By Allison Lampert

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

Fuel producers and jetmakers are eager to showcase novel kinds of aviation fuel considered less harmful to the environment, from utilized cooking oil to the noticeably less glamorous meat waste.

Business jet operators, like airlines, have actually acquiesced environmental pressure on air travel and devoted to cutting in half carbon emissions by 2050 compared to 2005.

Their hope is that adopting sustainable fuel to curb emissions could make service jets more attractive to ecologically conscious purchasers - specifically corporations facing concerns over sustainability from investors or green project groups.

The schedule of less polluting private jets could also spare the rich and well-known the negative publicity experienced by Britain's Prince Harry and his spouse Meghan over a current private jet trip to southern France.

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

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

"All of our item is inedible."

A few of the other 79 airplane on display screen are anticipated to be powered by 150,000 gallons of other sustainable fuel mixes expected to be pumped at the program.

FLIGHT SHAMING

Private jets represent less than 0.1% of total yearly carbon emissions internationally, however can produce, typically, as much as 20 times more carbon emissions per traveler mile than jetliners, according to the London-based personal charter company Victor.

Prince Harry has actually safeguarded his occasional usage of personal jets to ensure his family's safety, and has actually said that on the unusual occasions he does not fly commercially he offsets his emissions.

But planemakers state incidents such as the furore over his schedule have included fresh difficulties for a market currently making every effort to validate its contribution to cutting business costs.

"Incidents of flight shaming involving making use of private jets are regrettable when you think about that our market has actually provided fuel effectiveness enhancements of 40% over the past 40 years," said Bombardier Aviation President David Coleal.

Bombardier thinks increased sustainable fuel use will assist the market make inroads with corporations and wealthy purchasers. According to market information, billionaires only have a 19% organization jet rate.

But even an image remodeling - with jets sporting sticker labels like "this aircraft flies on renewable fuels" and organisers including alternative fuel pumps for visiting airplanes - is unlikely to please all critics at the Oct 22-24 luxury jet event.

Environmentalists and some experts remain hesitant that biojetfuels, generally combined 50-50 with kerosene, will make a considerable influence on public perceptions about high-end travel.

"No quantity of Jatropha or Brazil-nut fuel can make organization jets look eco-friendly," stated aviation analyst Richard Aboulafia.

Demand from company jet operators for sustainable fuels now far goes beyond supply and their interest might drive future production, Sherbacow stated.

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

Corporate charter companies and experts are likewise seeing more interest from clients who wish to purchase carbon credits to offset emissions from their flights.

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

"At the end of the day, I believe that cost, expense per hour, range, speed and performance, that's still the (sales) driver. But I think people are ending up being more conscious of the sustainability of operations and how it affects the world." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)