SolvTrue™ S-Series Solvent Recyclers: A Smarter Way to Recover and Reuse Industrial Solvents
Solvents are essential to countless industrial processes. From cleaning precision components and removing coatings to printing, painting, degreasing and additive manufacturing, they help facilities complete everyday production tasks efficiently.
The challenge begins after those solvents have been used.
But used solvent does not always have to reach the end of its useful life after a single process.
The SolvTrue™ S-Series Solvent Recyclers from CBG Biotech use simple distillation to separate recoverable solvents from contaminants, allowing suitable solvent to be reused in industrial processes. Depending on the application and waste stream, S-Series systems can recover up to 95% of industrial solvents.
For manufacturers looking for a practical way to reduce solvent waste while getting more value from the materials they already purchase, on-site solvent recycling can offer an alternative to traditional disposal.
What Is an Industrial Solvent Recycler?
An industrial solvent recycler is a system designed to recover usable solvent from contaminated solvent waste.
These systems may also be called solvent stills, solvent reclaimers, solvent cyclers or distillation boilers.
Although terminology varies, the basic objective is the same: separate usable solvent from contaminants so the recovered material can potentially be returned to an industrial process.
A solvent may become contaminated with substances such as:
- Oils and greases
- Paints and coatings
- Resins
- Inks
- Particulates
- Manufacturing residues
- Other nonvolatile materials
Instead of disposing of the entire mixture, distillation separates the volatile solvent from contaminants that do not vaporize under the same operating conditions.
The recovered vapor is then condensed back into liquid solvent.
For suitable waste streams, this creates an opportunity to reuse a material that might otherwise have been discarded.
How Simple Distillation Recovers Industrial Solvents
The SolvTrue™ S-Series uses simple distillation, a well-established method for recovering solvents from contaminated waste streams.
The process can be understood through four basic stages.
1. Contaminated Solvent Enters the Recycler
Used solvent from an industrial process is collected and transferred into the recycling system.
The composition of this waste stream matters. Solvent type, boiling point, contaminants and concentration all influence the recovery process.
2. The Waste Solvent Is Heated
The system heats the contaminated solvent under controlled conditions.
As the solvent reaches its boiling range, it changes from liquid into vapor. Many oils, solids, resins and other contaminants remain behind because they do not vaporize under the same conditions.
3. Solvent Vapor Is Condensed
The vaporized solvent moves away from the concentrated contaminants and enters the cooling portion of the system.
As it cools, the vapor condenses back into liquid form.
4. Recovered Solvent Is Collected
The distilled solvent can then be collected and evaluated for reuse.
Instead of disposing of the entire original waste volume, the facility primarily manages the concentrated residue remaining after recoverable solvent has been separated.
This straightforward process can fundamentally change how a facility manages its solvent supply.
Why Single-Solvent Waste Streams Are Well Suited to Simple Distillation
Not every solvent waste stream requires a complex separation process.
Many industrial applications use one primary solvent that becomes contaminated with nonvolatile materials during normal operations.
For example, acetone used in a manufacturing process may accumulate resins or production residue. IPA used for parts cleaning may collect oils and other contaminants.
In situations like these, the primary objective is not necessarily separating several volatile solvents from each other. It is separating the main solvent from contamination.
That is where simple distillation can be particularly effective.
The SolvTrue™ S-Series is designed for single-solvent and select liquid and solid waste streams, making it suitable for a wide variety of industrial solvent recovery applications.
What Solvents Can the SolvTrue™ S-Series Recover?
Industrial facilities use many different solvents, and the appropriate recovery configuration depends on the characteristics of the solvent and waste stream.
CBG Biotech identifies the S-Series for processing a range of commonly used industrial solvents, including:
- Acetone
- Isopropyl alcohol (IPA)
- Methyl ethyl ketone (MEK)
- Toluene
- Methanol
- Ethanol
- Paint thinners
- Mineral spirits
- Select aromatic solvents
- Select engineered solvents
Different solvents can require different operating conditions or system configurations, which is why solvent compatibility should be evaluated before choosing a recycler.
Industrial Applications for S-Series Solvent Recycling
One advantage of simple distillation is its usefulness across many industries and production processes.
Precision Parts Cleaning
Industrial parts cleaning can consume substantial amounts of solvent, particularly where cleanliness standards require frequent solvent replacement.
Recovering suitable cleaning solvent can reduce the amount of fresh material required while decreasing the volume of contaminated solvent sent for disposal.
