Learn about the 5 colors of hydrogen: Blue, Green, Grey, Yellow, and Pink

View profile for Dileep Kumar Gupta

SR. Manager (Engineering Recruitment) at The Adecco Group.Lets talk about #EPCJobs, #PMCJobs #EPCMJobs #EPCCJobs #EPCIJobs #Oil & Gas #Refinery #Petrochemical #Design #Data Center #Construction #India #Middleeast #Europe

𝑫𝒊𝒇𝒇𝒆𝒓𝒆𝒏𝒕 𝒄𝒐𝒍𝒐𝒓𝒔 𝒐𝒇 𝑯𝒚𝒅𝒓𝒐𝒈𝒆𝒏! I thought H2 as an energy source is classified in just two colors – Blue and Green.  But I came across an interesting article from EPC consultant about 𝗳𝗶𝘃𝗲 different colors H2! The color code is related to the method for H2 production.  𝗕𝗹𝘂𝗲 𝗛𝘆𝗱𝗿𝗼𝗴𝗲𝗻: Splitting Natural Gas (mostly methane) into H2 and CO2. The process is Steam Methane Reforming (SMR). CO2 is a by-product but captured through CCS. 𝗚𝗿𝗲𝘆 𝗛𝘆𝗱𝗿𝗼𝗴𝗲𝗻: This one probably has no future, at least no one wants to talk about it. H2 is produced by SMR (like blue hydrogen), but CO2 is not captured. If I am right, most of the current refineries produce grey H2. 𝗚𝗿𝗲𝗲𝗻 𝗛𝘆𝗱𝗿𝗼𝗴𝗲𝗻: Splitting water into H2 and O2. The process is electrolysis. The Source of electricity is a combination of renewables like solar and wind. 𝗬𝗲𝗹𝗹𝗼𝘄 𝗛𝘆𝗱𝗿𝗼𝗴𝗲𝗻: Similar to Green H2 but the electricity source is only solar (not a combination of other renewables).   𝗣𝗶𝗻𝗸 𝗛𝘆𝗱𝗿𝗼𝗴𝗲𝗻: Again, similar to Green H2 but using nuclear energy for electrolysis.

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