Craking is the process whereby complex molecules are broken down into simpler molecules :
Example :
C36H74 + H2 >> C2H6 + C34H70
Reforming is a process used to convert molecules having low octane ratings into hight- octane liquid products
Example
CH3(CH2)6CH3 >> CH3C(CH3)2CH2CH(CH3)CH3
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Cracking is a process where larger hydrocarbon molecules are broken down into smaller ones, usually to produce more valuable products such as gasoline. Reforming is a process where hydrocarbon molecules are rearranged to form molecules with higher octane ratings, commonly used in gasoline production. Both processes are important in the petroleum industry to optimize the production of valuable fuels and chemicals.
The equation for reforming ATP from ADP and inorganic phosphate is: ADP + Pi + energy → ATP. This process is catalyzed by the enzyme ATP synthase during cellular respiration.
Steam reforming is a widely used method for producing synthesis gas (syngas), which is a mixture of hydrogen and carbon monoxide. In this process, natural gas is reacted with steam at high temperatures to produce syngas, which is a versatile building block for various chemical processes, such as producing ammonia or methanol. Catalysts are often employed to enhance the reaction rates and increase the efficiency of syngas production via steam reforming.
Cracking long-chained hydrocarbons produces shorter hydrocarbons (such as ethylene, propylene) and alkenes (unsaturated hydrocarbons).
The heat of reaction for methane steam reforming is an endothermic process, meaning heat is required for the reaction to occur. The reaction produces hydrogen and carbon monoxide from methane and steam. The heat of reaction for this process is around 206 kJ/mol of methane converted.
Glass can be heated without cracking by gradually increasing the temperature and allowing it to cool slowly to prevent thermal shock. This process helps the glass to expand and contract evenly, reducing the risk of cracking.