Degreasing and Vapor Degreasing
Solvents used to remove oils, grease and manufacturing residues can gradually accumulate contamination.
When the solvent itself remains recoverable, distillation can separate it from much of this unwanted material.
Painting and Coating
Painting and coating operations may generate solvent waste during cleaning, flushing and other production activities.
Solvent recovery gives facilities an opportunity to reclaim usable material from appropriate waste streams rather than treating all of it as disposable.
Printing
Printing operations can generate solvent waste containing inks, pigments and other residues.
Simple distillation can separate recoverable solvent from many of these contaminants.
Composites and Fiberglass
Composite manufacturing can involve solvents used with resins and other process materials. These solvents may become contaminated during production but still contain recoverable material.
Additive Manufacturing and 3D Printing
Solvents such as IPA may be used during SLA and other additive manufacturing processes to clean printed parts and equipment.
As the solvent accumulates resin and other contamination, recovery may extend its useful life and reduce the amount of replacement solvent required.
Solvent Recycling for Different Waste Volumes
Industrial solvent use varies considerably from one operation to another.
A small production facility may generate only a few gallons of solvent waste at a time, while a large manufacturing operation may process much higher volumes across multiple shifts.
For that reason, solvent recycling equipment should be sized according to actual throughput requirements.
The SolvTrue™ S-Series includes systems covering multiple capacity levels.
For lower-volume applications, the MiniSolv™ Solvent Recycler has a 2-gallon capacity and is designed for solvents including IPA, acetone, ethanol, methanol and xylene.
The S700 provides a 7-gallon capacity for applications such as acetone recovery.
For increasing solvent volumes, CBG Biotech offers systems including the S1500, S3000 and S6000, providing progressively greater processing capacity.
This range allows companies to select a system based on how much solvent they actually generate rather than adopting a one-size-fits-all recovery approach.
What About High-Boiling-Point Solvents?
Some solvents require additional considerations because of their boiling characteristics.
CBG Biotech offers vacuum-assist options for solvents with relatively high boiling points. Applying a vacuum reduces the pressure inside the system, which lowers the temperature required for the solvent to boil.
This can make it possible to process solvents that would otherwise exceed the recycler's normal operating temperature.
CBG Biotech notes that, as a general rule, solvent or solvent blends with boiling points above approximately 150°C (300°F) require vacuum assist.
The SolvTrue™ S700V, for example, is designed with vacuum assist for higher-boiling industrial solvents such as mineral spirits, naphthas, thinners and D-limonene.
Matching the system configuration to the solvent's physical properties is therefore an important part of selecting a recycler.
Recovering Low-Boiling-Point Engineered Solvents
Some precision industrial processes present the opposite challenge.
Nonflammable, low-boiling-point engineered solvents may require tighter process control than traditional solvent stills can provide.
The SolvTrue™ S700C is designed for this type of application, using controlled simple distillation with vacuum-assisted operation.
Applications can include precision cleaning in industries such as electronics manufacturing, aerospace and medical device production.
Because engineered solvents can represent a significant material expense, recovering and reusing suitable solvent may be particularly valuable for facilities that rely on them regularly.
How On-Site Solvent Recycling Can Reduce Purchasing Costs
The financial impact of solvent use goes beyond the price of each drum or container.
When contaminated solvent is discarded, a facility loses the remaining value of the solvent itself and must purchase replacement material.
This creates a repeating expense.
On-site solvent recovery changes the process from:
Buy → Use → Dispose → Buy Again
to something closer to:
Buy → Use → Recover → Reuse
Fresh solvent may still be required to replace losses and maintain process quality, but recovering a portion of existing material can reduce overall purchasing requirements.
The potential savings depend on several factors, including solvent price, consumption, recovery rate, waste volume and disposal costs.
For facilities using significant quantities of solvent, those variables can make recovery worth evaluating from both an operational and financial perspective.
Reducing Industrial Solvent Waste
Purchasing costs are only one side of the equation.
Facilities may also pay to store, transport and dispose of contaminated solvents.
When usable solvent is separated from contaminants, the amount of waste requiring final disposal can be reduced.
Instead of sending an entire container of contaminated solvent off-site, a facility may primarily need to manage the concentrated residual waste left after distillation.
This can help decrease waste volumes and potentially reduce the frequency of waste pickups.
On-site solvent recycling may also help facilities manage their EPA hazardous waste generator status, depending on their operations and applicable regulatory requirements.
