By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's greatest industry program in Las Vegas high-end jets are drawing buyers with their sleek shapes, luxurious cabins - and significantly, their usage of alternative fuels.

Fuel producers and jetmakers are eager to display novel forms of aviation fuel considered less hazardous to the environment, from used cooking oil to the definitely less attractive meat waste.

Business jet operators, like airline companies, have actually acquiesced ecological pressure on air travel and dedicated to cutting in half carbon emissions by 2050 compared with 2005.

Their hope is that adopting eco-friendly fuel to curb emissions might make company jets more appealing to ecologically conscious buyers - specifically corporations dealing with concerns over sustainability from shareholders or green campaign groups.

The accessibility of less contaminating private jets might likewise spare the abundant and well-known the unfavorable promotion experienced by Britain's Prince Harry and his wife Meghan over a recent private jet journey to southern France.

Five Gulfstream jets on display screen in Las Vegas are using California-produced fuel from inedible beef tallow.

The latest waste-based fuels consist of "fats, grease and oils that are byproducts of the food industry," stated Bryan Sherbacow, primary business officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste utilized by Gulfstream.

"All of our product is inedible."

Some of the other 79 aircraft on display are anticipated to be powered by 150,000 gallons of other sustainable fuel blends anticipated to be pumped at the program.

FLIGHT SHAMING

Private jets account for less than 0.1% of overall annual carbon emissions worldwide, however can produce, on average, approximately 20 times more carbon emissions per passenger mile than jetliners, according to the London-based personal charter firm Victor.

Prince Harry has actually protected his occasional usage of personal jets to ensure his household's security, and has stated that on the unusual events he does not fly commercially he offsets his emissions.

But planemakers say incidents such as the furore over his itinerary have included fresh challenges for a market already aiming to validate its contribution to cutting business expenses.

"Incidents of flight shaming including using private jets are regrettable when you consider that our market has actually delivered fuel effectiveness enhancements of 40% over the past 40 years," stated Bombardier Aviation President David Coleal.

Bombardier believes increased sustainable fuel use will assist the market make inroads with corporations and rich purchasers. According to market data, billionaires just have a 19% service jet ownership rate.

But even an image makeover - with jets sporting stickers like "this aircraft flies on eco-friendly fuels" and organisers including alternative fuel pumps for checking out planes - is unlikely to please all critics at the Oct 22-24 luxury jet occasion.

Environmentalists and some experts stay skeptical that biojetfuels, normally combined 50-50 with kerosene, will make a considerable influence on public perceptions about luxury travel.

"No amount of jatropha curcas or Brazil-nut fuel can make business jets look eco-friendly," stated aviation expert Richard Aboulafia.

Demand from organization jet operators for renewable fuels now far exceeds supply and their interest could drive future production, Sherbacow said.

World Energy, which produces 40 million gallons of biofuel at its California plant, could expand production approximately 150 million gallons by 2022.

Corporate charter business and consultants are also seeing more interest from who want to purchase carbon credits to balance out emissions from their flights.

Brian Proctor, CEO of Mente Group, a U.S. consultancy, said emissions contributed in a corporate jet utilization research study his company recently finished for a Fortune 500 company.

"At the end of the day, I believe that rate, expense per hour, variety, speed and efficiency, that's still the (sales) chauffeur. But I believe individuals are ending up being more aware of the sustainability of operations and how it affects the planet." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)