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Recently, Maoming Petrochemical’s refining division has faced the unfavorable situation of the country’s “dual restrictions and double controls” leading to a sharp increase in raw material coal and a significant increase in the cost of hydrogen production from coal hydrogen plants.
Can't wait, through the optimization of the whole process, we strive to increase the load of the No.
3 hydrogen production unit, effectively reduce the cost of hydrogen production, and achieve good results
.
Under the background of "dual carbon", carbon emissions are strictly controlled across the country, and coal prices continue to rise.
According to estimates, the cost of hydrogen per ton of hydrogen production from coal is much higher than the cost of hydrogen production from dry gas.
How to increase the load of hydrogen production from dry gas and reduce coal Hydrogen production load has become the focus of current optimization and efficiency creation
.
The branch production, technology and other management offices and the joint second workshop organized professional backbones to carry out technical research
.
In response to the problem of high hydrogen content in the current hydrogen production raw gas, they optimized the dry gas process and added purification facilities such as membrane separation to maximize the production of hydrogen
The raw material gas of the No.
3 hydrogen production unit is mainly hydrogenated dry gas, and the hydrogen content is basically around 50%-60%.
The high hydrogen content will cause the overall conversion rate of hydrogen production to decrease
.
The members of the research team actively communicate with the branch production management office, continuously optimize the hydrogen production raw materials, increase the membrane separation system, recover and purify the hydrogen in the hydrogen-rich line, and increase the hydrogen production
In order to ensure the smooth operation of the No.
3 hydrogen production unit during the load raising process, members of the research team strictly monitored each key parameter, carefully explored the optimal operating range of the key parameter, and established a process operation account under different loads
.
The "Guiding Opinions on Optimizing Operation of the No.
At the same time, in order to ensure that the raw material dry gas volume of the 3 hydrogen production plant is sufficient, the research team has taken a number of measures to increase the raw material dry gas volume
.
On the one hand, strengthen communication and coordination with the company’s planning, production and other departments, as well as the chemical branch, to ensure that the chemical methane and hydrogen can be transported to refining at the maximum capacity.
After a series of optimizations and adjustments, the hydrogen production of No.
3 hydrogen production unit increased from about 30,000 standard/hour at the beginning of October to the current 45,000 standard/hour to 48,000 standard/hour, and the maximum can reach 50,000 standard/hour.
Hydrogen production increased by 1.
3 tons/hour, saving hydrogen production cost by about 6,500 yuan/ton, and monthly cost reduction and efficiency increase by nearly 20 million yuan
.
(Liu Liting)
