Isoprene

Lybarger, Hugh M.

doi:10.1002/0471238961.0919151612250201.a01

Cited by 4 publications

(3 citation statements)

References 56 publications

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“…The effluent of reactor R-2 contained 3.0 wt % water, which formed azeotropic mixtures with both isoprene and 3-MTHF . The phase behavior of this mixture prevented both high purity and high recovery of isoprene and 3-MTFH/water as separate streams out of a single distillation column.…”

Section: Results and Discussionmentioning

confidence: 99%

Process Design and Economic Analysis of Renewable Isoprene from Biomass via Mesaconic Acid

Lundberg

Zhang³

et al. 2019

ACS Sustainable Chem. Eng.

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Combined fermentation and thermocatalytic conversion of biomass to isoprene comprises a hybrid process to provide the key monomer in the manufacturing of renewable synthetic rubber. In this work, design and economic evaluation of a chemical process considers the three-step process chemistry: (a) fermentation of glucose to either mesaconic or itaconic acid, (b) catalytic hydrodeoxygenation of mesaconic or itaconic acid to 3-methyl-tetrahydrofuran, and (c) catalytic dehydra-decyclization of 3-methyl-tetrahydrofuran to isoprene. Detailed reaction and separation systems were designed to maximize catalytic yield to isoprene and recover it with high purity. An economic sensitivity analysis identified hydrodeoxygenation and dehydra-decyclization catalytic selectivity as the critical opportunities for improving process economics. The process based on existing catalytic performance achieves a minimum sale price of isoprene (defined as the price which results in a project net present value of zero) of $4.07 kg–1 ($1.85 lbm –1) at a scale of 100,000 t yr–1 of mesaconic acid purchased at $1.00 kg–1. Six process enhancements based on improved future catalytic technology are considered, with several scenarios achieving a minimum sale price of isoprene below $2.50 kg–1 ($1.13 lbm –1).

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Section: Results and Discussionmentioning

confidence: 99%

Process Design and Economic Analysis of Renewable Isoprene from Biomass via Mesaconic Acid

Lundberg

Zhang³

et al. 2019

ACS Sustainable Chem. Eng.

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“…The growth in the tire industry is, in turn, dependent on the automotive industry that is growing and projected to witness a global sales rise of 60% by 2020. The global rubber production has been increasing since 2000 [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Economic Analysis of Isoprene Production from Good Year Scientific Process

Asghar¹,

Masoom²,

Javed³

et al. 2020

AJCHE

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The isoprene rubber is very much like natural rubber but made artificially or synthetically. Essentially similar to natural rubber in properties, this rubber may be somewhat weaker because it is not 100% the cis-isomer. This rubber is used in the same type of products as natural rubber. About 95% of isoprene production is used to produce cis-1,4-polyisoprene, a synthetic version of natural rubber. The growing demand for fuel efficiency and eco-friendly tires is driving the tire industry and in turn the demand for polyisoprene in the tire industry. The Isoprene Market was valued at USD 1.93 billion in 2015 and is projected to reach USD 2.96 billion by 2021. The isoprene demand in Pakistan will increase up to 24.8% from 2018 to 2025 reportedly. The isoprene market is increasing due to its increasing applications in tires, conveyor belts, hoses, molded rubber, and also in medical equipment such as gloves and balloons. Isoprene can manufacture from four different processes at commercial scale, but Isoprene from formaldehyde is the prevailing process in the industries. This process has disadvantage of low yield and by-products. So this process is further modified to improve the yield and the operating conditions. But still byproducts are the main problems which decreases the selectivity and yield. To overcome these issues, manufacturing of Isoprene from propylene is studied in plant design project. It is found that this process has 65% yield and have selectivity of 95%. A cost Analysis was made after the design of different plant equipment, and it is found that a plant of 12000 tons per year has payback period of approximately 4 years.

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“…One million tonnes of isoprene are produced globally each year from petrochemical resources, where most of the world’s synthetic isoprene is coproduced with ethylene cracking of light naphtha . To a lesser extent, it is also coproduced with pyrolytic gasoline processing of heavy naphtha . These production processes are energy intensive and have selectivities in the range of 2%–5% toward isoprene .…”

Section: Introductionmentioning

confidence: 99%

Renewable Rubber and Jet Fuel from Biomass: Evaluation of Greenhouse Gas Emissions and Land Use Trade-offs in Energy and Material Markets

Riazi

Karanjikar

Spatari

2018

ACS Sustainable Chem. Eng.

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Biomass holds great promise for producing fuels, chemicals, and polymeric materials to address climate change and energy security. Polyisoprene, the raw material used to produce rubber, can be produced from rubber trees and synthesized from the monomer that is derived from both petrochemical feedstock and fermentable sugars in biomass. We explore select life cycle environmental impacts of an alternative pathway for producing polyisoprene from corn stover and forest residue along with dimethyl cyclooctadiene, a high density jet fuel blend. Following feedstock pretreatment and hydrolysis, the sugars generated are fermented to methyl butenol (MBE) and then dehydrated to isoprene, which is further polymerized to polyisoprene. Within the same dehydration reactor, MBE undergoes catalytic conversion to dimethyl cyclooctadiene. We use life cycle assessment to evaluate the greenhouse gas (GHG) emissions and land requirements for producing polyisoprene produced from forest residue and corn stover and compare these to polyisoprene produced from petroleum and rubber trees. Both corn stover and forest residue-based polyisoprenes have negative global warming potential (GWP) between −5.7 to −1.3 kg CO2e/kg polyisoprene, even while considering sources of uncertainty. Moreover, polyisoprene from rubber tree plantations in Southeast Asia has the most significant land use intensity compared to other feedstocks.

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Isoprene

Cited by 4 publications

References 56 publications

Process Design and Economic Analysis of Renewable Isoprene from Biomass via Mesaconic Acid

Process Design and Economic Analysis of Renewable Isoprene from Biomass via Mesaconic Acid

Economic Analysis of Isoprene Production from Good Year Scientific Process

Renewable Rubber and Jet Fuel from Biomass: Evaluation of Greenhouse Gas Emissions and Land Use Trade-offs in Energy and Material Markets

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