1.1本指南适用于术语E 1126中定义的FEMF。本指南主要用于但不限于发酵乙醇（乙醇）过程的评估。本指南主要用于但不限于小型（容量小于1000加仑/天）工厂的发酵乙醇工艺。 1.2本指南适用于间歇过程和连续过程FEMF系统。由于可以存在多种设备配置，本指南将描述所有FEMF设施通用的必要一般要求。 1.3本指南将与适用的地方、州和联邦规范一起用于设计、建造和运行FEMF设施。 1.4本指南仅适用于具有以下操作特征的工厂，这些工厂是小规模乙醇工厂的典型代表，如下所示: 1.4.1容量:高达50万加仑/年的190加仑乙醇， 1.4.2正常原料:2号黄玉米或其他合适的样品级玉米、大麦或谷物高粱（也称为milo）。还有其他淀粉粒，如小麦、黑麦或燕麦，以及淀粉块茎，如土豆，可以用作原料。糖料作物（甘蔗、甜菜和糖蜜，这是糖厂的副产品）和纤维素作物（木片、稻草等）也是潜在的原料来源。然而，由于近年来对拟建乙醇工厂的兴趣主要集中在使用玉米、大麦和米洛作为乙醇生产原料，预计近期拟建的大多数工厂将主要基于这些丰富的原料。 本指南主要介绍玉米、米洛和大麦作为原料的使用， 1.4.3常规工艺燃料:天然气、丙烷、燃油、木材或煤， 1.4.4产品:190度以下的乙醇。水分含量为60%-75%（按重量计）的酒糟和稀酒糟，用作动物级饲料而非人类级食品， 1.4.5工艺:本指南中提及的乙醇生产工艺包括谷物干磨、分批或连续蒸煮、酶水解、分批发酵、连续蒸馏和压榨或离心以脱水蒸馏液（例如，从蒸馏液中分离悬浮固体），以及 1.4.6变化:本指南介绍了乙醇生产过程中的一种变化。 这种变化允许烹饪、水解和发酵过程在同一工艺容器中或在单独的容器中分批完成。 由于存在局限性，本指南可用于评估具有不同于刚刚列出的运行特性的设施。然而，与所列特征不同的地方往往会降低指南的可靠性。 一个相当小的变化示例是替代小麦作为原料。小麦的加工特性与玉米、大麦或米洛相当相似。然而，小麦的泡沫往往比玉米大得多，因此容器的尺寸需要比使用玉米的容器大至少10%，否则建议使用消泡剂。 与本指南中使用的工艺特性显著不同的一个例子是将土豆替代为淀粉原料。马铃薯的加工要求与玉米、大麦和米洛的加工要求有很大差异。因此，不建议使用本指南评估马铃薯原料乙醇设施。 1.5使用指南作为检查表本指南应作为评估拟议小型制造燃料乙醇设施的检查表。它旨在供投资者、银行家和其他对此类燃料酒精设施的商业开发感兴趣的各方使用。其目的不是作为这些设施的设计指南，而是作为帮助评估此类设施的卖方或制造商已经完成的设计的指南。 本指南也可供希望审查其系统是否符合本指南建议的FEMF设计师或卖家使用。本指南将与适用的地方、州和联邦规范和法规一起使用。 1.6以英寸-磅为单位的数值应视为标准值。括号中给出的值仅供参考。 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 有关具体的危险说明，请参阅“危险”一节，以及第节中每个程序的安全章节。 1.7本指南安排如下:

1.1 This guide shall apply to FEMF as defined in Terminology E 1126. The guide is primarily intended for, but not exclusively limited to the evaluation of fermentation ethanol (ethyl alcohol) processes. This guide is primarily intended for, but not exclusively limited to, fermentation ethanol processes for small scale (less than 1 000 gal/day capacity) plants. 1.2 This guide applies to both batch process and continuous process FEMF systems. Since a wide variety of equipment configurations can exist, this guide will describe the necessary general requirements common to all FEMF facilities. 1.3 This guide is to be used in conjunction with applicable local, state, and Federal codes for designing, constructing, and operating FEMF facilities. 1.4 This guide is limited to use with plants possessing the following operational characteristics, which are fairly typical of small scale ethanol plants and are as follows: 1.4.1 Capacity: Up to 500 000-proof gal/year of 190-proof ethanol, 1.4.2 Normal Feedstocks: No. 2 yellow corn, or other suitable sample grade corn, barley, or grain sorghum (also referred to as milo). There are other starch grains such as wheat, rye, or oats, and starch tubers such as potatoes that can be used as feedstocks. Sugar crops (sugar cane, sugar beets, and molasses, that is a by-product of sugar plants) and cellulose crops (wood chips, straw, etc.) are also potential feedstock sources. However, since much of the interest in proposed ethanol plants in recent years has centered on the use of corn, barley, and milo as feedstocks for ethanol production, it is expected that the majority of plants proposed in the near future will be largely based on these abundant feedstocks. This guide concentrates on the use of corn, milo, and barley as feedstocks, 1.4.3 Normal Process Fuels: Natural gas, propane, fuel oil, wood, or coal, 1.4.4 Products: Ethanol at 190-proof or less. Distillers grains at 60 to 75 % moisture by weight and thin stillage, for use as animal grade feed and not human grade food, 1.4.5 Process: The ethanol production process referred to in this guide involves dry milling of grain, batch or continuous cooking, enzyme hydrolysis, batch fermentation, continuous distillation, and pressing or centrifuging for dewatering of stillage (for example, separating suspended solids from the stillage), and 1.4.6 Variations: One variation in the ethanol production process is addressed in this guide. This variation allows for the cooking, hydrolysis, and fermentation processes to be completed either as a batch in the same process vessel or in separate vessels. With limitations, this guide can be used to evaluate facilities with operating characteristics that differ from those just listed. However, variations from those characteristics listed will tend to lessen the reliability of the guide. An example of a fairly minor variation would be the substitution of wheat as a feedstock. Wheat processing characteristics are reasonably similar to those of corn, barley or milo. However, wheat tends to foam considerably more than corn, so vessels need to be sized at least 10 % greater than if corn is used, or the use of an antifoam agent would be advisable. An example of a significant variation from the process characteristics utilized in this guide would be the substitution of potatoes as a starch feedstock. Processing requirements for use of potatoes vary significantly from processing requirements of corn, barley, and milo. Therefore, use of this guide is not recommended for evaluation of a potato feedstock ethanol facility. 1.5 Use of Guide as ChecklistThis guide should be used as a checklist for evaluation of proposed small scale manufactured fuel ethanol facilities. It is intended to be used by investors, bankers, and other parties interested in the commercial development of such fuel alcohol facilities. It is not intended to be used as a guide for the designing of these facilities, but as a guide to assist in the evaluation of designs already completed by sellers or manufacturers of such facilities. This guide may also be utilized by FEMF designers or sellers who may wish to review their systems' conformance with the recommendations of the guide. This guide is to be used in conjunction with applicable local, state, and Federal codes and regulations. 1.6 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section on Hazards, and the safety sections for each procedure in Section. 1.7 This guide is arranged as follows: