Myande’s
continuous low-temperature evaporation and concentration for syrup is
characterized by high heat transfer efficiency, short heating time of materials
and low cost. Myande evaporator is equipped with steam jet pumps so that it
makes full use of secondary steam from the liquefaction section to reduce the
steam consumption. Besides, its energy saving effect and consumption reduction is
outstanding. At the same time, it ensures that materials keep low temperature
during the evaporation process to avoid affecting the syrup quality.
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| Multi-effect Falling Film Evaporator |
MVR Evaporation and Concentration System
MVR
evaporator is a new efficient and energy-saving evaporation and concentration
system. The secondary steam from the evaporator can adopt adiabatic compression
of the compressor to increase its temperature and pressure. This steam then
enters the heating chamber as the heating steam to recycle latent heat of the
secondary steam. If the system works normally without the discharge of
secondary steam, it will be necessary to add a little steam which can save
energy and reduce cost.
Myande
has rich experience in the in the design and construction of evaporation and
concentration system. According to different products and capacities, various
projects will be designed. In accordance with the capacity, the evaporation can
be calculated accurately. The specialized 3-D design personnel can provide a
strong guarantee for the accurate construction of the project. What’s more,
evaporation equipment is diverse, including falling film evaporator and MVR
system. Customers have a variety of options to meet their needs.
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| MVR Evaporation and Concentration System |
Ion Exchange Column
In general,
after the filtration section, insoluble impurities and organic impurities in
water can be removed from the syrup. But there are also many soluble inorganic
impurities in water, small-molecule soluble protein, colored impurities, as
well as impurities of bad taste and odor. These impurities mainly exist in the
form of cations and anions.
Ion
exchange column uses ion exchange resin to adsorb mineral ions, pigments and
proteins from the syrup for the purpose of refining the syrup and reducing the
conductivity. It’s called the desalination of syrup. Cationic exchange column
replaces cationic impurities（Ca2+,Mg2+ and
Na+）and a little
protein with H+. And then
anionic exchange column uses OH- instead of anionic
impurities（CL-,SO42- and NO3-）and colored impurities. By the mixed bed, impurities
of bad taste and odor can be removed.
RSO3H+NaCl → RSO3Na+HCl
ROH+NaCl→ RCl+NaOH
When
the ion exchange resin is used for a long time, the capacity will decrease. Cationic
exchange resin can use hydrochloric acid and anionic exchange resin also uses
sodium hydroxide to regenerate and recover the ability of iron exchange.
During
the production of F55 fructose, the ion exchange system is divided into three
parts, including the glucose syrup ion exchange, isomeric
F42 syrup ion exchange and F55 syrup mixed-bed refinery.
While working, the syrup goes through the first pair of
cationic and anionic beds, which is called the first desalination. And then it
enters the second pair of beds, which is called the secondary desalination. The
regenerated resin will enter the section of secondary desalination firstly and
then goes into the first one in order to make full use of the resin and keep
syrup quality.
According
to the customers’ needs and process, it’s necessary to make the reasonable
design and precise 3D modeling to keep the desalination ability of ion exchange
column so as to meet the production needs. Adopting good resin can remove the
ion and pigment from the syrup effectively in order to keep the product quality
and appearance. At the same time, the fully automatic ion exchange control
system can be customized for the customers to realize the automatic control of
the feeding, switching, cleaning and regeneration of the ion exchange system.
The full chamber floating bed and normal fixed bed of ion exchange system can
be chosen according to the product plan.
Fructose Syrup Isomerization Column
Isomerization
column is a key equipment for the production of F42 and F55 fructose syrup.
Isomerization refers to the process whereby glucose converts into fructose
syrup with 42% of fructose content by the effect of immobilized isomerase. This
system adopts the imported immobilized isomerase which is characterized as high
activity, high strength and long service life. Myande adopts advanced
isomerization process design to ensure the smooth running of the temperature
and flow, which makes for the product stability and prolonging the service life
of immobilized isomerase. Combined with automatic control system, it can
realize the automatic control of the feeding, switching and cleaning. When the
activity starts decreasing, it’s necessary to adjust in time to ensure the
stability of product quality.
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| Fructose Syrup Isomerization Column |
Fructose Syrup Chromatographic Separation
Chromatographic
separation is a very effective way to separate the
mixture. The absorbability of diverse components is different on the stationary
phase surface. So it can realize the separation because all the components move
with mobile phase at different speeds when mobile phase flows.
Chromatographic
separation is mainly used in the production of F55 fructose. After the isomerization
section, a part of glucose of the fructose syrup is isomerized
as the fructose molecule. It’s called F42 fructose. By the evaporator, the
concentration of dry matter is reduced to 60% and then it enters the chromatographic
separation system.
The
purpose of chromatographic separation is to separate the F42 fructose syrup
into two parts:
1.
Recyclable extraction phase with high
content of fructose -- Used in the mixture of F55.
2.
Recyclable residual phase with high
content of glucose -- Return to the glucose ion separation section.
Calcium
resins are commonly used in the production of fructose. Different absorbability
of resins to glucose and fructose can elute different components. Fructose
molecule can combine with Ca2+ to be absorbed by resin ion, which will be the component of
the longest residence time. In addition, due to particularity of internal
structure, glucose cannot combine with Ca2+. So glucose accounts for a minimum
proportion of all the absorbed components. During the elution, speed of glucose
molecule is slower between them. So they can be separated.
Myande
chromatographic separation system adopts advanced simulated moving bed
technology to realize the continuous separation operation. Because of the
advanced process design, it will carry out the degassing of syrup and
desalinated water before the separation of syrup in order to reduce the damage
to chromatographic resin and prolong the service life. Using the imported
separation resin can ensure separation effect and service life. Finally, the
automatic control enables the staff to be more convenient and quick to adjust
the working status of the chromatographic separation system.
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