Economically recover olefins from FCC offgases (Journal
This ethylene yield is anywhere from 0.7 to 1.1 of the FCC feed as opposed to 26 to 36 for naphtha or gas oil cracking in conventional olefin plants. Due to high FCC unit feedrates (typically 25 000 to 85 000 bpsd for most North American refineries) even with a low ethylene yield the olefins production can be significant.
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Syngas production by catalytic co-gasification of coal
Dec 01 2017 · In this paper a project is carried out to develop a catalytic process for tar conversion and syngas production through gasification of biomass-coal blends in a dual circulating fluidized bed. Alkali metals of NaHCO 3 KHCO 3 and K 2 CO 3 are considered as effective catalysts for circulating fluidized bed gasification of coal/biomass blends by
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Waste Management and Conversion to Pure Hydrogen by
Industrial Wastes. Industrial waste is produced and discarded in any factories and industries. This type of waste generators may be categorized into chemical manufacturers (reactive waste) petroleum refining manufacturing (sludge and exhausted gases from refining process) etc. (EPA 1986).Annual worldwide production of municipal solid waste ranges from 350 to 1200 kg MSW/capita in high-income
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6.2.6. Water Gas Shift Hydrogen Production netl.doe.gov
Water Gas Shift In applications where scrubbed syngas hydrogen/carbon monoxide (H2/CO) ratio must be increased/adjusted to meet downstream process requirements the syngas is passed through a multi-stage fixed-bed reactor containing shift catalysts to convert CO and water into additional H2 and carbon dioxide (CO2) according to the following reaction known as the water-gas shift (WGS) reaction
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Towards Solar Methanol Past Present and Future
The original BASF process involved the gas‐phase heterogeneous catalytic conversion of syngas to MeOH at high temperatures and pressures of 360–380 °C and 25–30 MPa respectively using a chromium and manganese oxide–based catalyst. 10 This process afforded a relatively low yield of just 10 mol MeOH. 10 Today the preferred catalysts
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Kbr 1 report
Jan 04 2016 · The process is an economically viable route for the manufacture of ammonia in places that do not have a source of low cost natural gas but have abundant low rank coals. 19. Conclusions The new KBR coal to ammonia process is based on the KBR TRIG gasification technology integrated with proven KBR ammonia synthesis technology.
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ACS Sustainable Chemistry Engineering Vol 5 No 9
Optimization of Active Sites of MoS 2 Nanosheets Using Nonmetal Doping and Exfoliation into Few Layers on CdS Nanorods for Enhanced Photocatalytic Hydrogen Production. D. Praveen Kumar Myeong In Song Sangyeob Hong Eun Hwa Kim Madhusudana Gopannagari D. Amaranatha Reddy and Tae Kyu Kim
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USA1Gas stream productionGoogle Patents
Gas Stream Production The present invention provides a method for the production of carbon dioxide and/or hydrogen gas streams the method comprising (i) thermally treating a feedstock material to produce a syngas comprising carbon monoxide and hydrogen and plasma-treating the syngas in a plasma treatment unit (ii) reacting the plasma-treated syngas with water in a further treatment unit
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Fischer–Tropsch processWikipedia
The Fischer–Tropsch process is a collection of chemical reactions that converts a mixture of carbon monoxide and hydrogen into liquid hydrocarbons.These reactions occur in the presence of metal catalysts typically at temperatures of 150–300 °C (302–572 °F) and pressures of one to several tens of atmospheres.The process was first developed by Franz Fischer and Hans Tropsch at the
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Costs of Synthesis Gases and MethanolChemical
The cost of syngas can be highly variable depending on hydrogen/ carbon monoxide ratio raw material and process scale of operation and extent of integration with other processes cost of CO 2 credit for hydrogen and so on. Often the syngas routes are indirect proceeding via methanol and including a carbonylation step using carbon
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A review of cleaning technologies for biomass-derived syngas
May 01 2013 · This adds cost and complexity to a process that only recovers 85 –95 of total sulfur yielding SO 2 emissions often approaching 10 of the inlet sulfur mass . Other equipment (combustors heat recovery equipment boilers condensers etc.) and the multiple stages that are often required will also impact the profitability of recovering
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Kbr 1 report
Jan 04 2016 · The process is an economically viable route for the manufacture of ammonia in places that do not have a source of low cost natural gas but have abundant low rank coals. 19. Conclusions The new KBR coal to ammonia process is based on the KBR TRIG gasification technology integrated with proven KBR ammonia synthesis technology.
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Kbr 1 report
Jan 04 2016 · The process is an economically viable route for the manufacture of ammonia in places that do not have a source of low cost natural gas but have abundant low rank coals. 19. Conclusions The new KBR coal to ammonia process is based on the KBR TRIG gasification technology integrated with proven KBR ammonia synthesis technology.
