceramic aeration head (32) group At；The base tube (31) is arranged in cross or parallel type；316L stainless steels, 3-10 titanium pottery of setting on base tube (31) Porcelain aeration head (32).