Affordable Hydrazine production from conventional Raschig process

Use of liquid fuel reactors to produce hydrazine for under $500/ton.

0.75-1 ₵/kwh levelized generation cost

Capex: $1,000,000/mw

Lifetime: 40 years

Planned capacity: 41 mw

Hydrazine production: 1.9 tons per hour

Potential revenue: $81,000,000

Chlore-Alkali membrane electrolyzer: Plant capex: $105,000/tpd $19/ton NaOH/CI ($480 million for 1,680,000 tpy capacity, 15 year before major refurbishment)

Sodium hydroxide: 4.0 ton/ton N2H4: 2500 kwh/ton: $29. (sodium chloride bi-product recycled)

$192

Chlorine: 2.6 ton/ton N2H4: 2500 kwh/ton: $25

Total: $65

0.9 tons NH3 $100/ton: No cost as 240 kg of H2 are produced from electrolyzing sodium chloride

Total: $308/ton N2H4

N2H4 12.58% H2 by weight

Raschig plant cost very minimal: $49/ton N2H4: $12,000,000 for 7,000 tpy (35 year lifetime)

Total electricity consumed: 21,500 kwh/ton N2H4

Salt continuously recycled, sodium hydroxide and chlorine consumed, sodium chloride produced as bi-product of Raschig process then re electrolyzed into sodium hydroxide, closed-loop system!

Net H2 cost: $2.7/kg. PEMFC 2.6x more efficient than SI engine, cost per gallon gasoline equevalent is $1.03/gal!

Current market price for hydrazine in China: $5200/ton

Leave a Reply