Question

Calculati masa de poliacrilonitril care se poate obtine din 160 kg metan , stiind ca sinteza acrilonitrilului decurge cu un randament de 90% iar sinteza poliacrilonitrilului cu un randament de 80%. Un pic de ajutor ? am nevoie urgent

Answer 1

2×16kg......26kg
2CH4 = C2H2 + 3H2
160kg.......130kg

M C3H3N = 53g/mol
26kg.....................53kg
C2H2 + HCN = CH2=CH-CN
130kg.....................265kg

265 kg acrilonitril = m teoretic
mpractic = mteoretic×randament/100=265×90/100=238.5 kg

53kg.........................53kg
nH2C=CH-CN = -(H2C-CH--CN)n
238.5kg................238.5kg

238.5 = mt
mp= 238.5×80/100=190.8 kg PNA