Why is biodiesel unethical?
The legal requirement to put biofuels in petrol and diesel sold in the UK and Europe is unethical because their production violates human rights and damages the environment, a major new inquiry has concluded.
How do you make biodiesel from animal fat?
To make biodiesel, fats in the vegetable oil are reacted with a form of alcohol—usually methanol—to form the biodiesel molecule. For renewable diesel made from animal fat, fats are hydrogenated by reacting the tallow with hydrogen under high pressure at high temperature.
Can biodiesel be made from animal fat?
Biodiesel is mostly produced from vegetable oils and animal fats and has been the object of research and development in recent decades. In fact, oil and fat materials used as raw materials are of high relevance because they are estimated to represent 60–80% of the total cost of biodiesel production .
What are some ethical considerations about biofuels?
Biofuels development should not be at the expense of people’s essential human rights, including food, health, and water. Biofuels should be environmentally sustainable. Biofuels should contribute to a net reduction of total greenhouse gas emissions. Biofuels should adhere to fair trade principles.
What are the issues surrounding the use of biofuels?
Large-scale deforestation of mature trees (which help remove CO2 through photosynthesis — much better than sugar cane or most other biofuel feedstock crops do) contributes to soil erosion, un-sustainable global warming atmospheric greenhouse gas levels, loss of habitat, and a reduction of valuable biodiversity (both on …
How are biofuels transported?
Today, biofuels are primarily transported by other means, including rail, truck, barge, and marine transport, all of which have a more significant environmental footprint than pipeline transportation. Pipelines are the safest, most reliable, economical and environmentally favorable way to transport liquid fuels.
How are biofuels created?
Biodiesel is a liquid fuel produced from renewable sources, such as new and used vegetable oils and animal fats and is a cleaner-burning replacement for petroleum-based diesel fuel. Biodiesel is nontoxic and biodegradable and is produced by combining alcohol with vegetable oil, animal fat, or recycled cooking grease.
Can animal fat burn as fuel?
Fats from animals are removed and turned into oil using a process called rendering. Diesel fuel made from animal fats are commonly made from beef tallow, pork lard, and chicken fat. Through the rendering process, the fat is grinded until a fine consistency is achieved.
Can animal waste be used as fuel?
Dry dung fuel (or dry manure fuel) is animal feces that has been dried in order to be used as a fuel source. It is used in many countries. Using dry manure as a fuel source is an example of reuse of excreta. A disadvantage of using this kind of fuel is increased air pollution.
Are biofuels ethical?
Biofuels are attractive for a number of reasons, she said. The report by the Nuffield Council on Bioethics “found a number of quite serious ethical concerns, mainly focusing on deforestation and biodiversity loss, risks to food security, some human rights breaches, and concerns of inequity,” Buyx said.
What is the chemical reaction of biodiesel?
Biodiesel is an alternative fuel for diesel engines that is produced by chemically reacting a vegetable oil or animal fat with an alcohol such as methanol or ethanol. In words, the reaction is: Oil + alcohol → biodiesel + glycerin
What is biobiodiesel?
Biodiesel is an alternative fuel for diesel engines that is produced by chemically reacting a vegetable oil or animal fat with an alcohol such as methanol or ethanol. In words, the reaction is: The photo shows a bottle of biodiesel and glycerin (also called glycerol).
What are the challenges of biodiesel production?
However, these oils present special challenges for biodiesel production because they contain contaminants such as water, meat scraps, and breading that must be filtered out before the oil is converted to biodiesel. Methanol is the most common alcohol used for making biodiesel.
How is biodiesel made from animal fat?
The chemical reaction that converts a vegetable oil or animal fat to biodiesel is called “transesterification.” This is a long name for a simple process of combining a chemical compound called an “ester” and an alcohol to make another ester and another alcohol. Oils and fats are included in the ester family.