1.Micro-bubble Generator Unit(MBU)
Product Overview:
Afloat gas is injected into reflux pressure flow in the form of micro-bubble, and then will be cut and sieved by micro-bubble
generator, which will produce oversaturated dissolved gas water with 5~10μm uniform micro-bubbles. The structure
of unit is compact, especially applicable to provide air floatation systems which are newly-built and need reconstruction with
micro-bubble dissolved gas water, and can greatly improve separating efficiency.
Structure diagram:
There are two kinds of micro-bubble generators: MBU-A(gas injection type) and MBU-B(aspirated type)
1)Basic flow diagram of MBU-A
(Applicable to 87~116psi floating gas source situation)
2)Basic flow diagram of MBU-B
(Applicable to air source without pressurized floating gas)
Technical Features:
1) Unique bubble refining and sieving process makes the bubble diameter small and uniform in dissolved gas water. Less
water (10% of system treating flow) flows back. Thus the equipment cost and system energy consumption are reduced;
2) Simple structure, less maintenance;
3) Modularized skid, compact structure, small footprint and volume.
Application Example:
CNOOC MZ FPSO Cyclone Flotation Device Reconstruction Project
2.Micro-bubble Rotating Flotation Unit (MRF)
Product Overview:
MRF uses micro-bubble generator to produce micro-bubble dissolved gas water, which adheres to oil droplets and
suspended solids and forms oil and gas polymer. As hydraulic pressure decreases and volume expands, oil and gas
polymer will come up to liquid level, form oil residue and then be discharged. The technology can be widely used in
the occasions that need to separate oil, suspended solids and water, conduct sewage floatation purification treatment,
and achieve standard discharge or recycling. Due to its small floor space, it is especially applicable to the places that
have high demand on space such as offshore platform or FPSO. The product has been successfully applied to treat
sewage containing polymer and oil.
Technical Features:
1)High oil-water separating efficiency and processing load: the surface loading can reach up to 60m3/m2.h. The oil
removal rate can be above 95% when the inlet oil concentration is high(above 500ppm);
2) Adopt micro-bubble to adhere to small particles, the adhesion effect is good and scum is stable, not easy to back-mixing;
3)Under the condition of the same outlet effect, it uses less flotation agent, and more than 1/3 agent of general flotation
can be saved;
4)No mechanical drive parts, energy saving and reliable, easy maintenance.
Application Example:
Sewage Containing Polymer/Oil Project of CNOOC SZ 36-1 Crude Oil Processing Terminal Factory
3.Micro-bubble Horizontal Flotation Unit(MHF)
Product Overview:
MHF uses micro-bubble generator to produce micro-bubble dissolved gas water, which adheres to oil droplets and
suspended solids, and forms oil and gas polymer. As hydraulic pressure decreases and volume expands, the oil and gas
polymer will come up to liquid level, form oil residue and then be discharged. The technology can be widely used in the
occasions of sewage floatation purification treatment, achieve standard discharge or recycling, especially for the occasions
where outlet water needs pump to be promoted, oily sewage with high content emulsified oil needs to be recycled oil.
Technical Features:
1) Prepare micro-bubbles by high efficiency cyclone cutting “oversaturated dissolved gas” technique;
2) Stable release technology: release micro-bubble dissolved gas water in the way of multipoint iso-baric and iso-flow;
3) Intensify mix flocculation, improve the agent efficiency;
4)Rectified and steady flow provide stable separating zone with well-proportioned water distribution and catchment;
5) Multistage floatation can be realized in one tank.
Application Example:
CNOOC KL3-2 CEP Oily Sewage Treatment Project
Comparison of floatation technology
No. |
Items |
Micro-bubble floatation |
Jet flow floatation |
Dissolved gas floatation |
Cavitation air floatation |
1 |
Size of bubbles |
Small and uniform |
Nonuniform |
Smaller, nonuniform |
Larger, nonuniform |
2 |
Reflux ratio |
<10% |
20%-50% |
20%-50% |
- |
3 |
Adhesion stability |
Most stable |
Most unstable |
Stable |
Unstable |
4 |
Scum stability |
Most stable |
Unstable |
Stable |
Stable |
5 |
Operation effect |
Best |
Worst |
Good |
Bad,suit for rough separation |
6 |
Energy consumption |
low |
Medium |
High |
Medium |
7 |
Operating cost |
Low |
High |
High |
Medium |
8 |
Installation |
Vertical /horizontal |
Horizontal |
Horizontal |
Horizontal |
9 |
Operating load of unit area |
High |
Medium |
Low |
Low |
10 |
Floor space |
Small |
Medium |
Large |
Large |
- Metering Module
- Wellhead Monitoring Skid
- Single Well Metering Ski
- Metering Skid for Crude
- Metering Skid for Wet Ga
- Onshore and Offshore Mov
- Metering Skid
- Separation Module
- Gas-Liquid Cylindrical
- Synergistic Three-Phase
- Slug Flow Control System
- Vane Type Separator
- Filter
- GLCC Desander System
- Water Treatment Module
- Micro-Bubble Flotation T
- Hyper-Hydro Cyclone
- Multiphase Pump
- Mobile Electrocoagulatio
- Sulfur Recovery Technolo
- Technology Introduction
- Technology Advantage
- Process Introduction
- Chemical Agents
- Application Cases
- Others
- Chemical Injection Skid
- uel Gas Pressure Regulat