By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's biggest industry program in Las Vegas luxury jets are luring purchasers with their streamlined shapes, plush cabins - and increasingly, their usage of alternative fuels.

Fuel manufacturers and jetmakers are keen to display unique kinds of air travel fuel deemed less hazardous to the climate, from used cooking oil to the distinctly less glamorous meat waste.

Business jet operators, like airlines, have actually bowed to ecological pressure on aviation and dedicated to halving carbon emissions by 2050 compared to 2005.

Their hope is that adopting sustainable fuel to suppress emissions could make organization jets more attractive to ecologically conscious buyers - particularly corporations dealing with concerns over sustainability from shareholders or green campaign groups.

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

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

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

"All of our item is inedible."

A few of the other 79 aircraft on display screen are anticipated to be powered by 150,000 gallons of other renewable fuel blends anticipated to be pumped at the program.

FLIGHT SHAMING

Private jets account for less than 0.1% of total yearly carbon emissions internationally, however can emit, usually, approximately 20 times more carbon emissions per traveler mile than jetliners, according to the London-based private charter company Victor.

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

But planemakers say incidents such as the furore over his travel plan have added fresh difficulties for a market currently making every effort to validate its contribution to cutting business costs.

"Incidents of flight shaming including the use of private jets are unfortunate when you consider that our market has delivered fuel effectiveness improvements of 40% over the previous 40 years," said Bombardier Aviation President David Coleal.

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

But even an image transformation - with jets sporting sticker labels like "this airplane flies on eco-friendly fuels" and alternative fuel pumps for visiting planes - is unlikely to satisfy all critics at the Oct 22-24 luxury jet occasion.

Environmentalists and some analysts stay skeptical that biojetfuels, generally combined 50-50 with kerosene, will make a significant impact on public perceptions about luxury travel.

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

Demand from service 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, could broaden production approximately 150 million gallons by 2022.

Corporate charter companies and consultants are likewise seeing more interest from customers who wish to buy carbon credits to offset emissions from their flights.

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

"At the end of the day, I believe that price, cost per hour, variety, speed and efficiency, that's still the (sales) chauffeur. But I believe people are becoming more mindful of the sustainability of operations and how it impacts the world." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)