Milton Roy pumps in Critical TEAL Applications

Trimethylaluminum, also known as TEAL in the petrochemical industry, catalyzes olefin monomers or alkenes polymerization. This organoaluminum compound acts as a cocatalyst in Ziegler-Natta polymerization to produce polyethylene and other polyolefins. TEAL is crucial in the production of the following:

  • Polypropylene (PE)
  • Low and high-density polyethylene (LDPE & HDPE)
  • Linear low-density polyethylene (LLDPE)

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Due to its high reactivity and volatility, TEAL applications demand very safe and accurate dosing. It is pyrophoric, meaning it causes spontaneous ignition when it comes in contact with air and water. For this reason, Milton Roy dosing pumps, with their specific zero leak design can handle highly reactive and corrosive substances and hence play an important role in critical TEAL applications.

Milton Roy is an industry-leading producer of chemical dosing pumps and a major supplier of the petrochemical industry worldwide. Let’s understand the TEAL applications and the role of Milton Roy pumps in these processes in detail.

 

What is the Use of TEAL?

Plastics Manufacturing

TEAL is highly reactive, which is why it's used as a catalyst for polymerization reactions in the petrochemical sector. It’s used to make various commonly used products, such as your regular plastic bags, plastic for toys and automotive parts, etc.

As a reducing agent

It’s also a reducing agent of choice for producing aluminum alkyls, ketones, and aldehydes.

Cleaning Fuels

It also removes sulfur through hydrodesulfurization (HDS) and other impurities in petroleum fractions while refining crude oil. TEAL and sulfur compounds in the petroleum fractions react to produce aluminum sulfide solids. These solids can be easily removed to give refined products, such as diesel and gasoline.

Choosing an Ideal Dosing Pump for TEAL Application

Since TEAL has a very low flashpoint, it combusts when it comes in contact with air and water. Therefore, this reactive nature demands careful handling and appropriate chemical dosing pumps.

When choosing TEAL pumping equipment, you must select a chemical dosing pump designed to:

  • Deal with reactive substances specifically.
  • Maintain the pressure of 500 pounds per square inch gauge (psig).
  • Dose-volume under 50 gallons per hour (gph).
  • Inject a specific amount of substance with an accuracy of +/- 1%.

To ensure the dosing pump can withstand dangerous chemicals and offer a long lifespan, it’s recommended to be built with:

  • 316 stainless liquid end
  • 316 LSS ball valves and valve seats
  • Polytetrafluoroethylene (PTFE) double diaphragm
  • Special double diaphragm (PTFE + POM) with DSD technology
  • Metallic double diaphragm (316L)
  • Leak detection system (local and remote)
  • Nitrogen flushing and purging system

The chemical dosing pump you choose must comply with the American Petroleum Institute (API) 675 standards for the polymerization process.

 

Milton Roy Metering Pumps for Teal Applications

Milton Roy dosing pumps built for the petrochemical industry are designed with highly reactive and corrosive materials like TEAL in mind. Milton Roy pumps come with essential features for TEAL applications, such as:

 

  • Recommended construction as discussed above for durability
  • Leak detection technology
  • Pressure relief valves for consistent pressure control

Here are the two most popular Milton Roy pumps suitable for critical TEAL applications in polymerization reactors, refining processes, and chemical synthesis:

 

  1. PRIMEROYAL Series Pumps
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    PRIMEROYAL metering pumps provide extremely precise dosing control with a steady-state accuracy of +/-1% and a nominal flow rate range of 10 to 100%. This series is particularly suited to injecting many different corrosive and reactive fluids, such as TEAL and sulfuric acid, and is particularly useful in the petrochemical industry.

  2. MILROYAL Series Pumps
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    The MILROYAL® series metering pumps are the most reliable, industrial-duty metering pumps for critical processes in industries such as oil and gas, chemical, and petrochemical processing. These pumps offer leak-free performance at pressures up to 1380 bar. Few models of Milroyal are Dynamic Stiffness Diaphragm (DSD) Technology enabled for consistent performance even at lower injection rates.

 

Special Features of Milton Roy Pumps

  • Leak-resistant polytetrafluoroethylene (PTFE) double diaphragm with 20,000 hours+ service life
  • Special double diaphragm (PTFE + POM) with DSD technology
  • Metallic double diaphragm (316L)
  • Liquid end body in 316L SS
  • Leak detection system (local and remote)
  • Nitrogen flushing and purging system
  • Compliant with API 675 standards
  • Minimal weight and low footprint for power and cost-saving
  • Vertical and horizontal configurations are available
  • Modular and robust design for longer life

 

Pumping TEAL requires utmost care, safety, and accuracy. This ensures that manufacturing occurs according to the proper recipe, minimizing waste and controlling costs. Look for a dosing pump manufacturer with a good reputation and knowledge of TEAL metering applications. Milton Roy is a leading supplier of chemical dosing pumps in the petrochemical industry.

Milton Roy pumps from the PRIMEROYAL and MILROYAL series come with advanced features and robust safety measures to meet the exact requirements of TEAL applications while offering operational excellence. Contact us today for personalized assistance in choosing the right pumping equipment that meets your needs.