HCBBS Forum (English)
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request

Seeking help with question 6 on the afternoon of the first day in year 14

2016-08-30View Original

Thread Content

Ethyl succinate is produced by reacting succinic anhydride with n-hexanol. The reaction is carried out in a batch reactor, where solid maleic anhydride is first added to the reactor and heated with steam until it melts (with a melting point of 326 K). After complete melting, n-hexanol is quickly added; in this liquid mixture, the concentrations of the two components are 4.55 kmol/m3 and 5.34 kmol/m3 respectively. If the entire reaction is carried out isothermally at 373 K, what are the values (in kg) of cooling water and steam required to process 1 m3 of reaction mixture when the conversion rate of maleic anhydride reaches 98%, among the following options? The average specific heat capacity of the reaction mixture is known to be 1980 kJ/m3·K. It is assumed that the temperature difference between the cooling water before and after use is 7 K, and the heating steam is saturated steam at 0.405 MPa (with a latent heat of vaporization of 2136 kJ/kg). The heat of reaction is -33.5 kJ/mol. A.4098;36.6 B.5098;43.6 C.6098;53.6 D.7123;50.8 Please experts provide the solution process for this equation, thank you! ! !
Reply #22016-09-01
My personal calculation: Steam heating of the material: 1980*1*(373-326)/2136 = 43.6. Heat removed by the circulating water due to the reaction: 4.55*0.98*1000*33.5/(4.187*7) = 5098
Reply #32017-08-09
First, solid maleic anhydride is added to the reactor and heated with steam until it melts (with a melting point of 326 K). Is this amount of heat not taken into account?
Reply #42017-08-09
First, solid maleic anhydride is added to the reactor and heated with steam until it melts (with a melting point of 326 K). Is this amount of heat not taken into account?
Reply #52017-08-09
First, solid maleic anhydride is added to the reactor and heated with steam until it melts (with a melting point of 326 K). Is this amount of heat not taken into account?
Reply #62017-08-09
First, solid maleic anhydride is added to the reactor and heated with steam until it melts (with a melting point of 326 K). Is this amount of heat not taken into account?
Reply #72017-08-09
First, solid maleic anhydride is added to the reactor and heated with steam until it melts (with a melting point of 326 K). Is this amount of heat not taken into account?
Reply #82017-08-09
First, solid maleic anhydride is added to the reactor and heated with steam until it melts (with a melting point of 326 K). Is this amount of heat not taken into account?
Reply #92018-08-14
At first I didn’t quite understand, but after looking at the question more carefully, it asked for the amount of steam required to process one cubic meter of the mixed liquid; this presumably means ignoring the heat of fusion

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.