Production of Synthesis from Natural Gas by Steam Reforming Hysys Simulation Presented By : Presented By :  Beshayer Al-Dihani  Hessa Al-Sahlawi  Latifa AL-Qabandi Supervised By: Supervised By:  Prof. Mohamed A. Fahim  Eng. Yusuf Ismail Ali

Agenda HYSYS description Section 100:(Steam reforming and Heat recovery section) Section 200 (Carbon Dioxide Separation) Section 300 (Hydrogen Skimming)

HYSYS description: we selected our components

The fluid packages are chosen, ping-Robinson and Amine Package.

Then we added our reaction in reaction tab Where: Rxn-1: CH 4 + 2O 2  CO 2 + 2H 2 O Rxn-2: CH 4 + H 2 O  CO + 3H 2 Rxn-2: CH 4 + H 2 O  CO + 3H 2 Rxn-3: 3CH 4 + 2H 2 O + CO 2  4CO + 8H 2 Rxn-3: 3CH 4 + 2H 2 O + CO 2  4CO + 8H 2

Section 100:(Steam reforming and Heat recovery section):-

Assumption: 1- In section 100, we replaced the H2S Adsorber with component splitter [C-101A&B] because in HYSYS there is no adsorber column. 2- We used two reactors for steam reformer, one worked as conversion reactor where combustion reaction [Rxn-1] take place then we used the heat produced from it as a heat input for the second reactor which was equilibrium reactor where our man reactions take place [Rxn-2,Rxn-3]. 3- We used coolers [E-104.] and [E-110] because we had a temperature cross problem. 4- We did compressor [K-103] in two stages, in the first stage (Recy CO2 stream) was mixed in mixer [Mix-101]. And in the second stage (water3 stream) where recycled to mixer [Mix-101].

It’s necessary to remove sulfur components down to such low level because the removing catalyst is highly sensitive to sulfur poisoning. The flow rate was:

Steam Reforming is consists of Convection section and Radiation section:

The flow rates are:

In heat recovery units are shown below :

Section 200 (Carbon Dioxide Separation):

Assumptions In section 200, the absorber [C-201] was worked by Amine Pkg as a fluid package because we had MDEA solution, and this column had 95 numbers of stages. In section 200, the absorber [C-201] was worked by Amine Pkg as a fluid package because we had MDEA solution, and this column had 95 numbers of stages. We used valve [VLV-100] & [VLV-101] to minimize the pressure. We used valve [VLV-100] & [VLV-101] to minimize the pressure. Stripper column [C-203] is actually absorber because in HYSYS there is no stripper column, since Amine Pkg did not work with us we used Peng Roberson Pkg here, and this column had 10 numbers of stages. Stripper column [C-203] is actually absorber because in HYSYS there is no stripper column, since Amine Pkg did not work with us we used Peng Roberson Pkg here, and this column had 10 numbers of stages.

We used component splitter [X-102] to minimized flow rate of water. We used component splitter [X-102] to minimized flow rate of water. Because the loss in MDEA solution we added make up amine in mixer [MIX- 105], and to reduce the loss from the flash column [C-202] we added CO2 make up. Because the loss in MDEA solution we added make up amine in mixer [MIX- 105], and to reduce the loss from the flash column [C-202] we added CO2 make up.

Absorber Column

Section 300 (Hydrogen Skimming):

Assumption We modified this section as follow: We modified this section as follow: - We used two flash columns, one acted as demister to absorb the liquid, the other one [V-104] acted as separator to separate the liquid from the vapor. - We replaced the membrane [ prism separator ] in actual design with component splitter [ X-101 ] in our design to get the final product. - We replaced the membrane [ prism separator ] in actual design with component splitter [ X-101 ] in our design to get the final product.

Thank You