By Allison Lampert

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

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

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

Their hope is that adopting renewable fuel to suppress emissions could make service jets more attractive to environmentally mindful purchasers - especially corporations facing questions over sustainability from investors or green campaign groups.

The schedule of less contaminating private jets could also spare the abundant and popular the negative publicity experienced by Britain's Prince Harry and his wife Meghan over a current personal jet journey to southern France.

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

The most recent waste-based fuels include "fats, grease and oils that are byproducts of the food industry," stated Bryan Sherbacow, chief business 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 airplane on display screen are expected to be powered by 150,000 gallons of other sustainable fuel blends expected to be pumped at the show.

FLIGHT SHAMING

Private jets represent less than 0.1% of total yearly carbon emissions internationally, but can emit, on average, as much as 20 times more carbon emissions per traveler mile than jetliners, according to the London-based private charter firm Victor.

Prince Harry has actually defended his occasional use of personal jets to guarantee his household's security, and has said that on the uncommon celebrations he does not fly commercially he offsets his emissions.

But planemakers say events such as the furore over his travel plan have actually included fresh challenges for a market already striving to validate its contribution to cutting corporate expenses.

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

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

But even an image transformation - with jets sporting sticker labels like "this aircraft flies on sustainable fuels" and organisers including pumps for going to aircrafts - is unlikely to satisfy all critics at the Oct 22-24 luxury jet occasion.

Environmentalists and some experts remain hesitant that biojetfuels, generally mixed 50-50 with kerosene, will make a considerable impact on public understandings about luxury travel.

"No amount of Jatropha or Brazil-nut fuel can make service jets look eco-friendly," said air travel analyst Richard Aboulafia.

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

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 likewise seeing more interest from customers who want to purchase carbon credits to balance out 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 business just recently completed for a Fortune 500 business.

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