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Tyas .

Unknown Affiliation

Author-ID : 2613593

Chemical Engineering, Chemistry & Bioengineering Chemistry

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KAJIAN AWAL KATALIS HARGA RENDAH UNTUK PRODUKSI DIMETIL ETER SECARA LANGSUNG DARI SYNGAS BATUBARA Bhakti .; Zulaicha .; Joni .; Galuh .; Nurdiah .; Tyas .
Jurnal Ilmiah Teknik Kimia Vol 1, No 1 (2017): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Coal utilization including its processing for an alternative energy is quite large in Indonesia and absolutely necessary. Especially on coal with low calorific value like lignite, at handling with direct combustion as in conventional coal power plant is an environmentally friendly manner because its emission contains harmful substances NOx and CO. Approching with clean coal technologies, gasification, emissions of harmful substances into the environment can be reduced. This gasification process, coal is converted into syngas which is an intermediate product that can be directed into various types of alternative fuels such as methanol. Development of efficient and low cost DME synthesis from syngas produced from gasification of coal has been our interest, in particular development of low cost catalyst which is shown by Low Pressure Fixed Bed Reactor. In this research scheme, we develop the catalyst using Co-precipitation method and Copper based catalyst. In this preliminary study, the DME synthesis of catalysts based on Methanol catalyst has been modified by combined it with HZSM-5 as dual catalyst. This process will perform DME production in one step Fixed Bed Reactor. micromeritic reactor at mild operating condition. The results of modified catalyst to Sud-Chemie/NaHZSM-5 Si/Al 25 showed that DME synthesis at 30 bar and 270oC reach a good conversion, up to 0.9% and predicted still able to increase. Keywords: low rank coal, DME synthesis, low cost catalyst, low pressure fixed bed reactor

STUDI PENDAHULUAN KATALIS BIAYA RENDAH UNTUK PRODUKSI METANOL DENGAN TARGET SEBAGAI PROSES KELANJUTAN DARI MODEL SISTEM GASIFIKASI PADA FLUIDIZED BED BERKATALIS Joni .; Adiarso .; Galuh .; Nurdiah .; Tyas .; Bralin .; Erlan .
Jurnal Ilmiah Teknik Kimia Vol 1, No 1 (2017): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Utilization of coal as well as its processing as an alternative energy is quite large in Indonesia and absolutely necessary. Especially on coal with low calorific value such as lignite, handling with direct combustion as in conventional coal power plant is an environmentally friendly manner because its emission contains harmful substances NOx and CO. With clean coal technologies (such as gasification), emissions of harmful substances into the environment can be reduced. This gasification process, coal is converted into syngas which is an intermediate product that can be directed into various types of alternative fuels such as methanol.Development of efficient and low cost methanol synthesis from syngas produced from gasification of coal has been our interest, in particular development of low cost catalyst which is shown by Low Pressure Fixed Bed Reactor. In this research scheme, we develop the catalyst using Co-precipitation method and Copper based catalyst.. In this preliminary study, the synthesis of catalysts based on CuZnAl has been performed and tested in once trough process micromeritic reactor at mild operating condition. The results show that methanol synthesis at 20 bar and 270oC reach a good conversion, i.e. 1.15% of methanol at Molar Ratio (Cu:Zn / CuZn: Al2O3): 4: 3: 1. These results have been compared to commercial catalysts on the same conditions which reached 0.26% of methanol . Kata Kunci : low rank coal, methanol synthesis, low cost catalyst, low pressure fixed bed reactor

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