Related Experiment Video
Updated: May 16, 2026
11:33
Laboratory Production of Biofuels and Biochemicals from a Rapeseed Oil through Catalytic Cracking Conversion
Published on: September 2, 2016
Towards oil independence through renewable methanol chemistry
1Loker Hydrocarbon Research Institute, University of Southern California, Los Angeles, CA 90089-1661, USA.
Angewandte Chemie (International Ed. in English)
|December 5, 2012
Summary
Recycling carbon dioxide (CO2) into valuable products like methanol and dimethyl ether (DME) offers a sustainable solution to reduce emissions and fossil fuel dependence. This carbon cycle can be powered by renewable or atomic energy sources.
Area of Science:
- Chemical Engineering
- Environmental Science
- Sustainable Chemistry
Background:
- Excessive carbon dioxide (CO2) emissions pose significant environmental challenges.
- Humanity's dependence on fossil fuels contributes to these emissions.
- Developing alternative carbon management strategies is crucial for sustainability.
Purpose of the Study:
- To explore the feasibility of recycling CO2 into valuable chemicals and fuels.
- To present a sustainable carbon cycle that mitigates CO2 emissions.
- To identify potential energy sources for driving this carbon recycling process.
Main Methods:
- Investigated the chemical conversion pathways for CO2 into methanol and dimethyl ether (DME).
- Assessed the potential for producing derived fuels and materials from these products.
- Evaluated the integration of renewable energy sources (hydro, solar, wind) and atomic energy for the process.
Main Results:
- CO2 recycling into methanol and DME is a technically feasible approach.
- This process can yield valuable fuels and materials, creating a circular carbon economy.
- The energy requirements can be met by diverse sustainable energy sources.
Conclusions:
- CO2 recycling presents a viable strategy to combat climate change and reduce reliance on fossil fuels.
- The development of a CO2-based carbon cycle is essential for a sustainable future.
- A combination of renewable and atomic energy can power this transformative technology.
Related Concept Videos
02:15Preparation of Alcohols via Addition Reactions
Overview
The acid-catalyzed addition of water to the double bond of alkenes is a large-scale industrial method used to synthesize low-molecular-weight alcohols. An acidic atmosphere is required to allow the hydrogen in the water molecule to act as an electrophile and attack the double bond in an alkene. The addition of a proton to the double bond creates a carbocation intermediate. The proton preferentially bonds to the less substituted end of the double bond to create a more stable carbocation...
The acid-catalyzed addition of water to the double bond of alkenes is a large-scale industrial method used to synthesize low-molecular-weight alcohols. An acidic atmosphere is required to allow the hydrogen in the water molecule to act as an electrophile and attack the double bond in an alkene. The addition of a proton to the double bond creates a carbocation intermediate. The proton preferentially bonds to the less substituted end of the double bond to create a more stable carbocation...
01:25Biofuels
The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...
03:08Hydroboration-Oxidation of Alkenes
In addition to the oxymercuration–demercuration method, which converts the alkenes to alcohols with Markovnikov orientation, a complementary hydroboration-oxidation method yields the anti-Markovnikov product. The hydroboration reaction, discovered in 1959 by H.C. Brown, involves the addition of a B–H bond of borane to an alkene giving an organoborane intermediate. The oxidation of this intermediate with basic hydrogen peroxide forms an alcohol.
02:17Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
02:35Ethers from Alkenes: Alcohol Addition and Alkoxymercuration-Demercuration
Overview
Ethers can also be prepared from alkenes through acid-catalyzed addition of alcohols and alkoxymercuration–demercuration.
Preparation of Ethers by Acid-Catalyzed Addition of Alcohol to Alkenes
The acid-catalyzed addition of alcohol to an alkene involves treating the alkene with an excess of alcohol in the presence of an acid catalyst to form an ether under suitable conditions. The hydrogen will add to the less substituted carbon so that the nucleophile can attack the more substituted...
Ethers can also be prepared from alkenes through acid-catalyzed addition of alcohols and alkoxymercuration–demercuration.
Preparation of Ethers by Acid-Catalyzed Addition of Alcohol to Alkenes
The acid-catalyzed addition of alcohol to an alkene involves treating the alkene with an excess of alcohol in the presence of an acid catalyst to form an ether under suitable conditions. The hydrogen will add to the less substituted carbon so that the nucleophile can attack the more substituted...
02:24Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation
Introduction
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.