If you check the ingredient labels on your shampoo, body wash, or laundry detergent, chances are you will see “fatty alcohol” listed. These everyday products, along with lubricants and plastic additives, rely heavily on fatty alcohols. The global market for fatty alcohols is substantial and growing steadily. Two main forces are driving this growth: rising consumer preference for natural and sustainable personal care products, and increasingly strong policy support for renewable chemicals and low-carbon fuels across many countries.

The production of fatty alcohols depends on a critical step: catalytic hydrogenation. Converting natural oils or waste oils into fatty alcohols requires catalysts to break and hydrogenate long-chain fatty acid molecules. The performance of these catalysts directly determines product purity, yield, and production costs.

A Growing Market for Hydrogenation Catalysts

The market for oil and fat hydrogenation catalysts has grown into a significant segment in its own right, and it continues to expand. Demand for efficient hydrogenation catalysts is rising across the board—from traditional applications like edible oil hardening and fatty alcohol production to emerging areas like renewable diesel and sustainable aviation fuel.

Behind this growth is the industry's constant pursuit of better catalyst performance: higher conversion rates, better selectivity, longer service life, and lower costs. In this competitive landscape, nickel-based catalysts are emerging as a clear frontrunner.

Why Nickel?

For years, the catalyst selection for oil and fat hydrogenation presented a dilemma. Precious metals offer high activity and good selectivity, but they come at a high cost. Conventional non‑noble metal catalysts are cheaper, but their activity and stability often leave much to be desired.

Nickel sits right in the sweet spot.

It is abundant and inexpensive—an order of magnitude cheaper than precious metals. At the same time, nickel offers excellent hydrogenation activity, efficiently breaking carbon‑oxygen bonds and saturating carbon‑carbon double bonds in fatty acid molecules. More importantly, through careful catalyst design—choosing the right support, introducing a second metal to form alloys or bimetallic systems, and tuning the microstructure—nickel-based catalysts can now achieve selectivity and stability that rival or even surpass some precious metal systems.

This is exactly why nickel‑based catalysts are gaining increasingly widespread adoption in oil and fat hydrogenation.

From Food Processing to Green Aviation Fuel

The application of nickel‑based catalysts in oil and fat hydrogenation is undergoing a major transformation, expanding from traditional uses to exciting new frontiers.

Traditional applications: Food and personal care

The most classic application is the hydrogenation of edible oils. Raney nickel has served this industry for decades. By hydrogenating unsaturated fatty acids in vegetable oils, liquid oils are converted into semi‑solid or solid fats—the margarine and shortening we know today. The same principle applies to fatty alcohol production: oils are first hydrolyzed into fatty acids, then hydrogenated over nickel catalysts to produce high‑purity fatty alcohols for the personal care and detergent industries.

Emerging applications: Renewable fuels

This is the fastest‑growing area for nickel‑based catalysts. Waste cooking oils, non‑edible vegetable oils, and even insect oils can be converted through hydrodeoxygenation into “green diesel”—a renewable fuel that is chemically nearly identical to petroleum‑based diesel.

Recent studies have confirmed the significant potential of nickel‑based catalysts in this direction. With rational catalyst design, nickel‑based systems can efficiently convert waste oils into jet fuel and diesel fractions under relatively mild conditions. Even more exciting is the development of hydrogen‑free routes that use hydrogen‑donor solvents to supply hydrogen in situ during the reaction. This means the technical pathway for turning waste oils into high‑value fuels is becoming increasingly practical.

In China, this trend is equally evident. Breakthroughs in the selective production of natural fatty alcohols from bio‑oils have achieved performance comparable to international advanced levels. These advances could help China break its long‑standing dependence on imported high‑end fatty alcohols, providing critical support for a self‑reliant fine chemical supply chain.

Frontiers: What Challenges Are Nickel Catalysts Addressing?

Despite their promise, nickel‑based catalysts still face several challenges in oil and fat hydrogenation—and these are precisely the areas where research is most active.

Active site accessibility is a core issue. Ensuring that more nickel atoms are exposed to reactants, and preventing nickel particles from sintering at high temperatures, directly affects catalyst activity and lifetime. Researchers are addressing this through novel support designs and bimetallic synergy.

Catalyst stability and regeneration are another practical concern. Catalysts can deactivate over time due to coking, poisoning by impurities, or loss of active components. Extending catalyst service life and developing cost‑effective regeneration methods are key industrial challenges.

From hydrogen‑dependent to self‑supplying hydrogen represents a more frontier direction. Conventional hydrogenation requires an external supply of high‑pressure hydrogen. A newer approach uses hydrogen‑donor solvents as in‑situ hydrogen sources, enabling fatty acid conversion without external hydrogen. If successful, this could drastically reduce energy consumption and capital investment in hydrogenation processes.

The Next Step for the Industry

The oil and fat hydrogenation catalyst industry is at a critical turning point.

Demand is shifting—from fatty alcohols and hardened oils to renewable diesel and sustainable aviation fuel. Feedstocks are diversifying—from refined vegetable oils to waste oils and biomass‑derived oils. Process technologies are evolving—from traditional high‑temperature, high‑pressure operations to milder, more efficient routes.

In this transformation, nickel‑based catalysts, with their cost advantages, resource availability, and continuously improving performance, are becoming the essential bridge connecting “waste oils” to “green chemicals.” Whether it's the fatty alcohols in your shampoo bottle or the sustainable aviation fuel in an airplane's tank, this seemingly ordinary but critically important catalyst system is quietly powering the change.