By Allison Lampert

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

Fuel producers and jetmakers are keen to showcase novel types of aviation fuel deemed less damaging to the climate, from used cooking oil to the distinctly less glamorous meat waste.

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

Their hope is that embracing sustainable fuel to suppress emissions could make business jets more appealing to ecologically conscious buyers - specifically corporations dealing with concerns over sustainability from investors or green project 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 partner Meghan over a current personal jet journey to southern France.

Five Gulfstream jets on 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," said Bryan Sherbacow, chief commercial officer of Boston-based biofuel manufacturer World Energy, which produces fuel from meat waste used by Gulfstream.

"All of our product is inedible."

Some 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 represent less than 0.1% of overall annual carbon emissions internationally, but can emit, usually, up to 20 times more carbon emissions per passenger mile than jetliners, according to the London-based private charter company Victor.

Prince Harry has actually protected his occasional usage of personal jets to guarantee his family's safety, and has stated that on the uncommon celebrations he does not fly commercially he offsets his emissions.

But planemakers say events such as the furore over his schedule have actually included fresh difficulties for a market currently aiming to validate its contribution to cutting corporate costs.

"Incidents of flight shaming involving the use of personal jets are unfortunate when you think about that our market has actually delivered fuel effectiveness improvements of 40% over the past 40 years," stated Bombardier Aviation President David Coleal.

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

But even an image remodeling - with jets sporting stickers like "this aircraft flies on eco-friendly fuels" and organisers including alternative fuel pumps for visiting airplanes - is not likely to satisfy all critics at the Oct 22-24 luxury jet event.

Environmentalists and some analysts remain doubtful that biojetfuels, generally blended 50-50 with kerosene, will make a considerable impact on public understandings about .

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

Demand from company jet operators for renewable 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 expand production approximately 150 million gallons by 2022.

Corporate charter business and experts are also seeing more interest from clients 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 business jet utilization research study his company recently completed for a Fortune 500 business.

"At the end of the day, I think that cost, expense per hour, range, speed and performance, that's still the (sales) motorist. But I believe individuals are becoming more mindful of the sustainability of operations and how it affects the planet." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)