Industry Hydrogen Recovery Unit Ammonia Plant For Methanol Production

Hydrogen Recovery Unit OPPORTUNITY

In methanol production, synthesis gas is generated by reforming natural gas with steam. The synthesis gas is compressed and then reacted to form methanol. Unreacted syngas is recycled to the reactor. Since the normal ratio of hydrogen to carbon in the synthesis gas is greater than 2 ( the value required for methanol synthesis), excess hydrogen is removed by purging a hydrogen rich stream from the reactor loop and sending it to fuel.

CnHm+O2 — CO+H2O

Hydrocarbon firstly reacte with O2 of Vapour,steel strip with mutually will become

CO,with tem improving,it will crack,atomic group smaller hydrogen molecule will

easily expanding with steel strip,all these atomic

group cracking place hydrogen is saturation,easily

become volatilization light hydrocarbon(450℃,while

H2 helpful for restore carbon,however there still

some carbon which inside steel surface,while 700℃

H2 will reacte directly with carbon,reacte CH4

CnHm+O2 — CnOm-2+H2

Steel annealing former process will use rolling oil,rolling oil main part is mineral oil,its main part including

each hydrocarbon-called impurities,mineral oil including sulphur,N2,O2 etc element

Recovering principle:

Bell type furnace system produce waste gas via former treatment unit(dry or water spraying)remove

waste gas dust,oil etc impurities,then waste gas via gas,water separator remove water&some oil, enter

into blower,the gas after supercharged will into deaerator remove O2,water will be produced&release

plenty of heat, after treatment gas via cooler discharge water&cooling,separate water via gas,water

separator,while oil filter remove oil,via adsorbing dryer to deeply remove oil,water,CO2 etc micro

impurities,finished waste gas purificaiton process; after that via pressure adjust device send to

furnace .