By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's greatest market show in Las Vegas luxury jets are drawing buyers with their streamlined shapes, plush cabins - and progressively, their usage of alternative fuels.

Fuel producers and jetmakers are eager to display unique forms of air travel fuel deemed less harmful to the climate, from utilized cooking oil to the noticeably less attractive meat waste.

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

Their hope is that embracing eco-friendly fuel to suppress emissions could make organization jets more appealing to environmentally conscious purchasers - especially corporations facing concerns over sustainability from investors or green project groups.

The schedule of less polluting private jets might likewise spare the abundant and famous the unfavorable promotion experienced by Britain's Prince Harry and his better half Meghan over a recent personal jet journey to southern France.

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

The most recent waste-based fuels consist of "fats, grease and oils that are by-products of the food market," said Bryan Sherbacow, primary business officer of Boston-based biofuel manufacturer World Energy, which produces fuel from meat waste used by Gulfstream.

"All of our item is inedible."

Some of the other 79 airplane on display screen are anticipated to be powered by 150,000 gallons of other renewable fuel blends expected to be pumped at the show.

FLIGHT SHAMING

Private jets account for less than 0.1% of overall yearly carbon emissions worldwide, however can release, typically, up to 20 times more carbon emissions per traveler mile than jetliners, according to the London-based personal charter firm Victor.

Prince Harry has actually defended his periodic usage of personal jets to guarantee his family's security, and has actually stated that on the unusual celebrations he does not fly commercially he offsets his emissions.

But planemakers state incidents such as the furore over his travel plan have included fresh challenges for an industry already making every effort to validate its contribution to cutting corporate costs.

"Incidents of flight shaming involving the usage of personal jets are regrettable when you consider that our industry has provided fuel efficiency improvements of 40% over the past 40 years," stated 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 data, billionaires only have a 19% organization jet ownership rate.

But even an image transformation - with jets sporting stickers like "this airplane flies on eco-friendly fuels" and organisers adding alternative fuel pumps for going to aircrafts - is unlikely to please all critics at the Oct 22-24 luxury jet event.

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

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

Demand from business jet operators for renewable fuels now far surpasses supply and their interest might drive future production, Sherbacow said.

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

Corporate charter companies and experts are likewise seeing more interest from customers who wish to buy carbon credits to balance out emissions from their .

Brian Proctor, CEO of Mente Group, a U.S. consultancy, stated emissions played a role in a corporate jet usage study his business recently finished for a Fortune 500 company.

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