By Allison Lampert

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

Fuel producers and jetmakers are eager to showcase novel types of air travel fuel considered less harmful to the environment, from utilized cooking oil to the distinctly less attractive meat waste.

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

Their hope is that adopting renewable fuel to curb emissions might make service jets more attractive to environmentally mindful purchasers - specifically corporations facing concerns over sustainability from shareholders or green campaign groups.

The availability of less polluting private jets might likewise spare the abundant and well-known the unfavorable publicity experienced by Britain’s Prince Harry and his wife Meghan over a recent personal jet journey to southern France.

Five Gulfstream jets on 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 industry,” said Bryan Sherbacow, primary commercial 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 aircraft on screen are expected 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 annual carbon emissions internationally, however can emit, on average, up to 20 times more carbon emissions per guest mile than jetliners, according to the London-based private charter company Victor.

Prince Harry has actually safeguarded his occasional use of private jets to ensure his household’s safety, and has said that on the rare events he does not fly commercially he offsets his emissions.

But planemakers say incidents such as the furore over his itinerary have actually included fresh obstacles for an industry already striving to justify its contribution to cutting corporate costs.

“Incidents of flight shaming including making use of private jets are regrettable when you consider that our industry has provided fuel efficiency enhancements of 40% over the previous 40 years,” stated Bombardier Aviation President David Coleal.

Bombardier believes increased sustainable fuel use will help the market make inroads with corporations and rich buyers. According to industry information, billionaires only have a 19% business 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 visiting planes - is not likely to satisfy all critics at the Oct 22-24 high-end jet event.

Environmentalists and some analysts remain doubtful that biojetfuels, usually blended 50-50 with kerosene, will make a significant influence on public understandings about luxury travel.

“No amount of Jatropha or Brazil-nut fuel can make company jets look eco-friendly,” stated aviation analyst Richard Aboulafia.

Demand from organization jet operators for eco-friendly fuels now far goes beyond supply and their interest could drive future production, Sherbacow stated.

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

Corporate charter business and specialists are also seeing more interest from clients who want 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 just recently finished for a Fortune 500 .

“At the end of the day, I think that cost, cost per hour, variety, speed and efficiency, that’s still the (sales) chauffeur. But I believe individuals are becoming more knowledgeable about the sustainability of operations and how it affects the world.” (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)