Get PriceEnergy Efficient Production of Hydrogen and Syngas from
The Rh/CeO2/M (M = SiO2 Al2O3 and ZrO2) type catalysts with various compositions have been prepared and investigated in the gasification of cellulose a model compound of biomass in a fluidized bed reactor at 500−700 °C. The conventional nickel and dolomite catalysts have also been investigated. Among the catalysts Rh/CeO2/SiO2 with 35 CeO2 has been found to be the best catalyst with
Get PriceFischer–Tropsch processWikipedia
The Fischer–Tropsch process is a collection of chemical reactions that converts a mixture of carbon monoxide and hydrogen into liquid hydrocarbons.These reactions occur in the presence of metal catalysts typically at temperatures of 150–300 °C (302–572 °F) and pressures of one to several tens of atmospheres.The process was first developed by Franz Fischer and Hans Tropsch at the
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Kunlei LiuAssoicate Director for ResearchUniversity
Methane thermocatalytic decomposition has been recognized as an advanced process for hydrogen (H2) production or natural gas decarbonization in the carbon constrained world due to its low CO2
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A system and method for providing an integrated indirectly fired reactor and steam generator are disclosed. According to one embodiment the reactor comprises an indirect heating zone heating water and generating steam a mixing zone mixing feedstock and the steam and providing a mixture of the feedstock and the steam and a reaction zone comprising a first reactor and a second reactor.
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(PDF) Product and process design principles synthesis
Product and process design principles synthesis analysis and evaluation. Juan Organista. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 32 Full PDFs related to this paper. READ PAPER. Product and process design principles synthesis analysis and evaluation.
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Processes Free Full-Text Latest Developments in
These include (1) the high cost of the required enzymes (2) the low productivity of the process (3) the deactivation of enzymes and (4) the poor stability of the system . To improve the associated disadvantages of the conventional batch reactors the idea of immobilized enzymes was introduced in
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Achieving waste to energy through sewage sludge
Jun 15 2015 · As can be observed the influence of the sludge/slags ratios on the syngas production could be ignored in atmospheres of 80 N 2 /20 O 2 80 CO 2 /20 O 2 and 65 CO 2 /35 O 2 while in an atmosphere of 50 CO 2 /50 O 2 the syngas production remarkably increased with
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SyngasWikipedia
Syngas or synthetic gas is a fuel gas mixture consisting primarily of hydrogen carbon monoxide and very often some carbon dioxide.The name comes from its use as intermediates in creating synthetic natural gas (SNG) and for producing ammonia or methanol.Syngas is usually a product of coal gasification and the main application is electricity generation.
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Coal synthesis gas a substitution of natural
Apr 07 2015 · The overnight capital cost of coal gasification plants is given per GJ of syngas output and ranges from 13/GJ for bituminous coal to 17.2/GJ for subbituminous coal (US 2005). Similarly the syngas production cost decreases with increasing coal quality and ranges from 15.6/GJ to 19.3/GJ. The production cost is dominated by the investment cost.
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Achieving waste to energy through sewage sludge
Sep 05 2015 · As can be observed the influence of the sludge/slags ratios on the syngas production could be ignored in atmospheres of 80 N 2 /20 O 2 80 CO 2 /20 O 2 and 65 CO 2 /35 O 2 while in an atmosphere
Get PriceAdvanced Biofuel TechnologiesSlideShare
Sep 26 2013 · The combustible part is mainly composed of hydrogen (H2) carbon monoxide (CO) methane (CH4) and short chain hydrocarbons moreover inert gases A higher process temperature or using steam as gasification agent leads to increased H2 content High pressure on the other hand decreases the H2 and CO content Advanced Biofuel Technologies
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(PDF) COAL SYNTHESIS GAS A SUBSTITUTION OF NATURAL
The overnight capital cost of coal gasification plants is given per GJ of syngas output and ranges from 13/GJ for bituminous coal to 17.2/GJ for subbituminous coal (US 2005).Similarly the syngas production cost decreases with increasing coal quality and ranges from 15.6/GJ to 19.3/GJ. The production cost is dominated by the investment cost.
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Achieving waste to energy through sewage sludge
Jun 15 2015 · As can be observed the influence of the sludge/slags ratios on the syngas production could be ignored in atmospheres of 80 N 2 /20 O 2 80 CO 2 /20 O 2 and 65 CO 2 /35 O 2 while in an atmosphere of 50 CO 2 /50 O 2 the syngas production remarkably increased with
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Waste Management and Conversion to Pure Hydrogen by
Industrial Wastes. Industrial waste is produced and discarded in any factories and industries. This type of waste generators may be categorized into chemical manufacturers (reactive waste) petroleum refining manufacturing (sludge and exhausted gases from refining process) etc. (EPA 1986).Annual worldwide production of municipal solid waste ranges from 350 to 1200 kg MSW/capita in high-income
Get PriceLimestone as a sorbent for CO2 capture and its application
Global greenhouse gas emissions continue to increase despite the knowledge that the rise in atmospheric concentrations will have devastating effects on climate and human lives. Carbon dioxide capture and storage can be a stop-gap measure to mitigate CO₂ emissions from existing fossil fuel facilities during their gradual replacement by low-carbon alternatives such as biomass. Calcium oxide
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Final Year Thesis.PDFSlideShare
May 19 2016 · 9.3 Total Production Cost 9.3.1 Manufacturing Cost 9.3.2 General Expenses 9.4 Equipment Cost References The first process step in the catalytic stage is the gas heating process. It is necessary to prevent sulfur condensation in the catalyst bed which can lead to catalyst fouling. to Natural Gas Processing 18 1.6 The Claus Process The
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(PDF) Integrated Forest Biorefinery pratima bajpai
The LignoBoost process enables the fast production of high-quality lignin at a low cost. Low-filtration resistances can be maintained throughout the process and an even lignin filter cake that is easy to wash and finally dewater is formed in the 394 19 Integrated Forest Biorefinery second filtration/washing stage.
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