Drewgard

Test Your Knowledge

Drewgard Quiz:

Instructions: Choose the best answer for each question.

1. What is the primary focus of Drewgard products?

a) Water purification b) Corrosion inhibition c) Wastewater treatment d) Air pollution control

2. Which of the following industries does Drewgard NOT serve?

a) Industrial water treatment b) Oil and gas c) Agriculture d) Marine & Offshore

3. What is a key feature of Drewgard corrosion inhibitors?

a) Low cost b) Easy availability c) High efficiency d) All of the above

4. Which company developed the Drewgard brand?

a) Dow Chemical b) DuPont c) Ashland Chemical, Drew Division d) Shell

5. What is the main benefit of using Drewgard products in power generation?

a) Increased energy output b) Reduced fuel consumption c) Protection against corrosion in vital components d) Increased efficiency of cooling systems

Drewgard Exercise:

Scenario: You are working for a company that operates a large fleet of ships. You are tasked with choosing a corrosion inhibitor to protect the hulls and underwater structures of your ships from the corrosive effects of seawater.

Task:

1. Research: Based on the information provided about Drewgard, what specific product line would be most suitable for your needs?
2. Justification: Provide a justification for your choice, highlighting the key features of the chosen Drewgard product line that make it appropriate for marine applications.

Techniques

Chapter 1: Techniques

Drewgard: A Legacy of Corrosion Protection in Environmental & Water Treatment

This chapter delves into the specific techniques employed by Drewgard to combat corrosion in various applications.

Corrosion Inhibition Mechanisms:

Drewgard products utilize a variety of mechanisms to prevent corrosion, including:

• Passivation: This involves forming a protective layer on the metal surface, preventing further interaction with the corrosive environment. Drewgard inhibitors often contain compounds that react with the metal to create this protective layer.
• Cathodic Protection: This technique uses an external electrical current to counteract the corrosion process. Drewgard offers specialized products for cathodic protection systems, particularly in marine environments.
• Oxygen Scavenging: Oxygen is a major contributor to corrosion in many systems. Drewgard products can remove dissolved oxygen from water, reducing the potential for corrosion.
• Filming: Some Drewgard inhibitors form a thin film on the metal surface, acting as a physical barrier to prevent corrosion. These films can be organic or inorganic, depending on the application.
• Chemical Adsorption: Certain Drewgard inhibitors adsorb onto the metal surface, preventing corrosive agents from reaching the metal. This mechanism is particularly effective in reducing corrosion in high-temperature or acidic environments.

Specific Techniques for Different Industries:

• Industrial Water Treatment: Drewgard utilizes techniques like passivation and oxygen scavenging to protect boilers, cooling systems, and heat exchangers.
• Oil and Gas: Drewgard focuses on techniques like cathodic protection and filming to safeguard pipelines, drilling equipment, and production facilities.
• Marine & Offshore: Drewgard employs a combination of passivation, cathodic protection, and specialized coatings for corrosion control in harsh marine environments.
• Power Generation: Drewgard utilizes both chemical and electrochemical methods to protect turbines, condensers, and other critical components in power plants.

Key Points:

• Drewgard's success in corrosion protection stems from its understanding of different corrosion mechanisms and its ability to apply the most appropriate techniques for specific applications.
• The company's commitment to innovation ensures its products stay ahead of the curve in tackling emerging corrosion challenges.
• Drewgard's approach to corrosion inhibition is not just about preventing damage, but also about optimizing system performance and minimizing environmental impact.