Supporting More Sustainable Manufacturing
Industrial sustainability does not always require changing the materials a company uses.
Sometimes it means getting more useful life from existing resources.
Solvent recycling is an example of this approach.
By recovering and reusing suitable solvent, companies can reduce the amount of new solvent entering their operations and decrease the volume of solvent waste leaving the facility.
That creates a more circular material flow and supports broader initiatives focused on waste reduction and resource efficiency.
Rather than treating solvent as a single-use consumable, facilities can begin treating it as a material that may remain useful through multiple process cycles.
Why Solvent Sample Testing Is Important
Knowing that a facility uses acetone, IPA or another recoverable solvent does not automatically determine which recycling system it needs.
The complete waste stream should be considered.
Important questions include:
- What solvent is being used?
- What contaminants enter the solvent?
- How concentrated is the waste stream?
- What is the solvent's boiling point?
- How much waste is generated?
- How frequently does the facility need to process it?
- What recovered-solvent quality is required?
CBG Biotech offers a sample testing program to help facilities evaluate their waste solvent and determine whether recovery is appropriate.
Testing a representative sample can provide valuable information before selecting equipment and help identify the right system configuration for the application.
Choosing the Right SolvTrue™ S-Series Solvent Recycler
Selecting a solvent recycler should begin with the process—not simply equipment capacity.
A facility should evaluate its solvent type, waste composition, throughput and intended reuse.
Lower-volume operations may benefit from a compact recycler, while facilities generating larger quantities may need higher-capacity equipment or continuous-feed capabilities.
High-boiling solvents may require vacuum assist, while specialized engineered solvents may need tighter process control.
Safety requirements also matter.
CBG Biotech's S-Series incorporates features such as microprocessor controls, automatic shutoff, safety interlocks and monitoring systems. Systems are designed for industrial operating environments, with configurations available according to application requirements.
The objective is to match the technology to the actual recovery challenge.
Getting More Value From Industrial Solvents
Industrial solvent management does not have to end with disposal.
For suitable single-solvent and select waste streams, simple distillation can recover valuable solvent that might otherwise be discarded along with contaminants.
The SolvTrue™ S-Series Solvent Recyclers provide multiple configurations and capacities for industrial facilities looking to bring solvent recovery on-site.
Whether a company uses acetone for manufacturing, IPA for additive manufacturing, solvents for precision cleaning or thinners in painting and coating operations, evaluating what happens to those solvents after use can uncover opportunities for greater efficiency.
The key is understanding the waste stream first.
By identifying solvent characteristics, contamination, processing volume and reuse requirements, facilities can determine whether on-site solvent recycling fits their operations—and which S-Series configuration provides the right approach.
Instead of repeatedly paying to replace and dispose of the same type of material, industrial facilities can begin viewing used solvent as a resource with the potential for another productive cycle.
Frequently Asked Questions
What is the SolvTrue™ S-Series?
The SolvTrue™ S-Series is CBG Biotech's range of simple-distillation solvent recyclers designed to recover reusable solvent from single-solvent and select industrial waste streams.
How does a SolvTrue™ S-Series solvent recycler work?
The system heats contaminated solvent so the recoverable solvent vaporizes while many nonvolatile contaminants remain behind. The solvent vapor is then cooled, condensed and collected as liquid for potential reuse.
What solvents can SolvTrue™ S-Series recyclers recover?
Depending on the system configuration, the S-Series can process solvents including acetone, IPA, MEK, toluene, methanol, ethanol, paint thinners, mineral spirits and select engineered solvents.
How much solvent can an S-Series system recover?
CBG Biotech states that its S-Series simple-distillation recyclers can recover up to 95% of industrial solvents, although actual recovery depends on the solvent, contamination and waste-stream characteristics.
What industries can use S-Series solvent recyclers?
Applications include precision parts cleaning, degreasing, additive manufacturing and 3D printing, painting and coating, printing, composites, aerospace, electronics manufacturing and other industrial processes that generate suitable solvent waste.
When is vacuum assist needed for solvent recycling?
Vacuum assist can be useful for solvents with relatively high boiling points because reducing pressure lowers the temperature required for distillation. CBG Biotech indicates that solvents or blends with boiling points above approximately 150°C (300°F) generally require vacuum assist.
How do I choose the right S-Series solvent recycler?
Consider the solvent type, boiling point, contaminants, amount of waste generated, required throughput and intended reuse of the recovered solvent. Sample testing can help determine which system and configuration best match the waste stream.
Comments
Post a Comment