About Me — Why I Write for Mechanical & Electrical Engineers in Chemical Plants
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Nice to Meet You
Hello, I’m Neoneeet.
The word “NEET” became too famous in Japan — almost impossible to register as a username. So I simply added one extra “E.” That was the very practical beginning.
After more than ten years of using the name, I upgraded it with “NEO” and now often go by NEONEEET.
There is nothing particularly strategic about the name. But the work behind it is serious.
For Mechanical & Electrical Engineers in Chemical Plants
This blog is written for young mechanical and electrical engineers working in chemical plants — or students who hope to enter this field.
Choosing a chemical company as a mechanical engineer is not a common path. It is a niche choice. Still, I believed there was demand and joined the industry. At the time I graduated, finding a job was not especially difficult.
Mechanical engineers in Japan have many options. Manufacturing companies are everywhere.
Yet I chose a chemical company.
There Is Too Little Information
Information about mechanical and electrical engineering in chemical plants (production engineering / plant engineering) is surprisingly limited.
Many companies still rely on old paper documents. Even when you search online, practical explanations are hard to find.
Most materials — whether paper or digital — only present conclusions.
Very few explain the “why.”
For years, people have emphasized the importance of know-why instead of just know-how.
But in reality, explanations of the reasoning behind design and maintenance decisions are scarce.
It took me nearly ten years to fully understand the overall structure of the workplace and what was truly required.
That kind of struggle should not be necessary.
Younger engineers should not have to spend a decade piecing things together.
That is why I write this blog.
Background
In high school, I was better at physics than chemistry. That was the simple reason I chose mechanical engineering in university.
Mathematics was actually my strongest subject, but I was not confident I could succeed in a pure mathematics field. So I entered an engineering faculty and completed graduate school.
After that, for reasons I still cannot fully explain, I joined a chemical company.
Mechanical engineering offers broad career options in Japan, yet I chose a relatively uncommon path. I have not had major regrets — but before I realized it, I had been working at the same company for over 20 years.
Since my late 30s, I have often wondered whether this was the right long-term choice.
Even so, I continue.
Experience & Background
End‑to‑end experience as a user‑side engineer, covering design → production → maintenance → corporate planning
- Over 20 years in a major chemical manufacturing company
- 10+ years as a mechanical engineer (plant modification & mid‑scale plant construction)
- Experience as a production supervisor, managing operations, safety, and quality
- Overseas assignment: led plant startup, trial production, and commercial operation
- 5 years in maintenance & asset management (equipment diagnostics, renewal planning, troubleshooting)
- 3 years in corporate planning (raw‑material cost reduction, mid‑term planning, production optimization)
→ A rare “user‑side engineer” with end‑to‑end experience across design, operations, maintenance, and planning.
• Equipment handled: Pumps, heat exchangers, tanks, reactors, chillers, centrifuges, dryers, cooling towers — essentially all major equipment used in batch chemical plants
• Processes experienced: Batch reactions, mixing, separation, distillation, filtration, drying — covering the full range of batch‑process operations
Certifications
I have worked seriously in the chemical industry, and one visible result of that effort is professional certification.
Major certifications include:
- Hazardous Materials Handler
- Fire Protection Engineer
- High-Pressure Gas Production Safety Supervisor
- Pollution Control Manager
- Certified Energy Manager
- Machinery Maintenance Technician
- Second-Class Boiler Engineer
- Scaffolding Work Supervisor
- Oxygen Deficiency & Hydrogen Sulfide Work Supervisor
- First-Class Health Supervisor
- Bookkeeping Level 2 (Japan Chamber of Commerce and Industry)
These qualifications reflect practical experience in plant operations, safety, utilities, and maintenance.
Related Information
This blog also summarizes lessons learned from past projects, maintenance cases, and plant engineering experience.
My goal is not to provide textbook theory.
It is to clarify the reasoning behind real engineering decisions in chemical plants.
Summary
Mechanical and electrical engineering in chemical plants is a niche field with limited accessible information.
I spent nearly a decade understanding what could have been explained more clearly from the beginning.
This blog exists to reduce that gap — especially for young engineers who are just starting their careers.
Follow me
X：https://x.com/chemi_machine
note：https://note.com/deep_rhino7829
Linkedln：https://www.linkedin.com/in/neeet-neo-529a10247/
知乎：https://www.zhihu.com/people/44-42-19-92
